q_id stringlengths 5 6 | title stringlengths 10 300 | selftext stringlengths 0 10.9k | document stringclasses 1
value | subreddit stringclasses 1
value | answers dict | title_urls dict | selftext_urls dict | answers_urls dict | title_body stringlengths 17 10.9k | embeddings list |
|---|---|---|---|---|---|---|---|---|---|---|
12zzoj | Would it be possible to create a human chimera? | I am reading about the production of knockout mice. An embryo is created through normal fertilization. Then, embryonic stem cells from a third "parent" are inserted into the blastocyst-stage embryo. The result is a chimera mouse that contains cells derived from two different strains. It essentially has the cells of two... | askscience | {
"a_id": [
"c6zl2da"
],
"text": [
"Intentionally creating a human chimera is likely way over the ethics line, but it does happen naturally on occasion with twins merging into a single fetus."
],
"score": [
2
]
} | {
"url": []
} | {
"url": []
} | {
"url": []
} | Would it be possible to create a human chimera?
I am reading about the production of knockout mice. An embryo is created through normal fertilization. Then, embryonic stem cells from a third "parent" are inserted into the blastocyst-stage embryo. The result is a chimera mouse that contains cells derived from two differ... | [
-0.30671456456184387,
-1.1142387390136719,
0.8486687541007996,
-0.8472270965576172,
-0.05662531778216362,
-0.6172950267791748,
0.15015871822834015,
-0.03392975032329559,
1.1832884550094604,
-0.44068413972854614,
0.8331049680709839,
0.5740855932235718,
-0.8125472664833069,
0.535424888134002... | |
1h67oi | Can cats digest keratin? | askscience | {
"a_id": [
"car8t2k"
],
"text": [
"That's disgusting, and no, mammals cannot digest keratin, which is why cats cough up hairballs. I doubt any cats are treating his litter as nutrition.\n\nWhat your friend is feeding, however, are [biting lice](_URL_0_), [clothes moths](_URL_1_), and keratinophilic fungi... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://hilo.hawaii.edu/uhh/faculty/tsutsumi/images/mallophaga_003.jpg",
"http://www.johnsonpestcontrol.com/wp-content/uploads/2011/02/comclothesmoth.jpg"
]
} | Can cats digest keratin?
| [
-0.4645289182662964,
-0.40100008249282837,
0.33372509479522705,
0.23664399981498718,
-0.6961589455604553,
-0.22633859515190125,
0.2593766450881958,
0.46608462929725647,
0.21885327994823456,
-0.031584545969963074,
0.4073445796966553,
1.075390100479126,
-0.5977322459220886,
-0.12072869390249... | ||
1u9ulz | Is there a term for a humans ability to understand how many objects are in front of them without having to think about it? (ie - 3 people sitting at a table vs 50 people in a line). Are there other species that have a higher tolerance to this? | We don't have to count or think about it when we see a small number of objects, however once that goes above 5 or 6 we do have to think a little harder and begin counting. Is there a term for this? And are there other species that are able to see a higher number of objects and know how many there are? | askscience | {
"a_id": [
"ceg3zdx"
],
"text": [
"Great question! The ability to instantly and effortlessly count a small number of objects is called subitizing or subitization.\n\n_URL_1_\n\nThe ability to approximately represent larger numbers is known as, you guessed it, the approximate number system.\n\n_URL_0_\n\n... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Approximate_number_system",
"http://en.wikipedia.org/wiki/Subitizing"
]
} | Is there a term for a humans ability to understand how many objects are in front of them without having to think about it? (ie - 3 people sitting at a table vs 50 people in a line). Are there other species that have a higher tolerance to this?
We don't have to count or think about it when we see a small number of objec... | [
0.13446219265460968,
-0.29131269454956055,
0.9429100751876831,
0.8934901356697083,
-0.8899664282798767,
-0.1422882229089737,
0.10156594961881638,
-1.5996063947677612,
-0.24873177707195282,
-0.02357378788292408,
0.8057003617286682,
0.47906872630119324,
-0.8160772919654846,
-0.22657367587089... | |
147oka | These questions are about the Earth and Matter | This is a two part question, but first here are three statements that lead me to asking them:
The Earth has layers that can be connected to different time periods in her history. Also, to my understanding, matter cannot be lost or gained. However every plant / animal starts off as one cell and ends with a massive numb... | askscience | {
"a_id": [
"c7aktnb",
"c7alwhz",
"c7bdylg"
],
"text": [
"The layers you are referring to are layers of sediment deposited around Earth. Every grain of sand/fleck of ash/cell of plant matter deposited in a sedimentary layer was removed from another location. This is erosion. You might be intere... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.rci.rutgers.edu/~schlisch/103web/Newarkbasin/synsed.html"
]
} | These questions are about the Earth and Matter
This is a two part question, but first here are three statements that lead me to asking them: The Earth has layers that can be connected to different time periods in her history. Also, to my understanding, matter cannot be lost or gained. However every plant / animal start... | [
0.08627597987651825,
-0.6708054542541504,
0.4669837951660156,
0.22785669565200806,
-0.6900642514228821,
-0.14953584969043732,
0.28754791617393494,
-0.5109425783157349,
0.22565405070781708,
0.2707560062408447,
1.200980305671692,
0.09315484762191772,
-1.081054449081421,
0.6096790432929993,
... | |
q14jp | Can we get proper scientific articles (not sensationalist news stories) that talk about NOAA's "mystery sounds", like Upsweep, Bloop, etc.? | The best I could find were NewScientist articles, but those were pretty shallow. (No pun intended.) | askscience | {
"a_id": [
"c3tvmw3",
"c3tz7ko"
],
"text": [
"[here's a PDF link to the official summary of the research done using the Equatorial Pacific Ocean autonomous hydrophone array](_URL_2_), as well as the [abstract](_URL_1_)\n\nIt explains the various characteristics and origins of the sounds detected by t... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.youtube.com/watch?v=H8QunGN1Itg",
"http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=ADA430637",
"http://www.dtic.mil/cgi-bin/GetTRDoc?Location=U2&doc=GetTRDoc.pdf&AD=ADA430637"
]
} | Can we get proper scientific articles (not sensationalist news stories) that talk about NOAA's "mystery sounds", like Upsweep, Bloop, etc.?
The best I could find were NewScientist articles, but those were pretty shallow. (No pun intended.) | [
-0.8288525342941284,
-0.34403806924819946,
0.286499559879303,
0.904718279838562,
-1.0147175788879395,
-0.7969364523887634,
-0.4147787094116211,
-1.3833352327346802,
0.9789218902587891,
0.6556744575500488,
0.8980626463890076,
0.1989108920097351,
-0.5545705556869507,
0.5473564863204956,
0.... | |
2o2r3q | At what point do we call a data set Qualitative? | In highschool, we're taught the quantitative means numbers, qualitative means describable quities. Well, given the appropriate equipment I can't think of any "qualitative" data set that wouldn't be able to be represented as a quantitative data set.
A good example is color. We typically call something "red" or "blue" ... | askscience | {
"a_id": [
"cmj6o5x",
"cmjahpk",
"cmjthvu"
],
"text": [
"A good example of a truly qualitative data set is one that uses focus groups or semi-structured interviews with participants. These are sometimes used in the social sciences. They are typically used to explore an issue beginning from a part... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://jiv.sagepub.com/content/21/10/1385.full.pdf+html",
"http://en.wikipedia.org/wiki/Computational_complexity_theory#Intractability"
]
} | At what point do we call a data set Qualitative?
In highschool, we're taught the quantitative means numbers, qualitative means describable quities. Well, given the appropriate equipment I can't think of any "qualitative" data set that wouldn't be able to be represented as a quantitative data set. A good example is colo... | [
-0.9303101301193237,
-0.3838612735271454,
-0.03228772431612015,
0.30733242630958557,
-0.5902050137519836,
-0.014799321070313454,
0.46390432119369507,
-1.248264193534851,
0.800775945186615,
0.43475231528282166,
0.9445008039474487,
0.39176204800605774,
-0.8661836981773376,
0.4823427498340606... | |
45yikf | What are inductors? How do they work? Why do we use them? | askscience | {
"a_id": [
"d01eb6v"
],
"text": [
"It's a little hard to answer because I don't know how much you know about electricity and electronics, but we're going to start from the basics.\n\nFirst thing is, you need to understand the concepts of voltage and current. In order to understand them, we're going to us... | {
"url": []
} | {
"url": []
} | {
"url": []
} | What are inductors? How do they work? Why do we use them?
| [
-0.030560163781046867,
0.23837506771087646,
-0.25957322120666504,
0.35398581624031067,
-0.02806834876537323,
-0.4895259439945221,
0.6014205813407898,
-0.3860413432121277,
0.7242702841758728,
-0.14651750028133392,
-0.6037914156913757,
0.17582672834396362,
-0.5520642399787903,
-0.88125467300... | ||
93xmbh | Why do humans often mess up on simple counting? | It seems odd that in many stressful and non-stressful environments humans often lose count of something so basic; say they’re counting coins they may have to start over again a couple of times because they keep losing count. It’s mainly weird to me, because it’s so simple. | askscience | {
"a_id": [
"e3guej9",
"e3h7mr7"
],
"text": [
"Put simply, people have three \"types\" of memory: long-term memory, short-term memory, and working memory. Long term is obviously stuff that's in there for good: Events and whatnot from your past. Short-term memory is similar but decays a lot quicker: wh... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Why do humans often mess up on simple counting?
It seems odd that in many stressful and non-stressful environments humans often lose count of something so basic; say they’re counting coins they may have to start over again a couple of times because they keep losing count. It’s mainly weird to me, because it’s so simple... | [
-0.05437609553337097,
-0.47063931822776794,
0.5387187600135803,
-0.15969370305538177,
-0.5150914788246155,
-0.042137302458286285,
-0.416862815618515,
-1.2741492986679077,
0.046419091522693634,
0.2883448600769043,
1.1769715547561646,
0.3205900192260742,
-0.38832440972328186,
0.2219083011150... | |
33bw1z | How does one determine the downstream targets of a biochemical pathway? | As title described, how does one experimentally determine what the downstream targets of a pathway? For example, in the classic Ras pathway of Ras-GTP - > Raf - > Mek - > Erk, how did people discover that Ras-GTP interacted with Raf before they knew the existence of Raf? If there is a biochemical pathway A - > B - ... | askscience | {
"a_id": [
"cqkuzi3"
],
"text": [
"You'd have to do some sort of screen. Induce a whole bunch of random mutations and then look for mutants that are able to make B but not E. You'd then have to do further work to prove where the mutant fits into the pathway."
],
"score": [
2
]
} | {
"url": []
} | {
"url": []
} | {
"url": []
} | How does one determine the downstream targets of a biochemical pathway?
As title described, how does one experimentally determine what the downstream targets of a pathway? For example, in the classic Ras pathway of Ras-GTP - > Raf - > Mek - > Erk, how did people discover that Ras-GTP interacted with Raf before they kne... | [
-0.8692800402641296,
-0.27810561656951904,
0.14525973796844482,
-0.27145692706108093,
-0.0631193220615387,
-0.5950116515159607,
1.233683466911316,
-0.6779887676239014,
0.7056178450584412,
0.30181026458740234,
0.8378415107727051,
0.15656210482120514,
-0.8783096075057983,
0.1243404820561409,... | |
49jtky | Is there any evidence to support exercise helping to cure an existing minor bacterial or viral infection? | Can you "sweat out" a cold, or the flu? Is the immune system positively or negativly influenced by excercise while sick? | askscience | {
"a_id": [
"d0sowm4",
"d0sjstg"
],
"text": [
"The immune system is depressed during exercise, since the body needs resources to deal with other things (namely, the metabolic and physical stress of exercise). Light to moderate exercise, which raises your cardiac output with minimal stress, can help ci... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.ncbi.nlm.nih.gov/pubmed/24921030",
"http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3928210/",
"http://acta.tums.ac.ir/index.php/acta/article/view/4353/4467"
]
} | Is there any evidence to support exercise helping to cure an existing minor bacterial or viral infection?
Can you "sweat out" a cold, or the flu? Is the immune system positively or negativly influenced by excercise while sick? | [
-0.054912224411964417,
-0.5361580848693848,
0.6220871806144714,
-0.5251956582069397,
-0.5401459336280823,
-0.9596953988075256,
0.5362929701805115,
-0.9843039512634277,
0.6633928418159485,
0.07222668081521988,
1.0046982765197754,
-0.15617774426937103,
-1.4019501209259033,
0.5272477269172668... | |
ls3mr | Why does self preservation take a backseat when it comes to things people enjoy? | i.e. Why do people not care about safety when doing something they like?
Examples may be: dangerous sex, riding a roller coaster, chainsaw juggling, etc.
EDIT: I meant dangerous sexy times. | askscience | {
"a_id": [
"c2v5dhk",
"c2v71tp"
],
"text": [
"Sex **is** self preservation, indeed it's the only lasting form.",
"Might want to ask this over in r/asksocialscience"
],
"score": [
5,
2
]
} | {
"url": []
} | {
"url": []
} | {
"url": []
} | Why does self preservation take a backseat when it comes to things people enjoy?
i.e. Why do people not care about safety when doing something they like? Examples may be: dangerous sex, riding a roller coaster, chainsaw juggling, etc. EDIT: I meant dangerous sexy times. | [
-0.395742267370224,
-0.13916242122650146,
1.0872507095336914,
-0.25496938824653625,
-0.5691215991973877,
-0.25012752413749695,
0.6580184102058411,
-1.189588189125061,
0.768022894859314,
0.8715327382087708,
0.5965597629547119,
0.8494806885719299,
-1.3207753896713257,
0.09159058332443237,
... | |
1k59fw | How are sellers of Cord Blood getting their hands on it? | My wife works at a medical supplier and she told me that Pall Medical sells cord blood. She said it goes for ~$2000 an order.
Uh. I only know of one source for this substance so... How are companies that are making a profit off this substance getting it? | askscience | {
"a_id": [
"cbli7c1"
],
"text": [
"> There are several methods for collecting cord blood. The method most commonly used in clinical practice is the \"closed technique\", which is similar to standard blood collection techniques. With this method, the technician [cannulates](_URL_2_ \"A cannula (from Latin... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Cord_blood#Cord_blood_harvesting",
"http://en.wikipedia.org/wiki/Cryopreservation",
"http://en.wikipedia.org/wiki/Cannula"
]
} | How are sellers of Cord Blood getting their hands on it?
My wife works at a medical supplier and she told me that Pall Medical sells cord blood. She said it goes for ~$2000 an order. Uh. I only know of one source for this substance so... How are companies that are making a profit off this substance getting it? | [
-0.08698088675737381,
-0.49235931038856506,
-0.07791092991828918,
0.1809668242931366,
-0.436834454536438,
-0.11037857830524445,
-0.01711626537144184,
-0.44947245717048645,
0.7474120855331421,
0.7481580972671509,
0.6804339289665222,
0.7036833763122559,
-0.0336717888712883,
0.773104488849639... | |
20wzr1 | What do omega-3 DHA, EPA, ALA do for our brains? Do they act as components of certain brain cells? | askscience | {
"a_id": [
"cg7nncv",
"cgavuvz"
],
"text": [
"All cells require fatty acids to modulate membrane structures for a variety of cellular processes, namely, endocytosis. Neurons are particularly susceptible to perturbation in these processes, because of their extreme morphology, and while the exact mecha... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://medind.nic.in/icb/t05/i3/icbt05i3p239.pdf",
"http://europepmc.org/abstract/MED/12728744/reload=0;jsessionid=NNPY1gSOglPgnfVCpo7w.12"
]
} | What do omega-3 DHA, EPA, ALA do for our brains? Do they act as components of certain brain cells?
| [
-0.07324033230543137,
-0.28463777899742126,
1.102709174156189,
-0.5077808499336243,
-0.28838714957237244,
-1.0981980562210083,
1.2105127573013306,
-0.41146621108055115,
1.0001415014266968,
0.1600627899169922,
0.35834166407585144,
0.725199818611145,
-1.541817545890808,
-0.10489225387573242,... | ||
b03m0m | What is the science behind getting hit in the head and low testosterone? | I was reading a post on r/boxing how getting hit in the head damages the pituitary gland, and causes low testosterone, yet it's a slow, steady process. What does this mean? Every hit chips some of your testosterone? Or perhaps repeated, long term hits damage your testosterone? I've had a few concussions and I think my ... | askscience | {
"a_id": [
"eidobtr"
],
"text": [
"Oh this is a fun question. \n\nSo the pituitary gland is this tiny lobule in your brain. It produces hormones that stimulate different glands in your body through feedback loops. \n\nNow the hormone I want to specifically focus is LH. It is produced in the pituitary and... | {
"url": []
} | {
"url": []
} | {
"url": []
} | What is the science behind getting hit in the head and low testosterone?
I was reading a post on r/boxing how getting hit in the head damages the pituitary gland, and causes low testosterone, yet it's a slow, steady process. What does this mean? Every hit chips some of your testosterone? Or perhaps repeated, long term ... | [
0.057400476187467575,
-0.4868827164173126,
0.6900784373283386,
-0.16173844039440155,
-0.9551993012428284,
-0.10194045305252075,
-0.5183723568916321,
-0.9335666298866272,
1.1086446046829224,
0.5067822933197021,
0.627620279788971,
0.9714139103889465,
-0.5198948979377747,
0.4317256510257721,
... | |
1vww3n | Is the entire human body "full"? | I was curious as to whether the entire human body is "full." What I mean by this is that are there empty spaces in our body? Is the entire internal area or volume of our bodies full? For example: Lets say that there are two organs, and they are a distance apart from each other. Is there nothing between them, or is it f... | askscience | {
"a_id": [
"cewkcv7"
],
"text": [
"There should be no free air in any body cavity - this could indicate either a pneumothorax in the chest or a ruptured/perforated visceral organ in the abdomen. There are no otherwise 'empty' spaces because that would imply a vacuum, which the body would not support (th... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Connective_tissue",
"http://en.wikipedia.org/wiki/Peritoneum",
"http://biology.kenyon.edu/courses/biol112/Biol112WebPage/Syllabus/Topics/Week%207/Resources/coelom.GIF",
"http://en.wikipedia.org/wiki/Coelom",
"http://en.wikipedia.org/wiki/Retroperitoneal_spa... | Is the entire human body "full"?
I was curious as to whether the entire human body is "full." What I mean by this is that are there empty spaces in our body? Is the entire internal area or volume of our bodies full? For example: Lets say that there are two organs, and they are a distance apart from each other. Is there... | [
-0.1926177442073822,
-0.6657650470733643,
1.2935388088226318,
0.6975927352905273,
-0.8676047921180725,
-0.28161191940307617,
-0.2853745222091675,
-0.6776880025863647,
-0.013529147021472454,
-0.6951760649681091,
0.9089375138282776,
0.8863498568534851,
-1.0017906427383423,
-0.137239217758178... | |
1a1itq | How much water is absorbed on the way down? | If I drink a cup of water, how much will end up in a pool at the bottom of my stomach? Further, how long will it take for the rest of that cup to absorb into the body? | askscience | {
"a_id": [
"c8tbak2"
],
"text": [
"Water is absorbed, filtered and reabsorbed through several organs and membranes controlled by neural and hormonal influence. Water is absorbed throughout your lower GI tract as well as in your kidneys. \nThe amount of water that is retained is regulated by a set point o... | {
"url": []
} | {
"url": []
} | {
"url": []
} | How much water is absorbed on the way down?
If I drink a cup of water, how much will end up in a pool at the bottom of my stomach? Further, how long will it take for the rest of that cup to absorb into the body? | [
0.2265022248029709,
-0.10763392597436905,
0.9349220395088196,
0.13954195380210876,
-0.17353524267673492,
-0.41819003224372864,
0.18255268037319183,
-0.7415158748626709,
0.8672608137130737,
0.04978961497545242,
0.5977718234062195,
0.7149932980537415,
-0.436687707901001,
0.22254474461078644,... | |
9wvwdk | Is it cheaper to build up or down? Why? | askscience | {
"a_id": [
"e9qvfwc"
],
"text": [
"Definetely up.\n\nIf you build a certain height / deepth, the height difference relative to the ground will remain the same in either direction. \n\nIf you build upwards, the stability of your construction itself is your biggest problem. If it's stable enough, you could... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Is it cheaper to build up or down? Why?
| [
-0.6381554007530212,
0.03175358474254608,
0.2950424551963806,
0.1823676973581314,
-0.4024656116962433,
0.04187248274683952,
0.38225430250167847,
-1.189711332321167,
-0.3221138119697571,
-0.5104153156280518,
0.1986205279827118,
0.25337404012680054,
-0.6738843321800232,
-1.468860387802124,
... | ||
1ri6wl | Please help settle a workplace feud regarding space heaters and fans. | A guy I work with keeps telling me that putting a fan behind a space heater will make the room heat up slower. I argued that the same amount of heat is being produced by the heater, and in addition, the fan's motor would produce even more heat, and possibly even friction from the blades. I said it would just disperse t... | askscience | {
"a_id": [
"cdnilrg",
"cdni8d1",
"cdnjfua",
"cdnj58v"
],
"text": [
"Putting a fan behind the space heater will produce forced convection, which will cool down the heater and heat up the room as a whole. This is the reason central furnaces have fans in the first place: it spreads the heat arou... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Please help settle a workplace feud regarding space heaters and fans.
A guy I work with keeps telling me that putting a fan behind a space heater will make the room heat up slower. I argued that the same amount of heat is being produced by the heater, and in addition, the fan's motor would produce even more heat, and p... | [
0.023797661066055298,
-0.12401726841926575,
0.17654064297676086,
-0.4556809961795807,
-0.5361774563789368,
-0.561712920665741,
-0.5067954659461975,
-0.4894043207168579,
0.9541947245597839,
-0.35475191473960876,
0.2703545093536377,
0.6726191639900208,
-0.5037389993667603,
0.6062590479850769... | |
263kx5 | In a synapse, how does the axon terminal stay put relative to the post-synaptic cell if the two aren't touching? What is holding it in place? | In all the depictions of synapses I've found, the axon terminal floats above the post-synaptic cell, with no contact between the two. Is this actually the case? Or is there some structure of some kind holding them in place? | askscience | {
"a_id": [
"chnbnh3",
"chnc2zd"
],
"text": [
"There are lots of other cells in the brain, as well as the ECM (extracellular matrix) which does add support. The other main cells of the brain are the astrocytes (main cells in support/holding neurons in place) oligodendrocytes (provide the myelin sheath... | {
"url": []
} | {
"url": []
} | {
"url": []
} | In a synapse, how does the axon terminal stay put relative to the post-synaptic cell if the two aren't touching? What is holding it in place?
In all the depictions of synapses I've found, the axon terminal floats above the post-synaptic cell, with no contact between the two. Is this actually the case? Or is there some ... | [
-0.21809770166873932,
-0.3708385229110718,
0.6287673711776733,
0.31235942244529724,
-0.3784652352333069,
-0.18102487921714783,
0.20564386248588562,
-0.22904828190803528,
-0.5283768773078918,
-0.15753240883350372,
0.7812776565551758,
0.5602462291717529,
-0.6752921342849731,
-0.2014932185411... | |
4vn0w7 | Walking through which liquid(s) is closest to walking through air? | A person wearing a sufficient suit, walking (or just moving their arms), fully submerged in a vat of which liquid would be most similar to a person walking in an empty vat? I'm pretty sure the factors of importance here are viscosity, temperature, density, and inertia... | askscience | {
"a_id": [
"d61bhcf",
"d61bncz"
],
"text": [
"The question doesn't really have enough context to make a lot of sense, but I'll take a stab:\n\nAcetone and ether have two of the lowest viscosities out of any liquids at room temperature, but they are still about 16 times more viscous than air. Being an... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Walking through which liquid(s) is closest to walking through air?
A person wearing a sufficient suit, walking (or just moving their arms), fully submerged in a vat of which liquid would be most similar to a person walking in an empty vat? I'm pretty sure the factors of importance here are viscosity, temperature, densi... | [
-0.3653540313243866,
-0.2793477177619934,
0.7612037658691406,
0.1277974396944046,
-0.18958008289337158,
-0.6308414936065674,
-0.2252240777015686,
-0.6121848821640015,
-0.46080487966537476,
-1.2191299200057983,
0.6996579766273499,
0.8241997957229614,
-0.9371336698532104,
-0.2383223623037338... | |
1ruqet | How can I calculate the power output of a Fresnel reflector/Parabolic concentrator | I'm currently working on a project for my engineering degree and am struggling with calculating outputs for a solar oven. I mainly want to focus on viability within the UK and am unsure what to use as a Q value (for the amount of energy provided by the sun) within my Stefan-Boltzmann equation. I've seen the average pro... | askscience | {
"a_id": [
"cdrb3wc"
],
"text": [
"The amount of solar energy that you have to work with is going to be in the form of Watts per square meter - energy per area per time. The area in this case is the area of your reflectors - this is your maximum starting value. That energy is then concentrated into a s... | {
"url": []
} | {
"url": []
} | {
"url": []
} | How can I calculate the power output of a Fresnel reflector/Parabolic concentrator
I'm currently working on a project for my engineering degree and am struggling with calculating outputs for a solar oven. I mainly want to focus on viability within the UK and am unsure what to use as a Q value (for the amount of energy ... | [
-0.03759121894836426,
-0.4332972764968872,
0.6761577129364014,
-0.37976938486099243,
-0.3958960175514221,
-0.522750973701477,
-0.2867577075958252,
-0.558271050453186,
1.421208381652832,
0.0980186015367508,
0.7500457167625427,
0.1861906200647354,
-0.3051670491695404,
0.8245537281036377,
-... | |
wsnaj | What is the least complex life form that actively protects its offspring? | Just wondering what the simplest form of life is that is aware of its offspring and is takes care of it such a degree that it will fight other shit. For instance, alligators will stick around and respond to the cries of their kids. Are there any "less developed" species that do this, i.e., fish or insects? | askscience | {
"a_id": [
"c5g349c",
"c5g6rb6"
],
"text": [
"Ants.\n\nHoneybees.\n\n[Wolf spider. Warning: spider pic.](_URL_0_)\n\n[Mouthbrooding fish, various species.](_URL_2_)\n\n [Archey's frog.](_URL_1_)",
"Well since you said \"aware\" and \"offpspring\" you're not going to get anything much simpler than... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Wolf_spider",
"http://en.wikipedia.org/wiki/Archey%27s_Frog",
"http://en.wikipedia.org/wiki/Mouthbrooder"
]
} | What is the least complex life form that actively protects its offspring?
Just wondering what the simplest form of life is that is aware of its offspring and is takes care of it such a degree that it will fight other shit. For instance, alligators will stick around and respond to the cries of their kids. Are there any ... | [
-0.6382138133049011,
-0.4319964051246643,
0.7621265649795532,
0.28474146127700806,
-0.3668186664581299,
-0.09590210020542145,
-0.08237597346305847,
-1.2353649139404297,
0.5150147676467896,
0.15204861760139465,
0.8872383832931519,
0.6733404994010925,
-1.5155996084213257,
0.9564805626869202,... | |
1fzu3d | Me and my sworn enemy are fighting and fall out of a window together, Hollywood style. Would using him to cushion my landing increase my chances of survival? | askscience | {
"a_id": [
"cafh9q1"
],
"text": [
"It would absolutely help. While you'll both have the same [change in momentum](_URL_0_), the force you experience is going to be less because it will occur over a longer time period. A human body is going to be much more compressible than concrete or asphalt, assuming... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Impulse_\\(physics\\)"
]
} | Me and my sworn enemy are fighting and fall out of a window together, Hollywood style. Would using him to cushion my landing increase my chances of survival?
| [
0.080598846077919,
-0.32130786776542664,
0.35325610637664795,
-0.728334903717041,
-0.30822810530662537,
-0.24456073343753815,
-0.0033920868299901485,
-0.34894031286239624,
1.0861129760742188,
0.6748831272125244,
0.3054249584674835,
0.6486475467681885,
-0.19243094325065613,
0.70620030164718... | ||
7ujksq | Do I gain anything plugging a 10 gauge exstention cable into a standard wall outlet for running my tools? | askscience | {
"a_id": [
"dtkwnx0"
],
"text": [
"To clarify a bit, do you mean \"instead of a lighter extension cord\" or \"instead of just plugging the tool straight into the wall?\"\n\nThere will be less resistance loss compared to a lighter extension cord of the same length, so you'll save a little energy. A heavi... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Do I gain anything plugging a 10 gauge exstention cable into a standard wall outlet for running my tools?
| [
-0.07972801476716995,
-0.3602772653102875,
0.7535991668701172,
-0.049437664449214935,
0.08003483712673187,
-0.5119955539703369,
-0.0895402729511261,
-0.32283416390419006,
1.0767159461975098,
-0.8214961290359497,
0.40024834871292114,
-0.029542839154601097,
-0.5019064545631409,
0.07970163226... | ||
5ullew | The 4 fundamental forces of nature are well known, but how far can they be condensed? | Everybody was taught about the 4 fundamental forces of nature ( weak interaction, strong interaction, gravity, and electromagnetism), but lately the weak interaction and electromagnetism can be unified as the Electroweak Force, while the Strong interaction sometimes gets split into 'residual' vs 'fundamental'. Also, qu... | askscience | {
"a_id": [
"ddvoprm"
],
"text": [
"The residual strong force, or \"nuclear force\" is more of an indirect knockoff force, in much the same way [Van der Walls forces](_URL_0_) are a residual effect of electromagnetism.\n\n~~Electromagnetism and the Weak Interaction are separate at low energies, but at hot... | {
"url": []
} | {
"url": []
} | {
"url": [
"https://en.wikipedia.org/wiki/Van_der_Waals_force",
"https://en.wikipedia.org/wiki/Grand_Unified_Theory"
]
} | The 4 fundamental forces of nature are well known, but how far can they be condensed?
Everybody was taught about the 4 fundamental forces of nature ( weak interaction, strong interaction, gravity, and electromagnetism), but lately the weak interaction and electromagnetism can be unified as the Electroweak Force, while ... | [
-0.36307939887046814,
-0.4637211859226227,
1.4012240171432495,
0.7057366967201233,
-0.5954744219779968,
-0.5487374663352966,
-0.16737639904022217,
-0.8566953539848328,
0.19130119681358337,
0.18598118424415588,
0.9916206002235413,
0.36947348713874817,
-0.3804951608181,
0.6600015163421631,
... | |
1f8jct | Viewing history with FTL travel | askscience | {
"a_id": [
"ca7wyjm",
"ca807og",
"ca7tf0z"
],
"text": [
"No, there is a fundamental limit on the resolution of any telescope and it is well above the resolution needed to view something with such a small angular area.",
"If you can travel faster than light, then you can do something simpler t... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.theculture.org/rich/sharpblue/archives/000089.html"
]
} | Viewing history with FTL travel
| [
-0.40582460165023804,
0.01521238312125206,
0.9970531463623047,
-0.7311511039733887,
0.1472146213054657,
-0.637695848941803,
0.7247737050056458,
0.6195539236068726,
-0.5826199650764465,
-0.2751952111721039,
0.7146164178848267,
0.6705514192581177,
0.145818829536438,
0.5625948905944824,
0.6... | ||
wwkqa | What is the significance of the 565 gigaton CO2 threshold? | This [article](_URL_0_) says that "humans can pour roughly 565 more gigatons of carbon dioxide into the atmosphere by midcentury and still have some reasonable hope of staying below two degrees" and "we'll blow through our 565-gigaton allowance in 16 years." Does this mean that we have just 16 years of precious civiliz... | askscience | {
"a_id": [
"c5h2p8u"
],
"text": [
"I only want to point out that civilization won't necessarily collapse because of climate change. It'll drastically alter our environment, and probably (although not definitely) result in lots of famine, disease (because of refugees), resource wars, etc.\n\nBut that won'... | {
"url": []
} | {
"url": [
"http://www.rollingstone.com/politics/news/global-warmings-terrifying-new-math-20120719?page=2"
]
} | {
"url": []
} | What is the significance of the 565 gigaton CO2 threshold?
This [article](_URL_0_) says that "humans can pour roughly 565 more gigatons of carbon dioxide into the atmosphere by midcentury and still have some reasonable hope of staying below two degrees" and "we'll blow through our 565-gigaton allowance in 16 years." Do... | [
0.08407279849052429,
-0.697869598865509,
0.7116727828979492,
-0.6731840968132019,
-0.16798147559165955,
-0.6327488422393799,
-0.6499255895614624,
-1.0147817134857178,
0.2799243927001953,
0.40444689989089966,
0.9208231568336487,
0.432976096868515,
-1.1521589756011963,
0.679019033908844,
0... | |
1rcvso | Why does it matter to have both Big and Little Endian? | Wouldn't it be easier if everyone agreed on using one over the other? Or are their cases where byte significance matters? | askscience | {
"a_id": [
"cdm27j3"
],
"text": [
"The original computer architectures used different circuitry for retrieving bytes assembling into word sizes matching the register size in the CPU. When you were looking at the memory sequentially, independent from the CPU, you needed to know which way the CPU assemble... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Why does it matter to have both Big and Little Endian?
Wouldn't it be easier if everyone agreed on using one over the other? Or are their cases where byte significance matters? | [
-0.39170271158218384,
-0.3544151782989502,
0.5850120186805725,
0.18970827758312225,
-0.752513587474823,
-0.2648143172264099,
-0.22816872596740723,
-1.0588430166244507,
-0.057350315153598785,
-0.44649115204811096,
0.41637688875198364,
0.5577538013458252,
-0.9601534008979797,
-0.416248172521... | |
33bwqu | Size limitations of medieval engineering? | I am interested in the physical restrictions that would apply to a medieval stone tower (perhaps limiting the height to which it could be constructed). The research that I have done to-date has raised certain questions that I do not possess the mathematical ability to resolve.
[The Philadelphia City Hall](_URL_0_) is... | askscience | {
"a_id": [
"cqjge6c",
"cqjlhbh"
],
"text": [
"From a technical perspective, there is a theoretical maximum height for every material, based on its compressive strength, be it bricks, glass, steel, whatever (Assuming a single column). I would think that just because the theoretical height is X, you co... | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Philadelphia_City_Hall",
"http://en.wikipedia.org/wiki/Salisbury_Cathedral",
"http://en.wikipedia.org/wiki/Cathedral_of_Learning"
]
} | {
"url": []
} | Size limitations of medieval engineering?
I am interested in the physical restrictions that would apply to a medieval stone tower (perhaps limiting the height to which it could be constructed). The research that I have done to-date has raised certain questions that I do not possess the mathematical ability to resolve. ... | [
0.37117353081703186,
-0.6446443796157837,
0.8651859760284424,
-0.5849787592887878,
-0.34159260988235474,
-0.28281262516975403,
-0.1057228073477745,
-0.9699166417121887,
-0.03924906253814697,
0.47083306312561035,
0.98052978515625,
0.3285236060619354,
-0.3445892333984375,
0.5199317932128906,... | |
s8kb4 | since our anus doesn't self lubricate, why doesn't pooping rip it? | I know poo generally isn't super hard, rigid, or pointy. But it is coming out of somewhere that has to stretch to allow its passage. So, why doesn't it cause tearing? | askscience | {
"a_id": [
"c4byrzh"
],
"text": [
"The entire GI tract from mouth to anus has a mucus membrane which aside from containing bicarbonate and electrolytes acts as a natural lubricant. Large amounts of mucus are present in the SI and colon to protect the epithelial cells and allow lubrication for food excret... | {
"url": []
} | {
"url": []
} | {
"url": []
} | since our anus doesn't self lubricate, why doesn't pooping rip it?
I know poo generally isn't super hard, rigid, or pointy. But it is coming out of somewhere that has to stretch to allow its passage. So, why doesn't it cause tearing? | [
-0.1550823450088501,
-0.6490105986595154,
0.3266996443271637,
0.07916363328695297,
-0.8851723670959473,
-0.46323996782302856,
-0.12148721516132355,
-0.45303794741630554,
0.4392222464084625,
0.6259892582893372,
1.080780267715454,
0.2095535397529602,
-0.0726095512509346,
0.6897254586219788,
... | |
in2z8 | What kind of wizardry are my Otter Pops doing? | My otter pops did not freeze in the freezer after two days of being in. When I take them out, and hit them on the counter, they magically do an instant freeze! Almost cartoon-like. Whattheheckisgoingon? More specifically, 1) Why didn't they freeze in the first place? and 2) Why does the banging make them freeze? | askscience | {
"a_id": [
"c252igi",
"c253u7l"
],
"text": [
"It's called [supercooling](_URL_0_). I am not an expert, but I'll try to do it justice. Essentially, just because you cool something, it may not freeze. In this case, freezing will happen if there's a nucleation site or a variation in pressure allowing th... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Supercooling"
]
} | What kind of wizardry are my Otter Pops doing?
My otter pops did not freeze in the freezer after two days of being in. When I take them out, and hit them on the counter, they magically do an instant freeze! Almost cartoon-like. Whattheheckisgoingon? More specifically, 1) Why didn't they freeze in the first place? and 2... | [
-0.32648414373397827,
-0.8196756839752197,
0.24813540279865265,
-0.16351108253002167,
-0.3979455828666687,
-0.39704567193984985,
-0.08861042559146881,
-0.35787007212638855,
0.9659873247146606,
0.49005818367004395,
1.1545896530151367,
0.23528002202510834,
-0.24586887657642365,
0.79192847013... | |
jphyq | Simple CFM question for squirrel cage fan | Dayton 6 inch fan with a 3/4 hp motor that spins at 1750 rpm. My Google fuuu is failing me, and I'm really wanting to mount this fan. It has a 6inch round intake and 7.1/4inch x 4inch rectangle on the out take. I've since made a adapter to take this rectangle out back, to 6 in round. I assume this should have no affect... | askscience | {
"a_id": [
"c2egph3"
],
"text": [
"I'm not sure what you're asking exactly. The existing outlet size and the 6\" round duct are nearly the same cross section, so effectively you will see the same flow rate and velocity from both of them. There will be some losses in the transition, but it should be minor... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Simple CFM question for squirrel cage fan
Dayton 6 inch fan with a 3/4 hp motor that spins at 1750 rpm. My Google fuuu is failing me, and I'm really wanting to mount this fan. It has a 6inch round intake and 7.1/4inch x 4inch rectangle on the out take. I've since made a adapter to take this rectangle out back, to 6 in ... | [
-0.030209645628929138,
-0.44635000824928284,
0.724087655544281,
-0.11168836802244186,
-0.5584285259246826,
-0.5860398411750793,
-0.13055206835269928,
-0.5840041041374207,
1.5393480062484741,
0.2831769287586212,
0.8263176679611206,
0.4767777621746063,
-0.34370511770248413,
0.761555016040802... | |
sf47h | What causes humans to make mistakes on things we do everyday? | For instance: a typo on a word you type all of the time. What causes these little mistakes on tasks we do a million times? Are we complacent, tired or something along those lines? | askscience | {
"a_id": [
"c4dkt1m"
],
"text": [
"This topic is relevant to my interests upvote and watching."
],
"score": [
2
]
} | {
"url": []
} | {
"url": []
} | {
"url": []
} | What causes humans to make mistakes on things we do everyday?
For instance: a typo on a word you type all of the time. What causes these little mistakes on tasks we do a million times? Are we complacent, tired or something along those lines? | [
0.10429979860782623,
-0.30883103609085083,
0.554349422454834,
-0.07014966756105423,
-0.5342414975166321,
-0.003953196574002504,
0.14087164402008057,
-0.795091986656189,
-0.21304552257061005,
-0.3008291721343994,
1.108838438987732,
0.22484128177165985,
-0.6232987642288208,
0.175310537219047... | |
ztgpa | If you are wearing a hoodie in the rain and it gets completely soaked through,is there any benefit in keeping it on? | askscience | {
"a_id": [
"c67lbm7"
],
"text": [
"It depends on what's the benefit you are looking for.\n\nIf you want protection from cold, then no. On the contrary, the contact with the soaked cloth will make you lose heat faster, and just being naked (in the rain) will probably be better.\n\nIf you want protection f... | {
"url": []
} | {
"url": []
} | {
"url": []
} | If you are wearing a hoodie in the rain and it gets completely soaked through,is there any benefit in keeping it on?
| [
-0.09380818903446198,
-0.5577026605606079,
0.4158690273761749,
-1.0801992416381836,
-0.8772134184837341,
-0.1298951804637909,
0.11677443236112595,
-0.9498152136802673,
0.37412166595458984,
0.3349751830101013,
0.3200054168701172,
0.7516306042671204,
-1.1817044019699097,
0.18030086159706116,... | ||
2rv7gb | Is the length of a Meter arbitrary, or does it have to be a specific distance? | So i was reading and saw that in 1983, the meter was redefined as "the distance traveled by light in a vacuum during a time of 1/299792458 seconds". Is that length of time measurement arbitrary? Why did they decide on that value? Would the laws/equations we have still work if a different length of time was used to defi... | askscience | {
"a_id": [
"cnjociv",
"cnjms92"
],
"text": [
"The length of a meter has had various definitions over the course of history. Each time it gets redefined the goal has been to make it a measurement that is more precise and more universal. A measurement of \"1/10,000,000 the distance between the equato... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Is the length of a Meter arbitrary, or does it have to be a specific distance?
So i was reading and saw that in 1983, the meter was redefined as "the distance traveled by light in a vacuum during a time of 1/299792458 seconds". Is that length of time measurement arbitrary? Why did they decide on that value? Would the l... | [
0.037535201758146286,
-0.36263856291770935,
0.729317843914032,
-0.2298576831817627,
-0.32730528712272644,
-0.2645590901374817,
0.2260478138923645,
-0.6572878956794739,
0.2177000790834427,
-0.0405341275036335,
1.0479826927185059,
0.6421067118644714,
-0.9282112717628479,
0.3313080966472626,
... | |
77hb4c | In the honor of the upcoming mole day, is it possible to calculate the molar mass of an avocado? | askscience | {
"a_id": [
"don4tkw",
"doocrs7"
],
"text": [
"A very simple approximation. \n\n12 grams of a sample of carbon-12 isotope contains one mole of substances as defined by Avogadro's constant. The mass of the avocado in grams divided by 12 gives us a ratio value, giving us the number of moles.\n\nThe rati... | {
"url": []
} | {
"url": []
} | {
"url": [
"https://www.google.dk/search?client=ms-android-lenovo&ei=jyPrWbn9D8HPwQL0iqaoCw&sjs=3&q=weight+of+earth&oq=weight+of+eart&gs_l=mobile-gws-serp.1.0.0i70i251j0l4.177516.186067..188503.......178.1570.6j8............mobile-gws-wiz-serp.....3..35i39j0i67j0i203j0i20i263.xZhf8LWgRlk%3D"
... | In the honor of the upcoming mole day, is it possible to calculate the molar mass of an avocado?
| [
-0.36628758907318115,
-0.25252002477645874,
0.6931309103965759,
-1.417917013168335,
0.32702282071113586,
0.21190820634365082,
-0.0916520282626152,
-0.6127651929855347,
1.3358726501464844,
0.07831747084856033,
0.3649645149707794,
0.2915985882282257,
-0.547690749168396,
-0.020969180390238762... | ||
2m4pcm | How do Philae's on-board systems store data, and how do they manage collective issues like total upward thrust generated by multiple operations? | Philae landing on Churyumov-Gerasimenko today is amazing on many levels. Brings up a couple of questions:
* Mass storage on Philae: is it disks? If so, 1) how do they keep the torque of spinning up from throwing the craft off-course? (raid 5 disks spinning opposite each other?) and 2) how do they make the heads float ... | askscience | {
"a_id": [
"cm1n8f0"
],
"text": [
"> Mass storage on Philae: is it disks?\n\nDisks wouldn't do well with ionizing radiation in space, acceleration during launch and vibrations during stage separations. Usually different types of solid storage are used or even just volatile RAM, but in any case we're tal... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Radiation_hardening",
"http://www.sgf.hu/newsgfweb3_005.htm"
]
} | How do Philae's on-board systems store data, and how do they manage collective issues like total upward thrust generated by multiple operations?
Philae landing on Churyumov-Gerasimenko today is amazing on many levels. Brings up a couple of questions: * Mass storage on Philae: is it disks? If so, 1) how do they keep the... | [
-0.6788175106048584,
-0.09915436059236526,
0.8222731351852417,
-0.02450024150311947,
-0.8240200281143188,
-0.34263795614242554,
-0.577889084815979,
-0.5810661315917969,
0.010596659034490585,
0.06116292625665665,
0.9535864591598511,
0.2827858328819275,
-0.5855222940444946,
0.493159651756286... | |
a0i3ol | You often hear martial artists such as boxers loudly exhaling when throwing punches. Does this actually increase power output, and if it does, how do? | askscience | {
"a_id": [
"eaie3g2"
],
"text": [
"Yes was doing some research on this a while back and learned it does for three reasons \n1. It helps release back muscles to add more force\n2. When you exhale real fast it helps stabilize the core\n3. It throws the opponents timing of be a half second or so( in tennis)... | {
"url": []
} | {
"url": []
} | {
"url": []
} | You often hear martial artists such as boxers loudly exhaling when throwing punches. Does this actually increase power output, and if it does, how do?
| [
0.6511173248291016,
-0.24997687339782715,
0.5422793626785278,
-0.2356065809726715,
-1.3161040544509888,
-0.15820899605751038,
-0.3313913941383362,
-0.2684771716594696,
1.234063982963562,
0.049253158271312714,
0.41657406091690063,
0.3717101216316223,
0.3013620674610138,
0.014584504067897797... | ||
2jhfow | What is "part-to-part" or "single part" force repeatability? | I have to order a resistor ([Link to product sheet](_URL_0_)) Unfortunately I do not know what "part-to-part" or "single part" force repeatability is. I get that it's like tolerance on a normal resistor, but how do the two differ? | askscience | {
"a_id": [
"clc4yq1"
],
"text": [
"It looks like it's referring to the tolerances of the force sensing component. Part-to-part repeatability means that if you take a force measurement with one sensor, and then take the same reading with additional sensors (of the same model), they will all be within 6% ... | {
"url": []
} | {
"url": [
"http://www.trossenrobotics.com/productdocs/FSR_Integration_Guide.pdf"
]
} | {
"url": []
} | What is "part-to-part" or "single part" force repeatability?
I have to order a resistor ([Link to product sheet](_URL_0_)) Unfortunately I do not know what "part-to-part" or "single part" force repeatability is. I get that it's like tolerance on a normal resistor, but how do the two differ? | [
-0.3048538863658905,
-0.7383121848106384,
0.7163469791412354,
0.6511501669883728,
-0.9353027939796448,
-0.48089829087257385,
0.5114421844482422,
-0.5575985908508301,
0.9786329865455627,
0.16885274648666382,
0.8181625008583069,
0.37957680225372314,
-0.5805425643920898,
-0.334710955619812,
... | |
1k6ww7 | Is this incinerator legit? | I was approached by a guy for the sale of an waste incenerator today for use in homes. These are his claims.
1. 100% Eco friendly, zero pollution and user friendly
2. The process is done between 400 degree centigrade and 450 degree centigrade, with out the use of any fuel or electricity.
3. Capability to burn any wa... | askscience | {
"a_id": [
"cbm2a73",
"cbm2iys",
"cbm3bnk"
],
"text": [
"> 100% Eco friendly, zero pollution\n\n+ \n\n > Capability to burn any waste\n\n= \n\nBullshit right there. \n\nI would treat this with severe suspicion.",
"It is not possible to burn wet things without either drying them out,\nor putti... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Is this incinerator legit?
I was approached by a guy for the sale of an waste incenerator today for use in homes. These are his claims. 1. 100% Eco friendly, zero pollution and user friendly 2. The process is done between 400 degree centigrade and 450 degree centigrade, with out the use of any fuel or electricity. 3. C... | [
0.2340523600578308,
-0.601082444190979,
0.027160856872797012,
0.1393471658229828,
-0.30911698937416077,
-1.1425954103469849,
-0.23402005434036255,
-0.5876683592796326,
1.5684423446655273,
-0.2931276857852936,
0.35482585430145264,
0.369552344083786,
-0.9760852456092834,
0.5113707184791565,
... | |
1g2mz7 | Can someone explain anapoles to me? | [This article](_URL_1_) was posted in /r/science earlier and hypothesizes that dark matter may have anapoles instead of normal electric charge. I looked it up on [wikipedia](_URL_0_), but the article is pretty difficult to follow.
What exactly is this and why is it different from regular electromagnetism? | askscience | {
"a_id": [
"cag7sos"
],
"text": [
"It is not different from regular electromagnetism per se, we just don't really encounter them much except inside some particular material systems.\n\nNow, down to business. First off, an 'anapole' does not necessarily refer to a different kind of charge than that of ele... | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Toroidal_moment",
"http://www.reddit.com/r/science/comments/1g24kr/simple_theory_may_explain_dark_matter_most_of_the/"
]
} | {
"url": [
"http://www.societyofrobots.com/images/actuators_solonoid_magnetic_field.gif"
]
} | Can someone explain anapoles to me?
[This article](_URL_1_) was posted in /r/science earlier and hypothesizes that dark matter may have anapoles instead of normal electric charge. I looked it up on [wikipedia](_URL_0_), but the article is pretty difficult to follow. What exactly is this and why is it different from reg... | [
-0.2989707887172699,
-0.34269586205482483,
0.2939929962158203,
-0.21933843195438385,
-0.8234520554542542,
-0.4318676292896271,
0.33799222111701965,
-0.6256193518638611,
0.824303388595581,
0.5715903639793396,
0.8818129897117615,
-0.005931481719017029,
-0.3803641200065613,
0.6393689513206482... | |
1opn74 | Military Grid Reference System and Curvature of the Earth. | The Pythagorean Theory states that A^2 + B^2 = C^2 can be used to find a distance between two points on a grid system. Using the Military Grid Reference System, is it necessary to additionally account for the curvature of the earth? If so, how?
Thank you for any help. | askscience | {
"a_id": [
"ccuhxmg"
],
"text": [
"Former US Army Intel, (HUMINT) Cartographer, and Marksman here...\n\nThe principal you're looking for is outlined here: _URL_3_\n\nAlso important to note, that over especially long ranges you need to take in account _URL_0_.\n\nThe distance it takes an object to reach i... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Axial_tilt",
"http://en.wikipedia.org/wiki/Great_circle",
"http://i.imgur.com/ZUUl9hU.png",
"http://en.wikipedia.org/wiki/Coriolis_effect"
]
} | Military Grid Reference System and Curvature of the Earth.
The Pythagorean Theory states that A^2 + B^2 = C^2 can be used to find a distance between two points on a grid system. Using the Military Grid Reference System, is it necessary to additionally account for the curvature of the earth? If so, how? Thank you for an... | [
-0.6570165157318115,
-0.03720143809914589,
0.44268667697906494,
0.15932604670524597,
-0.9162965416908264,
-0.5994621515274048,
-0.07766081392765045,
0.43963971734046936,
0.15327727794647217,
-0.7360512018203735,
0.5773773789405823,
0.16299580037593842,
-0.5257881283760071,
0.08229986578226... | |
1h3hvk | How do standing waves help explain the quantised energy states on an atom? | How exactly does this work? I've been scouring the internet for a definition that helps me as a year 12 (Senior) physics student... They are either too broad or too complicated!! | askscience | {
"a_id": [
"caqis7t",
"caqhklw",
"caqofh2"
],
"text": [
"Consider a string with both ends clamped in place. Now assume that something causes the string to begin to vibrate. Since both ends are clamped, the only wave motions that can be sustained on the string are those which have nodes at both en... | {
"url": []
} | {
"url": []
} | {
"url": []
} | How do standing waves help explain the quantised energy states on an atom?
How exactly does this work? I've been scouring the internet for a definition that helps me as a year 12 (Senior) physics student... They are either too broad or too complicated!! | [
0.1296139359474182,
-0.3243388533592224,
0.37993380427360535,
-0.5382832884788513,
-0.561529278755188,
-0.6635416746139526,
-0.3619334399700165,
-0.4908110201358795,
1.0079032182693481,
0.02533797360956669,
0.6147591471672058,
0.22498199343681335,
-0.1619054526090622,
0.566986620426178,
... | |
1opbjx | Can somebody explain Bell's Theorem using the "envelope" analogy? | Entanglement can be explained rather easily by saying $10 is split between two envelopes -- when you open up one, you'll immediately know how much is in the other (regardless of their distance).
How can one extend this analogy to adequately describe Bell's Theorem? | askscience | {
"a_id": [
"ccughn2"
],
"text": [
"Envelope analogies are what Bell's theorem are attempting to disprove, a local realism. They're the paradigm of classical physics: properties of the system are determined (realism), and information can't travel faster than light (locality). The prediction of how measure... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Can somebody explain Bell's Theorem using the "envelope" analogy?
Entanglement can be explained rather easily by saying $10 is split between two envelopes -- when you open up one, you'll immediately know how much is in the other (regardless of their distance). How can one extend this analogy to adequately describe Bell... | [
-0.8147661089897156,
-0.2416429966688156,
0.04323030263185501,
0.35078996419906616,
-0.20092657208442688,
-0.300548255443573,
-0.06529372185468674,
-0.6046004891395569,
0.8662845492362976,
-0.3945561349391937,
0.6245882511138916,
1.0250684022903442,
-0.7936004996299744,
-0.7517992854118347... | |
4ykif7 | How does STD Transmission work? | In recent months, I've become curious about how STD's such as HIV, gonorrhea, herpes, etc are transmitted between partners. Withholding transmission mediums such as IV needles and the like, how does STD transmission occur during sex? More specifically, why are some STD's (such as HIV) more likely to be transmitted via ... | askscience | {
"a_id": [
"d6ohjo9"
],
"text": [
"Infectious bacteria and viruses don't just infect \"the body\", but usually have specific body parts or cell types that they can survive and grow inside of. You can think of it similar to how animals can be the top predator in certain ecosystems but would be unable to s... | {
"url": []
} | {
"url": []
} | {
"url": []
} | How does STD Transmission work?
In recent months, I've become curious about how STD's such as HIV, gonorrhea, herpes, etc are transmitted between partners. Withholding transmission mediums such as IV needles and the like, how does STD transmission occur during sex? More specifically, why are some STD's (such as HIV) mo... | [
-0.18511326611042023,
-0.5942165851593018,
0.5576995015144348,
-0.5227528810501099,
-0.7715361714363098,
-0.7861760854721069,
0.3448680341243744,
-0.8927576541900635,
0.9234655499458313,
0.37190136313438416,
1.1141819953918457,
0.023444969207048416,
-1.063109278678894,
1.382537603378296,
... | |
tqxjg | Does anyone have information about "Phantom Hairs"? | Every now and then, I notice a hair growing out of my face, or neck, or ear, that is really long. So long that there is no chance I wouldn't have noticed it if it had been there for more than a day or two. They must have grown literally over night. I did some googling, and I think the phenomenon might be called "Pha... | askscience | {
"a_id": [
"c4oym9v"
],
"text": [
"> there is no chance I wouldn't have noticed it if it had been there for more than a day or two. They must have grown literally over night.\n\nYou're going to have to provide more support for that premise. Unless you frequently shave the area, it's far more plausible t... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Does anyone have information about "Phantom Hairs"?
Every now and then, I notice a hair growing out of my face, or neck, or ear, that is really long. So long that there is no chance I wouldn't have noticed it if it had been there for more than a day or two. They must have grown literally over night. I did some googling... | [
0.13323257863521576,
-0.9638919234275818,
1.7675466537475586,
0.0363282784819603,
-0.6374543309211731,
-0.1802634596824646,
-0.16141541302204132,
-1.1149369478225708,
0.7024487257003784,
0.6123403310775757,
1.2418723106384277,
0.20514971017837524,
0.033193860203027725,
0.8915397524833679,
... | |
129uvz | If I somehow tricked a boa constrictor into thinking I was dead, for how long could I survive it devouring me? | askscience | {
"a_id": [
"c6tc5m6"
],
"text": [
"The boa won't be tricked unless your body temperature drops."
],
"score": [
3
]
} | {
"url": []
} | {
"url": []
} | {
"url": []
} | If I somehow tricked a boa constrictor into thinking I was dead, for how long could I survive it devouring me?
| [
0.25498253107070923,
-0.5239722728729248,
0.7986713647842407,
-0.818050742149353,
-0.153190478682518,
0.22131220996379852,
0.2832072079181671,
-0.7661507725715637,
0.5643907189369202,
0.9448120594024658,
0.11087512969970703,
0.11011527478694916,
-0.5872132182121277,
0.3303198218345642,
0... | ||
32g968 | How did they detect Amino Acids in Sagittarius B2? | I'm just curious if someone could please break down how they did this. I understand that they were detected in the gas cloud by ALMA, but it just seems beyond me that it is capable of seeing something so tiny, so far away. Is the radiation emitted that strong, or is it just the fact that there is a lot of them? I'm so ... | askscience | {
"a_id": [
"cqbpc2j",
"cqbpk9y"
],
"text": [
"See [this recent post](_URL_0_). You're not seeing the molecules themselves, just the emitted radiation. There's a lot of them, enough so that the emitted light at specific wavelengths is detectable by ALMA.",
"Not amino acids, just hydrogen cyanide a... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.reddit.com/r/askscience/comments/32c7pm/how_can_the_alma_telescope_observe_presumably/"
]
} | How did they detect Amino Acids in Sagittarius B2?
I'm just curious if someone could please break down how they did this. I understand that they were detected in the gas cloud by ALMA, but it just seems beyond me that it is capable of seeing something so tiny, so far away. Is the radiation emitted that strong, or is it... | [
-0.3773096799850464,
-0.5448432564735413,
0.2748062312602997,
0.17903149127960205,
-0.6306040287017822,
-0.6204492449760437,
-0.10135281831026077,
-0.5899853706359863,
0.7996289134025574,
0.00009775906801223755,
0.9904420971870422,
0.22573992609977722,
-0.7026441693305969,
0.83894878625869... | |
trvj5 | Underwater Cave/Air Pocket/Breaching | What would happen if you had an underwater cave that had a large air pocket in it, which you then drilled down into, putting a hole in the ceiling of the caves air pocket, which opens into a large body of water?
I imagine the air would escape through the newly made hole, but how? If there is a torrent of water pushin... | askscience | {
"a_id": [
"c4p6pil",
"c4p6wfo"
],
"text": [
"Water would flow down, and the air would bubble up the newly drilled tube. There's nothing particularly unusual about the scenario you describe.",
"Not just a hypothetical: [Lake Peigneur drilling disaster](_URL_0_)."
],
"score": [
3,
2
... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.losapos.com/lakepeigneur"
]
} | Underwater Cave/Air Pocket/Breaching
What would happen if you had an underwater cave that had a large air pocket in it, which you then drilled down into, putting a hole in the ceiling of the caves air pocket, which opens into a large body of water? I imagine the air would escape through the newly made hole, but how? If... | [
0.20012469589710236,
-0.4251903295516968,
0.3139692544937134,
-0.4347054660320282,
-0.19326689839363098,
-0.9804613590240479,
0.7489534616470337,
-0.24402399361133575,
0.25506848096847534,
-0.3932128846645355,
0.2020462602376938,
0.4197758734226227,
-0.6820111274719238,
0.7071287631988525,... | |
adwe7f | Does the scaphoid consist entirely of cortical bone? | And if not, what other texture does it consist of?
Is there a known Poisson's ratio and Young's modulus for the scaphoid?
I'm trying to work it out for an orthopedics project and I haven't found an answer to it in the papers I've read so far. It might be because I'm at a German university and don't have access to all ... | askscience | {
"a_id": [
"edm1jzs"
],
"text": [
"You’ll need journal access for the exact numbers, but [this paper](_URL_0_) is a good breakdown of the bone types in human carpals (and metacarpals). Broadly, however, the answer is no...carpals, as with other “short bones”, are mostly trabecular bone with only a very t... | {
"url": []
} | {
"url": []
} | {
"url": [
"https://www.sciencedirect.com/science/article/pii/S0047248417304487?via%3Dihub",
"https://www.ncbi.nlm.nih.gov/m/pubmed/24323904/"
]
} | Does the scaphoid consist entirely of cortical bone?
And if not, what other texture does it consist of? Is there a known Poisson's ratio and Young's modulus for the scaphoid? I'm trying to work it out for an orthopedics project and I haven't found an answer to it in the papers I've read so far. It might be because I'm ... | [
-0.3531983494758606,
-0.40133461356163025,
0.41919639706611633,
0.017455333843827248,
-0.6036166548728943,
-0.19760264456272125,
0.42967742681503296,
-0.6860526204109192,
0.9633789658546448,
0.5001720786094666,
0.35300666093826294,
0.14983485639095306,
0.30528414249420166,
1.12586653232574... | |
44gr75 | What does almost surely mean in the statement of the law of large numbers? | [deleted] | askscience | {
"a_id": [
"czq41f0",
"czq38de"
],
"text": [
"So the law of large numbers (LLN) has a few versions. The one you mentioned is the strong law of large numbers (SLLN). There’s also a weak version (WLLN). The strong law of large numbers automatically implies the weak law, but the weak law is much simpler... | {
"url": []
} | {
"url": []
} | {
"url": []
} | What does almost surely mean in the statement of the law of large numbers?
[deleted] | [
-0.5095120668411255,
-0.21526877582073212,
0.6329047083854675,
-0.2152172029018402,
-0.13964684307575226,
-0.3371063470840454,
0.31808212399482727,
-0.022140225395560265,
-0.9644811749458313,
0.4615350365638733,
-0.1459900438785553,
0.6030982732772827,
-0.49538454413414,
-0.820657372474670... | |
22dyi8 | Why is Bragg's law empirically correct? | (worded as a question now).
In x-ray diffraction, Bragg's law states the relationship between the lattice spacing of a crystal and the wavelength and incidence angle of incident radiation to that crystal.
[Bragg's Law](_URL_0_)
I understand the proof of the law (it's just geometry), but I have a few question's about... | askscience | {
"a_id": [
"cgm0w60",
"cgm0m76",
"cgmb8j4"
],
"text": [
"These are all some of the best questions I've seen posted here in a long time, and I feel bad that I can't really give them as good a treatment as they deserve. I hope someone else can call me out on my bullshit below, because odds are good... | {
"url": []
} | {
"url": [
"http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/imgqua/bragglaw.gif"
]
} | {
"url": [
"http://upload.wikimedia.org/wikipedia/commons/2/26/Braggs_Law.svg",
"http://upload.wikimedia.org/wikipedia/commons/f/f6/Interfering_Electron_Wave_Packets_animated.gif",
"http://web.ornl.gov/sci/ortep/ortep.html",
"http://www.xtal.iqfr.csic.es/Cristalografia/index-en.html",
"http://www.... | Why is Bragg's law empirically correct?
(worded as a question now). In x-ray diffraction, Bragg's law states the relationship between the lattice spacing of a crystal and the wavelength and incidence angle of incident radiation to that crystal. [Bragg's Law](_URL_0_) I understand the proof of the law (it's just geometr... | [
0.15085074305534363,
-0.3855108916759491,
0.6921031475067139,
0.5659365653991699,
-0.8294232487678528,
-0.3881230056285858,
0.603503406047821,
-0.7044093608856201,
1.28854501247406,
-0.1966845989227295,
0.7208168506622314,
0.5637748837471008,
-0.5612555146217346,
0.21359504759311676,
-0.... | |
l6vnp | Does using antiperspirant really make you less attractive to the opposite sex? | I've heard several people state that cutting off the apocrine sweat glands in your armpits through antiperspirant use results in a dampening of pheromones/hormonal signals/etc that are normally released to communicate to members of the opposite sex, and can thus make it more difficult to "attract" mates; is this true, ... | askscience | {
"a_id": [
"c2qa45f"
],
"text": [
"You have sweat glands all over your body, those things just target the worse offenders.\n\nThere is no evidence that pheromones exist in humans. Hormones are something that works internally. I don't doubt that humans have smells and might have some effect, I'm being pic... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Does using antiperspirant really make you less attractive to the opposite sex?
I've heard several people state that cutting off the apocrine sweat glands in your armpits through antiperspirant use results in a dampening of pheromones/hormonal signals/etc that are normally released to communicate to members of the oppos... | [
-0.01128258928656578,
-0.2623918056488037,
0.8365066051483154,
-0.3681815266609192,
-0.9652576446533203,
0.13640104234218597,
-0.11529937386512756,
-1.339115858078003,
0.6395487189292908,
0.4253811538219452,
0.6089537143707275,
0.6025999784469604,
-0.8730530142784119,
0.43011921644210815,
... | |
2813qr | I am 20. What is the chance that I will see mylifespan increase significantly? | askscience | {
"a_id": [
"ci6ekhd"
],
"text": [
"The chances that you will see your lifespan increase significantly (years or more) right now are probably best realized by making sure you make healthy and not self-destructive lifestyle choices from here on out."
],
"score": [
2
]
} | {
"url": []
} | {
"url": []
} | {
"url": []
} | I am 20. What is the chance that I will see mylifespan increase significantly?
| [
0.1279360055923462,
-0.4226056635379791,
1.1169145107269287,
-1.3100563287734985,
-0.36104142665863037,
-0.40806102752685547,
-0.14605849981307983,
-0.6435931324958801,
-0.3801954388618469,
-0.24247433245182037,
0.5440710186958313,
0.31006956100463867,
-0.1643778532743454,
0.00601670285686... | ||
3ob78e | Could something like the ionocraft (The lifter) be upscaled into a vehicle? | Going back and re-watching old episodes of MythBusters there was an episode where they tried to debunk anti-gravity devices and one such device was the lifter which was proven to generate lift by ionizing air and forcing it downwards.
Could such a concept be upscaled into a vehicle of some sort? In my mind I envision ... | askscience | {
"a_id": [
"cvvozw1"
],
"text": [
"It would kind of be possible but not as you describe it. The biggest issue with electric propulsion and ion thrusters is that they need a lot of electrical energy to produce thrust. And so far we do not have light, high power electric generators. What a lot of people un... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Could something like the ionocraft (The lifter) be upscaled into a vehicle?
Going back and re-watching old episodes of MythBusters there was an episode where they tried to debunk anti-gravity devices and one such device was the lifter which was proven to generate lift by ionizing air and forcing it downwards. Could suc... | [
-0.39869678020477295,
-0.19658294320106506,
0.5806236267089844,
-0.8031713366508484,
-0.3986820876598358,
-0.380961537361145,
0.3173036277294159,
-0.5986027717590332,
0.765803337097168,
0.05604731664061546,
0.7826025485992432,
0.4100784361362457,
-0.8201889395713806,
0.03530290350317955,
... | |
c3xx9m | How does antiperspirant work? How was it discovered? | askscience | {
"a_id": [
"ervp4ik",
"erww11v"
],
"text": [
"Typical antiperspirants work by physically blocking the secretion of sweat. Most contain certain types of aluminum salts which diffuse into the sweat gland openings and, as they react with electrolytes in sweat, form a gel that temporarily plugs the gland... | {
"url": []
} | {
"url": []
} | {
"url": []
} | How does antiperspirant work? How was it discovered?
| [
-0.8281834721565247,
-0.8345416784286499,
-0.006477246526628733,
0.230791836977005,
-0.06749795377254486,
-0.7244605422019958,
0.9908285140991211,
-0.17134089767932892,
0.5350936055183411,
0.23676244914531708,
0.015891075134277344,
-0.21678535640239716,
-0.40257886052131653,
-0.03555572032... | ||
al7j2o | When hamsters run on a wheel, are they aware they are not actually going anywhere? | It is clear that hamsters and other small animals enjoy running on wheels or discs, but what is their drive behind it? Are they smart enough to realize they aren't moving? Is it purely instinctive or do they just find it fun? | askscience | {
"a_id": [
"efq7fgo"
],
"text": [
"From observing a lot of hamsters in my day I would say that they are just trying to get energy out. They're hyperactive little things and if they go more than a few minutes (while they're awake) without anything to do or eat, they'll get extremely stressed out and even ... | {
"url": []
} | {
"url": []
} | {
"url": []
} | When hamsters run on a wheel, are they aware they are not actually going anywhere?
It is clear that hamsters and other small animals enjoy running on wheels or discs, but what is their drive behind it? Are they smart enough to realize they aren't moving? Is it purely instinctive or do they just find it fun? | [
-0.6561883091926575,
0.001639294670894742,
0.6701159477233887,
0.3771328032016754,
-0.700494110584259,
-0.12988059222698212,
-0.30259254574775696,
-0.9696438312530518,
0.599531352519989,
1.0847870111465454,
0.9279922246932983,
0.6097819209098816,
-0.1319056898355484,
0.32770586013793945,
... | |
23tz8h | What compensates for the change in the momentum of an object held with optical tweezers? | I already know that optical tweezers work by refracting a laser beam into a narrow beam waist where it creates a small magnetic field. I also know that this then holds onto dielectric particles by way of that magnetic field, but what compensates for the change in the particle's momentum? I figured that the movement to ... | askscience | {
"a_id": [
"ch0qzxr"
],
"text": [
"Particles are attracted to the focal point due to the gradient of the electric field caused by focusing the laser light. This applies in all directions, not just sideways."
],
"score": [
3
]
} | {
"url": []
} | {
"url": []
} | {
"url": []
} | What compensates for the change in the momentum of an object held with optical tweezers?
I already know that optical tweezers work by refracting a laser beam into a narrow beam waist where it creates a small magnetic field. I also know that this then holds onto dielectric particles by way of that magnetic field, but wh... | [
-0.5453147888183594,
-0.19924776256084442,
1.3564075231552124,
0.13011297583580017,
-0.09340527653694153,
-0.7545802593231201,
0.16335219144821167,
-0.3364124596118927,
0.7831296324729919,
-0.08584489673376083,
0.9906901717185974,
0.599907636642456,
-0.9004861116409302,
0.11284282058477402... | |
2i07bq | My wife is normally a very rational and intelligent person, but today she was freaking out. She told me she read that "They use aborted babies in some vaccines." Is there any shred of truth to this at all? I would love a peer reviewreviewed article on the topic. | Oops. Slight spelling jumble in the title there. | askscience | {
"a_id": [
"ckxormj"
],
"text": [
"Several vaccines are prepared with human cell lines, and two of these cell lines were indeed derived from two fetuses that were aborted over 40 years ago, back before there were clear guidelines about use of such materials. No new fetuses are being used, and there are n... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.immunize.org/concerns/vaticandocument.htm"
]
} | My wife is normally a very rational and intelligent person, but today she was freaking out. She told me she read that "They use aborted babies in some vaccines." Is there any shred of truth to this at all? I would love a peer reviewreviewed article on the topic.
Oops. Slight spelling jumble in the title there. | [
-0.40233373641967773,
-0.6771155595779419,
0.5908125042915344,
-0.09852569550275803,
-1.098717451095581,
-0.934931218624115,
-0.6940516233444214,
-0.7395910620689392,
1.333543062210083,
0.4763292968273163,
0.8476086854934692,
0.34839752316474915,
0.1452026516199112,
1.3140981197357178,
-... | |
24gas6 | A few questions about periodic cicadas? | Periodic cicadas species are caracterised by a given periodicity (usually a prime number such as 13 or 17). This is their defining caracteristic and the basis for their reproductive strategy of unpredictable predator saturation. Yet, several species have multiple cohorts which co-exist more or less side by side. Each c... | askscience | {
"a_id": [
"ch6yva8"
],
"text": [
"1) The evolution of periodicity is still poorly understood. It is believed to begin as proto-periodicity in which a long-live species is much more abundant in some years than others (some cicada species still do this). Once this is established, selection may favor indi... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://hydrodictyon.eeb.uconn.edu/projects/cicada/resources/reprints/Williams%26Simon_1995.pdf"
]
} | A few questions about periodic cicadas?
Periodic cicadas species are caracterised by a given periodicity (usually a prime number such as 13 or 17). This is their defining caracteristic and the basis for their reproductive strategy of unpredictable predator saturation. Yet, several species have multiple cohorts which co... | [
-0.1231541559100151,
-0.5458536148071289,
0.6586574912071228,
-0.649127721786499,
-0.302955687046051,
-0.460074782371521,
0.33628496527671814,
-1.1539747714996338,
0.06573952734470367,
0.19641746580600739,
1.0006208419799805,
-0.04712921753525734,
-0.5045232772827148,
0.9986269474029541,
... | |
wrc5t | Found this butterfly in Kalimantan (Borneo), Indonesia. Is this a rare species? | _URL_0_
Specifically in the city of Berau. | askscience | {
"a_id": [
"c5fraom"
],
"text": [
"/r/whatsthisbug would be able to help you out."
],
"score": [
2
]
} | {
"url": []
} | {
"url": [
"http://imgur.com/agVj3"
]
} | {
"url": []
} | Found this butterfly in Kalimantan (Borneo), Indonesia. Is this a rare species?
_URL_0_ Specifically in the city of Berau. | [
-0.8997625708580017,
-1.0295675992965698,
-0.3113623857498169,
-0.43263518810272217,
-0.4272165298461914,
-0.44480058550834656,
0.5831199884414673,
-0.32784390449523926,
-0.3786841630935669,
0.3877613842487335,
1.3262609243392944,
-0.12343931198120117,
-0.823279082775116,
0.303915739059448... | |
z8nnu | What would a macroscopic sheet of layered cellular membranes feel like? | What color would it be? Would it be translucent? Would it tear or pop like a bubble? What if it was stitched together with transmembrane proteins or microtubules? How would cholesterol affect the appearance, texture and strength? If I had a button-sized transmembrane protein, would it be fixed in place, or could I move... | askscience | {
"a_id": [
"c637fr6"
],
"text": [
"DNA would be sticky since it's got a very large molecular weight. Same with ribosmones and proteins. You really couldn't have a handful, they need to be at the right concentrations of H2O and H+, but it would be adhesive.\n\nCellular membranes would be like some sort of... | {
"url": []
} | {
"url": []
} | {
"url": []
} | What would a macroscopic sheet of layered cellular membranes feel like?
What color would it be? Would it be translucent? Would it tear or pop like a bubble? What if it was stitched together with transmembrane proteins or microtubules? How would cholesterol affect the appearance, texture and strength? If I had a button-... | [
-0.5471182465553284,
-0.0016581937670707703,
1.233792781829834,
-0.5472251772880554,
-0.3114009499549866,
-0.13432791829109192,
0.30438217520713806,
-0.8867736458778381,
-0.30789491534233093,
-0.37623703479766846,
0.7961329221725464,
0.7346475720405579,
-1.5590850114822388,
0.4347643852233... | |
1oadr5 | Why is the Lagrangian such a special quantity? | Why is T - V so special. I understand why you would want the Hamiltonian, it is total energy. But where does the Lagrangian come from?
| askscience | {
"a_id": [
"ccq8908",
"ccq8tvd",
"ccq8eun",
"ccqbk2d",
"ccq8bgc",
"ccq8cue",
"ccq8gr5",
"ccqhsmb",
"ccqalp4",
"ccqalpg"
],
"text": [
"The Lagrangian and Hamiltonian differ only by a Legendre transformation. If you have one there is a straight forward way to get the oth... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Lagrangian_mechanics#Newton.27s_laws",
"http://www.ph.utexas.edu/~mwguthrie/t.lagrangian.pdf",
"http://en.wikipedia.org/wiki/Euler%E2%80%93Lagrange_equation",
"http://en.wikipedia.org/wiki/Hamilton%27s_principle"
]
} | Why is the Lagrangian such a special quantity?
Why is T - V so special. I understand why you would want the Hamiltonian, it is total energy. But where does the Lagrangian come from? | [
-0.1518259197473526,
-0.6044480204582214,
0.24648074805736542,
-0.05842063948512077,
-0.7644131779670715,
-0.9384918212890625,
0.3028058111667633,
-0.2927781641483307,
0.4475744962692261,
0.03117026574909687,
0.6687288284301758,
0.3037872016429901,
-1.219106674194336,
-0.017286574468016624... | |
y1bzy | Can one create a hierarchy of electrical conductivity? | First, I will say that I am a first time poster in /r/askscience, so if this post doesn't belong here, I apologize.
I was wondering if it would be at all possible to create a list of common metals and compounds in order of their electrical conductivity? If so, what units are used to measure electrical conductivity?
... | askscience | {
"a_id": [
"c5rffuj"
],
"text": [
"[Here](_URL_0_) is a standard list of commonly used conductors.\n\nAdditionally, it's not always as simple as just being a conductor or an insulator. **Semi-conductors** are complex/mixed compounds who's conductivity can change under certain conditions. \n\n**Siemens ... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.eddy-current.com/condres.htm"
]
} | Can one create a hierarchy of electrical conductivity?
First, I will say that I am a first time poster in /r/askscience, so if this post doesn't belong here, I apologize. I was wondering if it would be at all possible to create a list of common metals and compounds in order of their electrical conductivity? If so, what... | [
-0.23079925775527954,
-0.056820474565029144,
0.14224407076835632,
-0.6074691414833069,
-0.7867022752761841,
-0.5055414438247681,
0.3910627067089081,
-0.5555123686790466,
1.007636308670044,
0.16252538561820984,
-0.11754587292671204,
0.11599964648485184,
-0.5961101055145264,
0.23279081284999... | |
3v0rx5 | What should I include in my daughters science kit? | [removed] | askscience | {
"a_id": [
"cxjbaxi",
"cxjdn9h"
],
"text": [
"Always a pleasure to see efforts to forster early interests in science.\n\nIf you want to have an Earth Science section in there: \n\n* A good small 10x handlens, \n* A magnet,\n* a porcelain piece (for streaks)\n* Mohs hardness references (Steel nail, ca... | {
"url": []
} | {
"url": []
} | {
"url": [
"https://upload.wikimedia.org/wikipedia/commons/4/4e/Loupe-triplet-30x-0a.jpg",
"http://image.rakuten.co.jp/w-riv/cabinet/m-loupe-10bai.jpg",
"https://en.wikipedia.org/wiki/Stereo_microscope"
]
} | What should I include in my daughters science kit?
[removed] | [
-0.9808924198150635,
-0.09242002665996552,
0.7313774228096008,
-0.8874329328536987,
-0.4900560677051544,
-0.6583629846572876,
0.273681640625,
-0.30479031801223755,
-0.27245762944221497,
0.5369674563407898,
-0.25176867842674255,
0.5473669171333313,
-0.47709351778030396,
0.6730156540870667,
... | |
uhk9o | How long will the faces, etc. on Mount Rushmore last (assuming no human intervention)? | A few years back the feature known as [The Old Man of the Mountain](_URL_0_) in New Hampshire collapsed. A conversation about this with some kids over the past weekend brought the topic to mind.
The question assumes normal/commonly predictable weather patterns.
I am also thinking of the reactions of archaeologists at... | askscience | {
"a_id": [
"c4vicnk"
],
"text": [
"According to wikipedia, the granite that was carved for Mt Rushmore erodes at only 1 inch every 10,000 years. \n\nThe noses are 20 feet long, but I couldn't find a depth measurement. Somebody will have to take the math from here to figure out when the faces will become ... | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Old_Man_of_the_Mountain"
]
} | {
"url": []
} | How long will the faces, etc. on Mount Rushmore last (assuming no human intervention)?
A few years back the feature known as [The Old Man of the Mountain](_URL_0_) in New Hampshire collapsed. A conversation about this with some kids over the past weekend brought the topic to mind. The question assumes normal/commonly p... | [
0.20499172806739807,
-0.5247678160667419,
0.8338936567306519,
-1.0273206233978271,
0.3152955174446106,
-0.49615034461021423,
-0.04528576508164406,
-0.5436813831329346,
0.5207895636558533,
0.5866202116012573,
0.7307357788085938,
0.6946781277656555,
-0.14579908549785614,
1.398490071296692,
... | |
wm8bj | At what age does the prefrontal corext finish maturing? | I know when I was younger I was always told that it finished at the age of 21 but I remember hearing about a study that said that it was closer to 25. Could someone please provide me a good source for the actual age of maturation? | askscience | {
"a_id": [
"c5ej11c"
],
"text": [
"In medicine, I've seen it stated anywhere from 18-25. Truth be told, it differs from person to person and between sexes. Also, neuronal development/migration is dependent upon nutrient rich vs nutrient poor environments as well. Different sources will claim different... | {
"url": []
} | {
"url": []
} | {
"url": []
} | At what age does the prefrontal corext finish maturing?
I know when I was younger I was always told that it finished at the age of 21 but I remember hearing about a study that said that it was closer to 25. Could someone please provide me a good source for the actual age of maturation? | [
-0.24172234535217285,
-0.7445681691169739,
1.2933547496795654,
-1.1446733474731445,
0.006800768431276083,
-0.3826211094856262,
-0.10283899307250977,
-0.8935622572898865,
0.4659196734428406,
-0.11372313648462296,
1.1804471015930176,
0.04503259062767029,
0.734194278717041,
0.8198140859603882... | |
w2wl6 | LHC and time travel | askscience | {
"a_id": [
"c59r4sq"
],
"text": [
"[Searched](_URL_1_)\n\nRelevant [discussion](_URL_3_)\n\nOriginal question by [Bradical123](_URL_2_)\n\n > I mean they're traveling 99.999999etc% the speed of light. Isn't that what has to happen to time travel?\n\n > EDIT: by particle accelerator I was talking about th... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.reddit.com/user/Sleekery",
"http://www.reddit.com/r/askscience/search?q=lhc+time+travel&restrict_sr=on",
"http://www.reddit.com/user/Bradical123",
"http://www.reddit.com/r/askscience/comments/lw32o/do_the_particles_in_the_particle_accelerator_time/",
"http://www.wolframa... | LHC and time travel
| [
-0.935247004032135,
-0.4203031063079834,
0.8251294493675232,
-0.5696703195571899,
0.1259964257478714,
-0.5645712018013,
0.15181244909763336,
0.891551673412323,
0.13387084007263184,
-1.0589195489883423,
1.4191373586654663,
0.25599032640457153,
-0.020084191113710403,
0.28197553753852844,
0... | ||
1sbxa4 | Which flow type cools faster, Laminar or Turbulent? | If a copper rod is being cooled by a fan, and depending on its position it can experience both turbulent or Laminar flow, would the rod cool faster if the flow is more turbulent or laminar? The position the rod experiences laminar is closest to the cooling source, so intuitively this would cool faster, but experiment h... | askscience | {
"a_id": [
"cdw21i6"
],
"text": [
"Laminar flow provides heat transfer only through conduction because in laminar flow the air is flowing in sheets with little mixing between them. A way to visualize this is a deck of playing cards. The layer of air that touches the rod is heated. That layer also does n... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Which flow type cools faster, Laminar or Turbulent?
If a copper rod is being cooled by a fan, and depending on its position it can experience both turbulent or Laminar flow, would the rod cool faster if the flow is more turbulent or laminar? The position the rod experiences laminar is closest to the cooling source, so ... | [
-0.10705042630434036,
-0.2352670431137085,
0.7878246307373047,
-0.017305776476860046,
-0.4836173355579376,
-0.6482059955596924,
-0.15395517647266388,
-1.1328167915344238,
1.1135003566741943,
0.0017330743139609694,
1.005774736404419,
0.550654947757721,
-0.5212916135787964,
-0.29566717147827... | |
r6hn9 | How do you calculate the energy used to hold something in the air? | My big problem here is that obviously W=Fd doesn't work here. I understand that if some force were acting on the object it wouldn't generate any work since the object is stationary, but I'm talking about the specific situation where the object is a helicopter or something else of the kind, where you're using momentum t... | askscience | {
"a_id": [
"c43ahff",
"c43etc1",
"c43eafd",
"c43dfng"
],
"text": [
"I think that's a pretty common mental hurdle to go through- I had the same problem. You already know that W = F*d, so you know that W is not equal to F. Maybe you have to take a while to intuitively understand that.\n\nThe sc... | {
"url": []
} | {
"url": []
} | {
"url": []
} | How do you calculate the energy used to hold something in the air?
My big problem here is that obviously W=Fd doesn't work here. I understand that if some force were acting on the object it wouldn't generate any work since the object is stationary, but I'm talking about the specific situation where the object is a heli... | [
-0.30092889070510864,
-0.33913642168045044,
0.7134017944335938,
0.1973176747560501,
-0.8722514510154724,
-0.4927184581756592,
-0.046491846442222595,
-1.015484094619751,
0.7145147323608398,
0.2978813946247101,
1.04832923412323,
0.27103784680366516,
-0.24201692640781403,
-0.35901784896850586... | |
2fuj02 | Why are narwhal tusks always twisted counter-clockwise? | askscience | {
"a_id": [
"ckdmbet"
],
"text": [
"At first I thought this was going to be due to the fact that the vast majority of narwhals only retain the left tusk, but [this two-tusked specimen](_URL_0_) clearly shows both twisting the same direction, so I did some hunting. [This paper](_URL_2_) (paywall warning) s... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/File:Narwalschaedel.jpg",
"http://www.nature.com/nature/journal/v508/n7496/images_supplementary/nature13086-sf4.jpg",
"http://onlinelibrary.wiley.com/doi/10.1002/ar.20539/pdf",
"http://en.wikipedia.org/wiki/Hedgehog_signaling_pathway"
]
} | Why are narwhal tusks always twisted counter-clockwise?
| [
-1.0424013137817383,
-0.09174252301454544,
0.9120229482650757,
0.11390482634305954,
-0.5965218544006348,
-0.23898963630199432,
-0.21538539230823517,
0.5396644473075867,
0.3815314769744873,
0.7475611567497253,
1.3072909116744995,
-0.0858033299446106,
-0.3204250633716583,
0.7337989211082458,... | ||
lh1qm | Can somebody explain the Feynman Sprinkler? | I'm in a high school mechanics course, and we're discussing Newton's Laws. I had read online about the Feynman Sprinkler (a sprinkler-like device submerged in water and made to suck in the surrounding fluid) but have trouble understanding why it doesn't just stand still. | askscience | {
"a_id": [
"c2so5eu"
],
"text": [
"Insight: In extremely viscous fluid, if fluid is blown from a straw, it expands in all directions like nested expanding spheres. It looks just like the sucking/intake pattern, except flowing backwards instead of contracting nested spheres.\n\nAnd in non-viscous (invisc... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Can somebody explain the Feynman Sprinkler?
I'm in a high school mechanics course, and we're discussing Newton's Laws. I had read online about the Feynman Sprinkler (a sprinkler-like device submerged in water and made to suck in the surrounding fluid) but have trouble understanding why it doesn't just stand still. | [
-0.3342363238334656,
-0.4746180772781372,
0.3566725552082062,
0.06857921183109283,
-0.4332631528377533,
-0.597492516040802,
-0.08818672597408295,
-0.3846748173236847,
1.5933704376220703,
0.6175917387008667,
0.894635796546936,
0.35226911306381226,
0.022792020812630653,
0.7928893566131592,
... | |
1kwl3t | If I pushed a rod that was one light year long, would a person at the other end of the rod see it move at the same time I pushed the rod? | askscience | {
"a_id": [
"cbtc1tp",
"cbtc3rv"
],
"text": [
"The push will propogate at the speed of sound in the rod, which is (for a real rod) less than the speed of light.",
"A normal push is basically a sound wave and therefore bound to the speed of sound in the material.\n\nA shockwave can travel faster, b... | {
"url": []
} | {
"url": []
} | {
"url": []
} | If I pushed a rod that was one light year long, would a person at the other end of the rod see it move at the same time I pushed the rod?
| [
0.2041706144809723,
-0.7372432947158813,
1.0348987579345703,
-1.147735595703125,
-0.02641168236732483,
-0.2891933023929596,
0.07699479907751083,
-0.8611359000205994,
0.14917194843292236,
0.2897678017616272,
1.3541584014892578,
-0.41250860691070557,
-0.2564505338668823,
0.7076472640037537,
... | ||
1r734s | What is the most accurate measurement? | Hello askscience, I am a chemistry undergrad in an analytical/instrumental chem course, and just learned about one of my professor's research topics that is a method with detection limits theoretically in the parts per quadrillion, which got me thinking.
I was wondering: what is the most accurate measurement techniqu... | askscience | {
"a_id": [
"cdk98m9"
],
"text": [
"The quantity that is often cited as being the best measured is the magnetic moment of an electron (related to how an electron responds to magnetic fields). It is very close to two, and half the deviation from 2 has been measured as 0.00115965218073(28), where the bracke... | {
"url": []
} | {
"url": []
} | {
"url": []
} | What is the most accurate measurement?
Hello askscience, I am a chemistry undergrad in an analytical/instrumental chem course, and just learned about one of my professor's research topics that is a method with detection limits theoretically in the parts per quadrillion, which got me thinking. I was wondering: what is t... | [
-0.4294348955154419,
-0.24007758498191833,
0.7571964859962463,
-0.03670385107398033,
-0.3448110818862915,
-0.8283031582832336,
0.1632421463727951,
-0.7711383104324341,
1.807735562324524,
-0.2958067059516907,
0.6211287379264832,
0.3132598102092743,
0.05544073507189751,
0.9409717917442322,
... | |
291yat | What would happen if you held a plumb bob/line directly at earth's center? | askscience | {
"a_id": [
"cigmu8i",
"cigr6z5"
],
"text": [
"There's no net force of gravity at the center of the earth, so it would float freely, just as it would in space. More generally, for a spherically symmetric mass (which the earth is *very* nearly), the only force you'll feel at any location is the force o... | {
"url": []
} | {
"url": []
} | {
"url": []
} | What would happen if you held a plumb bob/line directly at earth's center?
| [
-0.9999480247497559,
0.19145025312900543,
0.10165554285049438,
-0.2618136703968048,
-0.358347088098526,
-0.7001741528511047,
-0.02615291438996792,
1.113842248916626,
0.059388041496276855,
-0.17277638614177704,
1.0494328737258911,
-0.055412180721759796,
-0.39602914452552795,
0.3868721425533... | ||
mmisn | How can we prove that the blue I see, is the same blue you see and not the red I see (or any other color I see) to you? | How do I know we are seeing the same colors since your blue may be my red? And if we can't prove it, do you think it is occurring?
| askscience | {
"a_id": [
"c3240c9"
],
"text": [
"This is a _very_ common question that pops up frequently. Please use the search function first.\n\n_URL_3_\n\n_URL_0_\n\n_URL_2_\n\n_URL_1_"
],
"score": [
4
]
} | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.reddit.com/r/askscience/comments/lwvep/how_can_we_be_sure_that_the_color_im_seeing_is/",
"http://www.reddit.com/r/askscience/comments/gunx5/seeing_colors_is_your_red_the_same_as_my_red/",
"http://www.reddit.com/r/askscience/comments/mfvnf/is_it_possible_that_when_you_see_a_certain_c... | How can we prove that the blue I see, is the same blue you see and not the red I see (or any other color I see) to you?
How do I know we are seeing the same colors since your blue may be my red? And if we can't prove it, do you think it is occurring? | [
0.06843657046556473,
-0.3024628758430481,
0.32598555088043213,
0.4482678472995758,
-0.49475163221359253,
0.38726282119750977,
0.8029247522354126,
-0.8669148683547974,
0.7708026766777039,
-0.043942082673311234,
0.394749253988266,
0.08936025202274323,
-1.2210452556610107,
0.3806757926940918,... | |
pej3n | Are these some intelligent formulas or just gibberish? (from the amazing spider-man - official trailer) XPOST from chemistry | _URL_0_ | askscience | {
"a_id": [
"c3oqhce"
],
"text": [
"I don't see anything that makes it seem like obvious gibberish. \n\n\nThe function is denoted with phi (the \"O\" with a superimposed \"I\") and is defined at the bottom. It is slightly fishy that the function's independent variable(s) are not listed (as in phi(x) or ph... | {
"url": []
} | {
"url": [
"http://imgur.com/a/yqNiO"
]
} | {
"url": []
} | Are these some intelligent formulas or just gibberish? (from the amazing spider-man - official trailer) XPOST from chemistry
_URL_0_ | [
-0.40220895409584045,
-0.2744772136211395,
0.948422372341156,
-0.3090202808380127,
-0.691693902015686,
-0.9056802988052368,
0.3325761556625366,
-0.08794442564249039,
1.000458002090454,
0.269426554441452,
0.6268470287322998,
0.19179074466228485,
-1.2614564895629883,
0.2496197372674942,
0.... | |
v7zkz | Are humans naturally predators, prey or scavengers? | I have a feeling that the answer here will be complex, but here is why I ask. When I studied anthropology, I was told that bipedalism likely came about in the African savannah, as we learned to get our heads up to avoid being preyed upon. We know that predatory animals, such as tigers, will target humans. My understa... | askscience | {
"a_id": [
"c52523r",
"c524nen"
],
"text": [
"We are naturally all of the above, with the qualification that humans don't really have the digestive equipment to scavenge long-dead corpses. But they certainly would have scavenged or stolen fairly fresh kills. Humans also hunted their own prey, and w... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Are humans naturally predators, prey or scavengers?
I have a feeling that the answer here will be complex, but here is why I ask. When I studied anthropology, I was told that bipedalism likely came about in the African savannah, as we learned to get our heads up to avoid being preyed upon. We know that predatory animal... | [
0.2648276090621948,
-0.3759945333003998,
0.5328501462936401,
-0.588171660900116,
-0.05093776807188988,
-0.1906873881816864,
0.7379640340805054,
-1.1149970293045044,
0.6719013452529907,
0.4692527949810028,
1.020366907119751,
0.5808866024017334,
-0.9745059013366699,
0.6743685603141785,
-0.... | |
ov64p | Diminishing returns on exercise. How big are we talking? | Exercise - how important is the "first hour"?
* 0 hours/week - > no benefit
* 1 hour/week - > X benefit
* 2 hours/week - > Y benefit
* 10 hours/week - > Z benefit
Let's define "benefit" in a broad sense - cardiovascular health, fat loss, muscle gain, mortality rate. If you can provide a more specific measurement ... | askscience | {
"a_id": [
"c3kbljo"
],
"text": [
"The first hour a week is far and away the most important, because it stimulates the metabolism and muscle growth of an otherwise unhealthy/unsporty person. Someone who works out regularly should not notice a positive effect of such an extend after each individual workou... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Diminishing returns on exercise. How big are we talking?
Exercise - how important is the "first hour"? * 0 hours/week - > no benefit * 1 hour/week - > X benefit * 2 hours/week - > Y benefit * 10 hours/week - > Z benefit Let's define "benefit" in a broad sense - cardiovascular health, fat loss, muscle gain, mortality ra... | [
-0.29730433225631714,
-0.5449061989784241,
1.1892842054367065,
-0.5834757089614868,
-0.38458943367004395,
-0.29740631580352783,
-0.4329351484775543,
-1.011205792427063,
-0.18735560774803162,
-0.06839949637651443,
0.5995351076126099,
0.7406365871429443,
-0.7039942145347595,
0.00476149749010... | |
3s08u3 | What is happening when a person is anemic? | I few years ago I spent two days in the hospital with malaria. I was throwing up and feeling weak so I went to urgent care. My hemoglobin had dropped to just 6.1 gm/dL (I was a 24M). The doctor was shocked that I was even walking and got me into a hospital bed as fast as possible. Anyway, what was actually happening to... | askscience | {
"a_id": [
"cwsuxnu",
"cwsxafj"
],
"text": [
"Haemoglobin is a protein that is found in red blood cells that carries oxygen. When you have low haemoglobin levels (of which there are many causes) you have less oxygen being picked up to be delivered to your cells. This is why you feel weak and tired.",... | {
"url": []
} | {
"url": []
} | {
"url": []
} | What is happening when a person is anemic?
I few years ago I spent two days in the hospital with malaria. I was throwing up and feeling weak so I went to urgent care. My hemoglobin had dropped to just 6.1 gm/dL (I was a 24M). The doctor was shocked that I was even walking and got me into a hospital bed as fast as possi... | [
-0.39485329389572144,
-1.0862880945205688,
0.5022519826889038,
-0.3877374529838562,
-0.6190881729125977,
-0.5513424277305603,
-0.3076007068157196,
-0.3110707700252533,
0.5143454670906067,
0.21075594425201416,
1.1373379230499268,
0.2999534010887146,
-0.1637938767671585,
1.5703178644180298,
... | |
mtj2b | How far away is a roadside "potalizer" test, and how might it work? | First, a bit of non-science background. I'm in favor of the legalization of cannabis with the fine folks over in r/Project420 (known as C:LEAR), but I realize that there are a LOT of obstacles that need to be overcome before legalization is a feasible option. The hurdle I'm researching now is THC testing from a law e... | askscience | {
"a_id": [
"c33rzl8",
"c33spbg",
"c33qdls",
"c33uird"
],
"text": [
"Here's some perspective from a former WA state deputy:\n\n In many states, DUI doesn't just mean alcohol. You could have had one too many Benadryls to control your allergies, and be too impaired to drive.\n\n When I saw someo... | {
"url": []
} | {
"url": []
} | {
"url": []
} | How far away is a roadside "potalizer" test, and how might it work?
First, a bit of non-science background. I'm in favor of the legalization of cannabis with the fine folks over in r/Project420 (known as C:LEAR), but I realize that there are a LOT of obstacles that need to be overcome before legalization is a feasible ... | [
-0.17849867045879364,
-0.4298275113105774,
0.580147385597229,
-0.5780348181724548,
-0.43224120140075684,
-0.9798578023910522,
-0.039531197398900986,
-1.268470048904419,
1.5186727046966553,
0.2927164137363434,
0.7859004139900208,
0.6825448274612427,
-0.908882737159729,
0.5723971128463745,
... | |
qi5kk | What causes genius burnout? | askscience | {
"a_id": [
"c3xt40q",
"c3xsw94"
],
"text": [
"In a psychology class I took, the professor said one contributing factor is that because of their intelligence levels, they do not relate well to others, view activities/people differently, and look down on most people as \"unintelligent\", focus on their... | {
"url": []
} | {
"url": []
} | {
"url": []
} | What causes genius burnout?
| [
-0.28605055809020996,
-0.38964489102363586,
0.4853987991809845,
-0.5711868405342102,
-0.2827012240886688,
-0.5850448608398438,
-0.07059195637702942,
0.47393161058425903,
0.3592192828655243,
0.26721805334091187,
0.5521999597549438,
0.5140087008476257,
-0.6744668483734131,
-0.303211241960525... | ||
1g3oym | Say a trustworthy friend claimed that he somehow traveled to the future and his only "proof" was a non-descript coin he picked up while visiting. You want to humor him. What scientific testing could be done on the coin to prove it was from the future? | askscience | {
"a_id": [
"caggx2e",
"cagfp8w"
],
"text": [
"Nearly everything in the world is contaminated from minute amounts of radioactive isotopes produced by nuclear testing. It makes it into everything, from paints to wines. By performing isotopic analysis, you can tell if a painting or wine was produced bef... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Say a trustworthy friend claimed that he somehow traveled to the future and his only "proof" was a non-descript coin he picked up while visiting. You want to humor him. What scientific testing could be done on the coin to prove it was from the future?
| [
-0.27672499418258667,
-0.4146101474761963,
0.5157075524330139,
-0.369682639837265,
0.23229677975177765,
-0.4757077395915985,
-0.13559268414974213,
-0.6879268288612366,
1.1284160614013672,
0.09539074450731277,
0.44702833890914917,
0.3444198668003082,
-0.11507117748260498,
0.8353853821754456... | ||
3lk90t | Inteligent reptile? | It's common to consider dolphines, crows, chimps, rats, goats, octuposes ext. as exeptionaly smart, in general or compared to their closest relitives (Caprinae, rodents, birds, mollusces...). Is there a reptile species that has some notable problem solving / creativity / learning skills?
| askscience | {
"a_id": [
"cv72dkc",
"cv73edw"
],
"text": [
"Monitor lizards are considered to be smart reptiles.\n\n > Varanid lizards are very intelligent, and some species can even count.[16] Careful studies feeding *V. albigularis* at the San Diego Zoo varying numbers of snails showed that they can distingu... | {
"url": []
} | {
"url": []
} | {
"url": [
"https://en.wikipedia.org/wiki/Komodo_dragon#In_captivity",
"https://en.wikipedia.org/wiki/Monitor_lizard#Intelligence",
"http://blogs.scientificamerican.com/blogs/cache/file/D49A2895-5593-480C-892F1A85AA44DF00.jpg",
"https://www.youtube.com/watch?v=p-zGIS-WWZQ",
"http://www.animalsbase... | Inteligent reptile?
It's common to consider dolphines, crows, chimps, rats, goats, octuposes ext. as exeptionaly smart, in general or compared to their closest relitives (Caprinae, rodents, birds, mollusces...). Is there a reptile species that has some notable problem solving / creativity / learning skills? | [
-0.458315908908844,
-0.44081243872642517,
0.7738931775093079,
0.36000409722328186,
-0.9568917155265808,
-0.027728203684091568,
0.05039018765091896,
-0.8889075517654419,
-0.023228004574775696,
-0.3635614812374115,
1.2810742855072021,
-0.0032317836303263903,
-0.884992241859436,
0.14752414822... | |
1bm6wi | Bone Makeup | I am interested in what bones are made up of | askscience | {
"a_id": [
"c97xegf"
],
"text": [
"> Bone itself consists mainly of collagen fibres and an inorganic bone mineral in the form of small crystals. In vivo bone (living bone in the body) contains between 10% and 20% water. Of its dry mass, approximately 60-70% is bone mineral. Most of the rest is collagen,... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.doitpoms.ac.uk/tlplib/bones/structure.php",
"https://www.google.com/search?q=composition+of+bones&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a"
]
} | Bone Makeup
I am interested in what bones are made up of | [
0.6290336847305298,
-0.18323026597499847,
1.2876008749008179,
-0.2889694571495056,
-0.13712342083454132,
-0.17607685923576355,
0.3587956130504608,
-0.5957403182983398,
0.3958253562450409,
-0.33017387986183167,
0.5364518761634827,
0.8052772283554077,
-0.9049425721168518,
0.1190345510840416,... | |
wtt5x | How realistic was the last episode of Breaking Bad? [MAGNETS!!] | Sorry for the crappy quality, but this is really the only video I could find that would give a brief background to what I'm talking about for those who don't watch the show.
_URL_0_
Basically, the main character gets a high powered magnet from a scrapyard, powers it with I believe 24 batteries, carries it in a truck,... | askscience | {
"a_id": [
"c5gec78"
],
"text": [
"It is not realistic at all.\n\nElectromagnets, outside of very specialized setups, are rarely more than [2 Tesla in strength](_URL_3_). For comparison the magnet in an MRI is around 1.5 - 3 Tesla in strength.\n\nI have worked around MRI machines and the safe distance f... | {
"url": []
} | {
"url": [
"http://www.youtube.com/watch?v=slWwuFclNwQ"
]
} | {
"url": [
"http://www.msnbc.msn.com/id/26663136/ns/technology_and_science-science/t/scientists-build-worlds-most-powerful-magnet/#.UAhQ46B_UdU",
"http://patientsafetyauthority.org/ADVISORIES/AdvisoryLibrary/2009/Mar6%281%29/PublishingImages/20_fig3.JPG",
"http://en.wikipedia.org/wiki/Orders_of_magnitude_... | How realistic was the last episode of Breaking Bad? [MAGNETS!!]
Sorry for the crappy quality, but this is really the only video I could find that would give a brief background to what I'm talking about for those who don't watch the show. _URL_0_ Basically, the main character gets a high powered magnet from a scrapyard,... | [
-0.012844905257225037,
-0.6965361833572388,
0.2242405265569687,
-0.20785951614379883,
-0.1754668802022934,
-0.45688197016716003,
-0.3870750963687897,
-0.5377475619316101,
0.3626762628555298,
0.6262962818145752,
0.8652271628379822,
0.17138434946537018,
-0.16047446429729462,
0.96557116508483... | |
mkkqg | A question for ichthyologists: Is it possible to strap on a saddle and harness on a great white shark and ride them? | Just a random thought, let's set some parameters.
[Here's the shark.](_URL_1_)
* The diver is on a full scuba suit, with enough oxygen for a 45 minute dive.
* Tranquilizers for the great white to strap on a harness and saddle for the diver. Whether they're much like a horse's or adjusted for a horizontal ride is dis... | askscience | {
"a_id": [
"c31rvpx",
"c31ovay",
"c31rkap"
],
"text": [
"Marine biologist here. In short answer, yes, there is no reason why you couldn't strap a harness on a Great White. But, I am also a life-long equestrian and the part we're missing here are the years of training that go into being able to ... | {
"url": []
} | {
"url": [
"http://imgur.com/RJvOl",
"http://gizmodo.com/5861460/this-photo-really-gives-a-perfect-idea-of-the-terrifying-size-of-a-white-shark"
]
} | {
"url": []
} | A question for ichthyologists: Is it possible to strap on a saddle and harness on a great white shark and ride them?
Just a random thought, let's set some parameters. [Here's the shark.](_URL_1_) * The diver is on a full scuba suit, with enough oxygen for a 45 minute dive. * Tranquilizers for the great white to strap o... | [
0.00048031285405158997,
-0.4992747902870178,
0.3585391640663147,
0.3613728880882263,
-0.8246872425079346,
-0.689716637134552,
-0.5656890869140625,
-0.5855879783630371,
1.5825287103652954,
0.061134014278650284,
0.807982325553894,
0.6516686081886292,
-1.1148124933242798,
0.08932757377624512,... | |
6j4l18 | Is the world getting windier? | askscience | {
"a_id": [
"djc35gz"
],
"text": [
"In Short: [yes](_URL_0_) \nThe winds are getting stronger, though it is more the extreme events that are getting stronger. rather than the \"normal\" winds that are getting stronger. \nThey also say that it is not necessarily climate change that is causing this though... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://science.sciencemag.org/content/332/6028/451.full"
]
} | Is the world getting windier?
| [
-0.9484255313873291,
-0.46236738562583923,
1.1769487857818604,
-0.6609705090522766,
-0.6623984575271606,
-0.4471564292907715,
-0.19934093952178955,
-0.4581378400325775,
0.09302154928445816,
-0.6544614434242249,
0.5887951254844666,
-0.0800226628780365,
0.021982379257678986,
-0.2257040888071... | ||
13v1zz | Arafat 210Polonium poisoning detection | Hello, today, they exhumed Yasser Arafat's body to test whether he died by polonium poisoning. I was wondering what tests would be performed to determine the cause of death.
By my calculations, the residual amount of Po should be nearly insignificant
[(10 mg polonium ingested (WAG))/(210 grams/mol)]*6.023e23 atoms/mo... | askscience | {
"a_id": [
"c77f6o3"
],
"text": [
"This is roughly 22 half-lives, so only 1 part in 4 million still remains. (I'm just leaving these numbers here because I was curious what they were)"
],
"score": [
2
]
} | {
"url": []
} | {
"url": []
} | {
"url": []
} | Arafat 210Polonium poisoning detection
Hello, today, they exhumed Yasser Arafat's body to test whether he died by polonium poisoning. I was wondering what tests would be performed to determine the cause of death. By my calculations, the residual amount of Po should be nearly insignificant [(10 mg polonium ingested (WAG... | [
-0.2269352525472641,
-0.8613900542259216,
0.5383061170578003,
-0.18372638523578644,
-0.22048014402389526,
-0.6795685887336731,
-0.4764188826084137,
-0.8101041316986084,
1.1642729043960571,
0.19710806012153625,
0.5378711223602295,
0.14902947843074799,
-1.1324050426483154,
0.574901819229126,... | |
tv57m | What is the difference between work and play in our heads? | Why is it that doing something like managing spread sheets is boring, and something like playing an MMO is engaging? Or that we hate to do menial factory work of repeating the same action over and over, but we like to play rhythm games like DDR etc.?
It seems like the approximately the same action, but working ten or... | askscience | {
"a_id": [
"c4q4f7e",
"c4q5xru",
"c4qartp",
"c4q5a7j"
],
"text": [
"\"Play\" activities generally have some sort of payoff that triggers a release of dopamine and endorphins in your brain. \"Work\" activities become a daily grind because you lose that payoff step through repetition. When you ... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Skinner_box",
"http://en.wikipedia.org/wiki/Man,_Play_and_Games",
"http://www.jstor.org/stable/10.1086/656576",
"http://users.ipfw.edu/abbott/314/Premack.html",
"http://mmrg.pbworks.com/f/Ryan,+Deci+00.pdf",
"http://onlinelibrary.wiley.com/doi/10.1111/j... | What is the difference between work and play in our heads?
Why is it that doing something like managing spread sheets is boring, and something like playing an MMO is engaging? Or that we hate to do menial factory work of repeating the same action over and over, but we like to play rhythm games like DDR etc.? It seems l... | [
0.44768381118774414,
-0.23779161274433136,
0.8713671565055847,
-0.4348912239074707,
-0.605108380317688,
-0.24933230876922607,
-0.7518579363822937,
-1.3829715251922607,
0.5296459197998047,
-0.08749587088823318,
0.8814734816551208,
0.6589263677597046,
-0.5146406292915344,
0.7672498822212219,... | |
2ysqe7 | Would it confuse your brain if you switched sides on your eyes? | I was curious how wired the brain is to seeing what it sees. Brain games talks about all the assumptions the brain makes. I started wondering what would happen if you switched them with special binoculars. So the right eye saw what the left normally sees and vice versa. | askscience | {
"a_id": [
"cpcn9oz"
],
"text": [
"If the input stayed consistent, then the [brain would probably adapt and correct](_URL_0_)."
],
"score": [
16
]
} | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.theguardian.com/education/2012/nov/12/improbable-research-seeing-upside-down"
]
} | Would it confuse your brain if you switched sides on your eyes?
I was curious how wired the brain is to seeing what it sees. Brain games talks about all the assumptions the brain makes. I started wondering what would happen if you switched them with special binoculars. So the right eye saw what the left normally sees a... | [
0.14932024478912354,
-0.6794936060905457,
1.0611178874969482,
0.2924805283546448,
-0.3914209306240082,
-0.22050392627716064,
0.3665306568145752,
-0.3600109815597534,
1.1297762393951416,
0.3265501856803894,
0.7180629372596741,
0.4883214235305786,
-1.272779107093811,
0.08864743262529373,
-... | |
27ak7y | Do Toadstool move by themselves? And do they obtain food from living things? | askscience | {
"a_id": [
"chz54cn"
],
"text": [
"The toadstool is only the fruiting body of the fungus. Most of the fungus is in the form of mycelium. You can think of the mycelium as the \"roots\" of the fungus. The mycelium is what is obtaining the food. Most fungi that produce toadstools are decay fungi and usu... | {
"url": []
} | {
"url": []
} | {
"url": []
} | Do Toadstool move by themselves? And do they obtain food from living things?
| [
-0.1808144897222519,
0.11838648468255997,
0.5122602581977844,
0.042206719517707825,
-0.31092458963394165,
-0.08479958027601242,
0.4258478581905365,
-0.4682227671146393,
0.19553497433662415,
0.6285812854766846,
0.3619660437107086,
0.9336109161376953,
-1.316027045249939,
-0.28256821632385254... | ||
msvbz | A friend of mine was trying to convince me that the neurological concepts in this were sound. Any neurologists out there? | _URL_0_ | askscience | {
"a_id": [
"c33ku3x"
],
"text": [
"I have never heard of this. [Pubmed](_URL_0_) has some articles on using vestibular rehabilitation to correct the _vestibular_ symptoms of concussion. I don't know a whole lot about vestibular rehabilitation (the specialist physical therapists do this), but I don't thin... | {
"url": []
} | {
"url": [
"http://watch.discoverychannel.ca/clip574738#clip574738"
]
} | {
"url": [
"http://www.ncbi.nlm.nih.gov/pubmed?term=vestibular%20rehabilitation%20concussion",
"http://www.carrickinstitute.org/CIAbout.asp"
]
} | A friend of mine was trying to convince me that the neurological concepts in this were sound. Any neurologists out there?
_URL_0_ | [
-0.3858143985271454,
-0.049263954162597656,
1.0957653522491455,
-0.13475781679153442,
-0.4025754928588867,
-0.42307913303375244,
0.49075937271118164,
-0.26021143794059753,
0.7280014157295227,
-0.28544628620147705,
0.582099199295044,
0.22409343719482422,
0.0309771616011858,
0.98619174957275... | |
177lq1 | Why don't we steal nature's designs more often? | askscience | {
"a_id": [
"c82ymbq"
],
"text": [
"You might want to change your tag to 'Engineering' instead of 'Physics'."
],
"score": [
2
]
} | {
"url": []
} | {
"url": []
} | {
"url": []
} | Why don't we steal nature's designs more often?
| [
-0.1375393569469452,
-0.24579878151416779,
0.4538418650627136,
-0.22724325954914093,
-0.7494780421257019,
-0.7090964913368225,
0.3706658184528351,
-0.5445918440818787,
0.6211509704589844,
0.9665320515632629,
0.32178109884262085,
0.6808043122291565,
-0.9496533274650574,
-0.09024406969547272... | ||
z2ia9 | Trying to remember a beautiful fluid dynamics problem and solution from my Uni days... | askscience | {
"a_id": [
"c60y1rb"
],
"text": [
"Right, well hopefully someone better informed will answer but for the moment I will add what I can. If it is a fluid mechanics problem no doubt Navier Stokes would have been used. Then what limits this set of equations to be solved ( I am assuming 1D or 2D as 3D gets hi... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.aem.umn.edu/people/faculty/joseph/archive/docs/956-aperture-old1.pdf"
]
} | Trying to remember a beautiful fluid dynamics problem and solution from my Uni days...
| [
-1.031012773513794,
-0.15560282766819,
0.8896894454956055,
-0.8212352991104126,
-0.13110288977622986,
-0.37659040093421936,
0.07053415477275848,
-0.3782865107059479,
1.20479416847229,
-0.6912826299667358,
1.419385313987732,
0.4252590239048004,
0.4986530840396881,
0.7988945245742798,
0.71... | ||
31kaz9 | What other things like seeing our nose and breathing we ignore by default? | askscience | {
"a_id": [
"cq2mgq8",
"cq35x4g",
"cq2o2kz"
],
"text": [
"We do this all the time with things that aren't changing in our environment. For example, when you first put your clothes on in the morning you feel them on your skin, but, very rapidly you stop noticing them. Now that you've read this, you... | {
"url": []
} | {
"url": []
} | {
"url": []
} | What other things like seeing our nose and breathing we ignore by default?
| [
0.23741240799427032,
0.140012726187706,
0.6303628087043762,
0.09351213276386261,
-0.23593342304229736,
-0.3364192545413971,
0.6814689040184021,
-0.31529563665390015,
-0.0019020577892661095,
0.3249230980873108,
0.4447057843208313,
1.0450496673583984,
-0.7037769556045532,
0.27526092529296875... | ||
1274w0 | Why are some pennies magnetic? | askscience | {
"a_id": [
"c6sqce5"
],
"text": [
"After 2000 they went from being mostly zinc (~98%) to mostly steel (~94%). [Source](_URL_0_)\n\nIt looks like just about all the different denominations did the same, so it might be possible to magnetize all of them."
],
"score": [
2
]
} | {
"url": []
} | {
"url": []
} | {
"url": [
"http://www.bcscta.ca/resources/hebden/chem/Coin%20Compositions.pdf"
]
} | Why are some pennies magnetic?
| [
-1.24362051486969,
-0.2567577660083771,
0.11773840337991714,
0.5346033573150635,
-0.03152889758348465,
-0.7176795601844788,
0.8923740386962891,
-0.17514924705028534,
-0.33223071694374084,
0.3202356696128845,
0.4835315942764282,
0.267289936542511,
-0.5203993320465088,
-0.828850269317627,
... | ||
19rdw6 | How reliable and accepted is the 'Triune brain' theory? It seems to pop up everywhere but it does not seem to be well accepted. Is it simply a nice, convenient idea that laymen get drawn too? | Thanks in advance | askscience | {
"a_id": [
"c8qre0y"
],
"text": [
"There are aspects of the triune brain model which are still accepted as useful and correct; but not all of the original formulation has survived extended study. See for instance [the Wikipedia article](_URL_0_), particularly the section \"Status of the Model\" for some ... | {
"url": []
} | {
"url": []
} | {
"url": [
"http://en.wikipedia.org/wiki/Triune_brain"
]
} | How reliable and accepted is the 'Triune brain' theory? It seems to pop up everywhere but it does not seem to be well accepted. Is it simply a nice, convenient idea that laymen get drawn too?
Thanks in advance | [
-0.46901705861091614,
-0.41027796268463135,
1.4554561376571655,
0.47912341356277466,
-0.9335737228393555,
-0.5814659595489502,
-0.5978733897209167,
-1.2053871154785156,
1.0393280982971191,
-0.08439581841230392,
0.37711435556411743,
0.22837163507938385,
0.0314575619995594,
0.155328392982482... | |
irou7 | How come no other animal has come scientifically across the mental Rubicon we have? And what scientific evidence can we have to prove no other animal has. | To think therefore I am. How come it seems we are the only animal to effectively cross that line of consciousness. To think about improving, settling down, moral decisions of the sort. Are we holding animals back from evolving by our practice of hunting and herding them?
Also, what scientific method is there to prove... | askscience | {
"a_id": [
"c263t93"
],
"text": [
"Well, first of all, it's pretty difficult to analyze the amount of consciousness another animal has, so I'm not sure there is an answer for you in that regard. Regarding stemming the evolution of other animals by overhunting: you are assuming here that evolution is goal... | {
"url": []
} | {
"url": []
} | {
"url": []
} | How come no other animal has come scientifically across the mental Rubicon we have? And what scientific evidence can we have to prove no other animal has.
To think therefore I am. How come it seems we are the only animal to effectively cross that line of consciousness. To think about improving, settling down, moral dec... | [
-0.16189655661582947,
-0.3704022467136383,
0.13570526242256165,
0.6672016382217407,
-0.2943778932094574,
-0.32681113481521606,
0.6665457487106323,
-1.2814817428588867,
1.1555511951446533,
0.7438899278640747,
0.837833046913147,
0.40362459421157837,
-1.268505573272705,
0.29138052463531494,
... | |
br9qmx | How would the result have changed if Pavlov linked the noise directly after the meal (fullness) opposed to before/during? | askscience | {
"a_id": [
"eoehhdf"
],
"text": [
"I would assume it would work similarly but with satiety (fullness) instead of hunger. We sort of see this in people when you eat a full small plate of food vs the same portion at least for the most part.\n_URL_0_\nWhile not completely backing this idea it would seem lik... | {
"url": []
} | {
"url": []
} | {
"url": [
"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5598018/"
]
} | How would the result have changed if Pavlov linked the noise directly after the meal (fullness) opposed to before/during?
| [
0.4240747392177582,
-0.09298166632652283,
-0.12247729301452637,
-0.6822037100791931,
-0.34407660365104675,
-0.14364001154899597,
0.4708901047706604,
-0.7965370416641235,
0.372628390789032,
0.5362006425857544,
0.10416495054960251,
1.1857997179031372,
-0.7206272482872009,
0.0983385518193245,... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.