q_id stringlengths 6 6 ⌀ | title stringlengths 3 546 | selftext stringlengths 0 4.44k ⌀ | category stringclasses 12 values | subreddit stringclasses 1 value | answers.a_id listlengths 1 489 ⌀ | answers.text listlengths 1 4 | answers.score listlengths 1 4 | answers.text_urls listlengths 1 489 ⌀ | title_urls listlengths 1 1 ⌀ | selftext_urls listlengths 1 1 ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|
64rtr5 | Do clouds move around the globe because of wind currents or does gravity have anything to do with it? | I've always wondered if clouds move solely because of wind or does gravity actually have anything to do with it? | Other | explainlikeimfive | [
"dg4hiov",
"dg4rans",
"dg4hiwm"
] | [
"Clouds move on the wind. Gravity has *something* to do with it, but only in that it is the force that prevents everything from just drifting off into space."
] | [
3
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] |
ajbhdm | Why military coups don't happen often in democracies? | Other | explainlikeimfive | [
"eeu5ju8"
] | [
"Dont happen as often... But authoritarian states are more likely to have coups since they relay heavily on both police and military (and many times a mix of both) to retain control, So In a democracy or a free state, the police is controlled in a civilian manner and the army has political and civilian oversight, w... | [
9
] | [
[]
] | [
"url"
] | [
"url"
] | |
npai2q | measuring neurotransmitters? | In our society today we can draw blood and determine what levels of certain things (vitamins or what not) people are low on, and then prescribe them things to make their levels “better”. When it comes to mental health/mental illness, why can’t we do something similar with our brain chemicals? Like somehow draw some brain fluid or something and see that this person is low on dopamine or serotonin and then prescribe accordingly? Wouldn’t that help the mental health community immensely? | Biology | explainlikeimfive | [
"h042kfj"
] | [
"It's difficult to measure neurotransmitters directly, since they are quickly metabolized. But we can measure their metabolites. For example, metanephrine is a metabolite of adrenaline, and homovanillic acid is a metabolite of dopamine. These can be measured in blood, urine and CSF (fluid drawn from the spinal cord... | [
5
] | [
[
"https://pubmed.ncbi.nlm.nih.gov/11287053/",
"https://pubmed.ncbi.nlm.nih.gov/7982867/"
]
] | [
"url"
] | [
"url"
] |
8qpx4t | Why are there other ingredients inside of water bottles instead of just purified water? | Chemistry | explainlikeimfive | [
"e0l4t9y"
] | [
"Natural spring water, and tap water from aquifers, contain many dissolved minerals. This gives water from different regions or different springs different taste. Pure distilled water tastes weird compared to water with dissolved minerals because all the water you'eve ever drank has been mineralized to some degree.... | [
5
] | [
[]
] | [
"url"
] | [
"url"
] | |
7wsezm | An antenna excites electrons to create radio waves. So, assuming you had an extremely powerful antenna, could you create different sorts of waves (such as visible light or gamma rays)? | Physics | explainlikeimfive | [
"du2tay6",
"du2u3n2"
] | [
"The modes by which electromagnetic waves interact with things are different, and they have to do principally with their wavelengths and their energies. But in a general sense, any machine which produces any kind of electromagnetic radiation could naively be called an antenna. It's just that the production method w... | [
6
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
e2ej4e | If certain hairs (like leg hairs) stop growing once they reach a certain length, why do they grow back if you trim them? | Biology | explainlikeimfive | [
"f8v1b9j",
"f8vgclu"
] | [
"They grow for a certain length *of time*. Let’s say they grow one centimeter in a month, and then fall out. You can trim them after 2 weeks and then it will continue growing for 2 more weeks prior to falling out again."
] | [
30
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
gmd4s4 | How does inflation really work? | Economics | explainlikeimfive | [
"fr2y2gt"
] | [
"Imagine you're shipwrecked on a deserted island. After figuring out the initial survival details, eventually you and the other survivors build a simple economy, using a bunch of monopoly money from a board game that washed ashore. As the coconut collector, you find and sell coconuts for a hundred dollars apiece. O... | [
10
] | [
[]
] | [
"url"
] | [
"url"
] | |
hcgq2f | What makes the lyrics in Bohemian Rhapsody so memorable? | Other | explainlikeimfive | [
"fvf0nfv",
"fvezz7c"
] | [
"The song has clear sections that sound distinct from each other, and each of those sections is fairly short with repetitions, rhymes, and/or clear imagery. So you've got the visual in your head, you're hearing the specific melody for that section of the song, and it's easier to memorize that part without conscious... | [
4
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
7x6vze | Why doesn’t Coke stain? | I have never had Coca-Cola stain. As a matter of fact, I used to actually pour a 20oz bottle into my work coveralls when I was in the Army to help remove grease stains. It was a tip I learned from someone else. So why did I never get Coke stains? And more importantly, why did Coke plus name brand detergent get all the grease out of my uniforms? | Chemistry | explainlikeimfive | [
"du63t5b"
] | [
"I don’t know what you’re talking about. I can tell you for a fact that coke stains. There are still stains on the carpet in my parents house that can prove that."
] | [
19
] | [
[]
] | [
"url"
] | [
"url"
] |
j958n8 | what is the square cube law and what does that have to do with us not being able to grow indefinitely? | Biology | explainlikeimfive | [
"g8hkfp6",
"g8hfkmj"
] | [
"For a cube with a side length of *a*, each square face will have an area *a x a* (or *a* squared) and the volume of the cube will be *a x a x a* (or *a* cubed.) So if you double the height of a creature, it's volume becomes 2 x 2 x 2 = 8 times larger! But the cross sectional area of any given bone will just be 2 x... | [
13
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
8slzpb | How come a large, inflatable ball which weighs no more than three pounds can knock an adult man flying five feet through the air? | We've all seen the videos. An inflatable ball, usually about two feet across, and full of nothing but air, hits a person at speed. Logically, the ball should bounce off harmlessly. Instead, the person gets fucking DECKED like he just ate a shotgun slug. Why? How? | Physics | explainlikeimfive | [
"e10gvkn",
"e10gsjd",
"e10h3r6"
] | [
"Take a uninflated balloon and roll it up into a small wad and throw it. Simple, right? Goes a decent distance. Blow the balloon up and try to throw it with the exact same amount of force you did with the uninflated balloon. It'll sort of float a bit then land at your feet. To get the balloon moving at the same spe... | [
17
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] |
5zr44z | What is inflation and why is it necessary for modern economies? | I've never really understood the idea of inflation, so thought I'd ask! | Economics | explainlikeimfive | [
"df0blof"
] | [
"We can produce wealth with time or resources. Let say you buy 1000$ and 2000$ of workers to build a mining equipment that you can sell for 5000$. You can created more wealth. What if the person that bought that equipment started to mine material and start to sell it. He also just created wealth. So now if you don'... | [
24
] | [
[]
] | [
"url"
] | [
"url"
] |
k5eag5 | Why are video games and DVDs region-locked? I get changing things that better appeal to different countries, but why region lock them? | Technology | explainlikeimfive | [
"gee7g5u",
"gee78tf"
] | [
"DVDs are priced to be profitable. This is a different number for everywhere DVDs are sold. So if I, a young and enterprising grifter, decided to buy thousands of DVDs where they are cheaper and having them sent over to me where I can sell them for cheaper than the price everyone else can offer, I'll make a killing... | [
16
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
atik8b | What is the difference between Firmware and Software? | Technology | explainlikeimfive | [
"eh17w5o"
] | [
"Firmware is a type of software. It's generally written to a memory chip on a piece of hardware, and controls how the hardware works. It's different from other types of software in that it usually isn't changed, it's integrated into that piece of hardware. Many devices have the capability to update the firmware, bu... | [
6
] | [
[]
] | [
"url"
] | [
"url"
] | |
h0hcfg | what is a singularity? | Physics | explainlikeimfive | [
"ftm2bjm"
] | [
"a point where your normal models become useless. usually it refers to black holes or neutron stars but it can also refer to the technological point where we get computers that are smarter than us and thus their power increases at rates we cant even imagine right now. and there's tons of other uses I'm sure. so you... | [
4
] | [
[]
] | [
"url"
] | [
"url"
] | |
ds91m0 | -How do you "lose stocks"? | I've been talking to people about investing and a lot of people say they "lost everything" during the recession. The way I understood investing, you gain a share of a certain company or market, and if the market crashed, and you kept your shares and just had to wait for the market to go back up to at least get the money back that you invested. How is it possible to lose all of your money without selling your shares in a panic while the market is down? EDIT: Thanks everyone! You all helped tremendously! | Economics | explainlikeimfive | [
"f6o1hwj",
"f6nzmy4",
"f6nzgx5",
"f6nzox4"
] | [
"There are two main ways to lose everything you invested: -The value of a share can go to $0 if a company goes out of business. -You're investing in options and derivatives that have 'leverage' built in. Leverage multiplies the potential gains, but it also multiplies the potential losses."
] | [
9
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] |
6pk9cf | Why do American cargo trucks have the engine sticking out in front of the driver whereas European trucks have the engine below the driver? | Engineering | explainlikeimfive | [
"dkpz7ao",
"dkpyn8k",
"dkpyqag"
] | [
"US laws have maximum trailer restrictions, EU has total length restrictions so it makes sense to have as short of a prime mover as possible so you can have a longer trailer."
] | [
9
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
bjza3d | how does new topsoil form on brand new land that's barren? | (e.g. barren island made by an undersea volcano later transforms into a fertile soil that springs forth a lush vegetation) | Other | explainlikeimfive | [
"emci78t",
"emdf9rv"
] | [
"The rock can get broken down by erosion (wind/rain/waves). Plant seeds/spores then get deposited by wind or animals (usually birds). If they land in the right place they will start to grow. The roots further break down the rock. When the plant dies, it will become part of the new soil. If there are animal colonies... | [
24
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
jmvgms | Why is there a fluctuation in the capacity of my bladder required to trigger the urge to pee? IE, why will I sometimes have to urgently pee and it's a relatively small pee when other times there is a considerably larger volume with a smaller urge? | Biology | explainlikeimfive | [
"gaxpsyg",
"gaxu0o9",
"gaxpn91",
"gay1vcm",
"gaygp4t",
"gay2zbl",
"gay7c13",
"gaycc98",
"gay40nb",
"gayn4gg",
"gaydevk",
"gayf5x3",
"gayeb0f",
"gaypnbo",
"gaxw4dw",
"gayg9f4",
"gayinjk",
"gayj6vz",
"gaybylc",
"gayr72l",
"gayqyox"
] | [
"Your bladder is made of a very stretchy type of tissue called transitional epithelium. It can change size rapidly to hold and release different amounts of urine. The bladder has stretch receptors in it, and when they detect the bladder getting full they send signals to your brain that it is time to pee. However, t... | [
7363
] | [
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
c99i53 | - How do hydrogen cars work? Are they better than electric cars? | Technology | explainlikeimfive | [
"esunivg",
"esuu4h9",
"esuxwl6"
] | [
"Hydrogen fuel cells use the difference in charge between hydrogen and oxygen ions which provides the electric power to drive an engine. URL_0 Better is a rather subjective term and it depends upon what you are measuring and what weight you give. The output of a hydrogen fuel cell is non polluting, but the generati... | [
14
] | [
[
"https://youtu.be/gh95X3Qb6zo"
],
[],
[]
] | [
"url"
] | [
"url"
] | |
d9y58q | Are the minutes between snoozing the alarm and getting out of bed more restful than regular sleep? | Biology | explainlikeimfive | [
"f1m3str",
"f1m1507",
"f1m2h1s"
] | [
"Well actually, I think it’s the opposite. When you go to sleep you enter the sleep cycle and you need to finish all stages to wake up rested. When your alarm goes off, and you hit snooze and go back to sleep, you actually start that cycle all over again and you certainly can’t finish it in 10-ish minutes. So, when... | [
7
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
9mz9cn | If Opioids were always prescribed by doctors, what caused an epidemic in the past few years? | Biology | explainlikeimfive | [
"e7iekfe",
"e7ifd8s",
"e7if008",
"e7idnk5",
"e7ig4ay",
"e7ig7sl"
] | [
"It’s very easy to get hooked on opioids but the drug companies said they were not that addictive. Doctors trusting the pharmaceutical companies prescribed them for pain management. People got hooked and once you’re an addict it’s hard to stop. Prescription drugs than become a black market commodity and flow into t... | [
14
] | [
[],
[],
[],
[],
[
"https://www.cnn.com/2016/05/12/health/opioid-addiction-history/index.html"
],
[]
] | [
"url"
] | [
"url"
] | |
d8skhy | what is air pressure? | 4.5 year old asked me how the weather 'casters know what the weather will do. We looked at weather maps and got into bands of high and low pressure, but that's where I ground to a halt. Do different temperatures cause the molecules to be more densely or loosely packed?? If so, packed in what? | Physics | explainlikeimfive | [
"f1cednx",
"f1cf0ti"
] | [
"> packed in what? Themselves! Know how when you dive under water the pressure on your eardrums the further down you go is because of water pressure. Way down at the deep end you have the weight of all of the water that is above you trying to push down and compact the water that is around you. Think of our atmosphe... | [
16
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
dobfmr | How does the fact that qubits can be both 0 and 1 at the same time allows for faster computations? | Physics | explainlikeimfive | [
"f5lwofs",
"f5lrvc9",
"f5lr9va"
] | [
"Quantum computer can evaluate combination of inputs. Let's say you have two people that say either yes (1) or no (0), and you have to decide whether they agree with each other. On classical computer, you ask the first one, then you ask the second one, then you compare the answers. You needed to ask **two times.** ... | [
14
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
817u9t | Why is it that when we work out it's easier to do the exercises with bad form and get injured? Shouldn't it be more difficult to move in a way that's bad for your body? | Biology | explainlikeimfive | [
"dv144ak",
"dv14vq8"
] | [
"Our body isn't evolved to do exercise the way we do today. What use does a caveman have for lifting a rock up and down repeatedly in two sets of 15 reps each? The problem is that modern life doesn't really lend itself to exercising the way our prehistoric ancestors would have (i.e. spend six hours persistence hunt... | [
5
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
juc30v | Why are most laser pointers red? | I know that red colors have the lowest wave lengths in the visible spectrum. How does that relate (or not) to the predominantly used red laser pointers? | Physics | explainlikeimfive | [
"gcb1oi7",
"gcb1fsf"
] | [
"Red solid state lasers using a red laser diode are super cheap to make and have very low complexity. Green lasers involve an IR laser shot through a crystal. The IR laser needs to have much greater power than the final green output and for safety you need to add an IR filter to prevent IR leakage. Blue lasers soli... | [
10
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
6zbto7 | If Saudi Arabia was a huge influence for 9/11, and most of the people involved in the plane hijacking were Saudi, why did we go after Iraq? | Other | explainlikeimfive | [
"dmu4829"
] | [
"Paul Wolfowitz and a lot of the other guys behind the Project for the New American Century had identified Iraq as a target for military intervention from day one of the Bush administration. As soon as those guys were in power, they were proposing invading Iraq. In order to understand why Iraq, you sort of need to ... | [
23
] | [
[]
] | [
"url"
] | [
"url"
] | |
73w7zp | why does our nose get stuffy when we lay down for the night but clear up when we are out and about? | Biology | explainlikeimfive | [
"dntmyc0",
"dntprbg"
] | [
"I believe it's primarily gravity. When you're standing up mucus can slide easily down your throat but when you lie down it can not. You also swallow less in your sleep and that compounds the problem."
] | [
4
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
6j333w | Why is -40 the same in both Celsius and Fahrenheit? | Mathematics | explainlikeimfive | [
"djb3h14",
"djb4a9y",
"djb3fzm"
] | [
"Both scales are linear measurements of the same phenomenon with a different intercept and slope. So they have to intersect *somewhere*. It just so happens that this intersection occurs at -40 degrees Celsius. In contrast, Kelvin and Celsius (or Rankine and Fahrenheit) don't intersect because they have the same slo... | [
18
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
bhmz59 | Are humans in first world countries still evolving through natural selection? | Biology | explainlikeimfive | [
"elu1xg9"
] | [
"Yes, but evolution may not look like what you think it looks like, particularly if you're using the term \"natural selection\" - a term which even Darwin wanted to discourage as it promoted a misunderstanding of evolution. People mutate. The vast, *vast* majority of these mutations are very bad and are called \"bi... | [
16
] | [
[]
] | [
"url"
] | [
"url"
] | |
iwkxa7 | Why are number two pencils the standard for school and tests as opposed to number one pencils or pen? | Other | explainlikeimfive | [
"g60s0nl"
] | [
"Because the device that scans the test to mark the answers correct or incorrect requires a dark enough mark to be able to see. In pencils, the higher number means lighter writing. So actually, a number 1 pencil should work just fine, but a number 3 or 4 or 5 would not be able to be picked up by the scanner. So the... | [
7
] | [
[]
] | [
"url"
] | [
"url"
] | |
k89jpf | If the USA gets universal healthcare, what happens to health insurance companies and their employees? | Economics | explainlikeimfive | [
"gewuipq"
] | [
"It's somewhat complicated, but you still need a lot of people to process all this stuff. Right now when you make a claim to your insurance, your provider (hospital, doctor, specialist, PT, psych, etc.) sends over info to the healthcare company, they figure out if they should pay for it or not, then they pay whatev... | [
3
] | [
[]
] | [
"url"
] | [
"url"
] | |
a1f1ro | How does flossing make your gums healthier/not bleed? | Biology | explainlikeimfive | [
"eap91tz",
"eapd6bq",
"eap9dw6",
"eap91up"
] | [
"Flossing makes them healthier because you remove food that sits on them essentially removing the exposure to foreign bacteria deposits. Over time they stop bleeding because just like most parts on your body, the tissue thickens due to adaptation."
] | [
15
] | [
[],
[],
[],
[
"https://www.ada.org/en/press-room/news-releases/2016-archive/august/statement-from-the-american-dental-association-about-interdental-cleaners"
]
] | [
"url"
] | [
"url"
] | |
5xgww9 | Why devil's advocate is a negative characteristic? | I am a Software Developer and after one meeting we had where we discussed some potential solutions to a technical problem I was called a devil's advocate. As not being English I had to Google to to understand what it means and from what I saw it has mostly negative description. Is it undesirable to discuss alternative solutions or try to critically address current assumptions instead of just agreeing with the very first solution purposed? Or do people just take things personally and don't like when counterarguments are presented? Trying to learn to improve myself. | Other | explainlikeimfive | [
"dehykon",
"dei4l1n",
"dehyg95",
"deia5do"
] | [
"It sounds like, for your situation, people just take things personally. Or they are saying you're arguing for the sake of arguing and you're not adding anything constructive to the situation. From my experience, \"Devil's advocate\" is usually something that a person calls their *own* argument, specifically when t... | [
12
] | [
[],
[
"http://thehill.com/homenews/media/320680-video-bill-maher-condoned-sex-between-35-year-old-woman-12-year-old-boy"
],
[],
[]
] | [
"url"
] | [
"url"
] |
5y6pr2 | How did they take the lead bullets out of hunted game and how do we make sure we've got all of them? | Nowadays i can sort of some fancy tech. But if say I were to hunt some deer with a blunderbuss in the mid 1800s, how would I make sure all that shrapnel isn't still somewhere in my venison? | Other | explainlikeimfive | [
"denlwgl",
"denm1vc",
"denn8nq"
] | [
"Usually if you are eating birds or animals killed by a shotgun you just have to spit out the shot whilst eating."
] | [
13
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] |
62gh6y | What happens if the president won the election due to foreign intervention? | Culture | explainlikeimfive | [
"dfmdx2l",
"dfmf21o"
] | [
"Russia parties down and said president gets closer to his claimed level of wealth. Meanwhile the other two branches of our government being controlled by republicans means everyone gets away scott free."
] | [
7
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
8j241l | Why is it possible to see something in the dark with your peripheral vision but not when staring directly at it? | Biology | explainlikeimfive | [
"dywd9g8",
"dywdd74"
] | [
"When you look directly at something, the light falls on your fovea, where the majority and highest density of cones are. Cones are the light sensing cells that recognize colour, and they don't function well in low light. What does function well are your rods, which exist at higher densities everywhere else in your... | [
7
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
693god | How does Duck Duck Go make money? | Economics | explainlikeimfive | [
"dh3fu7q",
"dh3g9r1"
] | [
"They do show you ads, just not tracking-targeted ones (and they give you the ability to opt out). Apparently they're also in some affiliate programmes, so they get a cut of revenue when people buy things they found via DDG - even though they don't track you, your browser provides a \"referrer\" field to the destin... | [
12
] | [
[
"https://duck.co/help/company/advertising-and-affiliates"
],
[]
] | [
"url"
] | [
"url"
] | |
8b3lsp | Why do video game companies such as Codemasters with their F1 series have such a difficult time with licenses? | So Codemasters have an official Formula 1 series since 2010 and I've read that they can't do certain things such as full body damage (other than front & rear wing) and classic content due to licensing. Why is this an issue? Why can't F1 give Codemasters full rights to make a game they want to make with no limitations? I know this doesn't only apply to Codemasters/F1 too. | Other | explainlikeimfive | [
"dx3psdx"
] | [
"I believe the limitation is only due to FIA wanting to maintain a certain level of, I dunno, public image? Safety is a major concern for FIA, both for the sake of saving pilots and not traumatising viewers (guess which more). There're no technical reasons for such limitations, just reputational. Think about it lik... | [
9
] | [
[]
] | [
"url"
] | [
"url"
] |
7lanhs | Why are physical businesses allowed to deny service to customers for any reason, but online services like Twitter or Facebook receive backlash for banning people with extreme views? | Other | explainlikeimfive | [
"drkrzxp",
"drkt5lh",
"drkrh44",
"drkrg4y",
"drks42k",
"drkuz3j",
"drkwzhb"
] | [
"Being legally allowed to do something does not mean that one is immune to criticism for that choice to do so. That's what freedom is all about - the ability to (within legality) do and say what you want - but also the responsibility of the consequences of those actions regardless of whether you think you deserve t... | [
496
] | [
[],
[],
[],
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
gil39y | What is the exact meaning of pH, acidity and alkalinity and how is it apply for things like the soil or shampoo | Thank you in advance, I've always been neglected in chemistry | Chemistry | explainlikeimfive | [
"fqf7npw",
"fqf7o6e"
] | [
"This is an inverse log scale of the concentration of positive hydrogen ions in a solution. Water is basically made up of H2O, but some of it is in the form of H+ and OH-. pH of 1 is 0.1 Molar hydrogen ions (H+) concentration (or amount) in the solution. pH of 7 is 0.0000001 Molar hydrogen ions in the solution....a... | [
6
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
kx7mo2 | How does selling goods and services abroad during an economic crysis helps the economy? | Economics | explainlikeimfive | [
"gj8tomh",
"gj8ijrj"
] | [
"A weakened currency makes your country's goods cheaper abroad. That increases demand for your goods. And if your country exports more goods, it brings more money from outside into your economy that goes to pay people who make/grow/extract those exports. Those people then spend money locally... the factory worker w... | [
3
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
eorck8 | What is the "repo market?" What is the current controversy surrounding the repo market? | Referenced here [ URL_0 ]( URL_0 ) | Economics | explainlikeimfive | [
"fef5l60"
] | [
"More like ELI15 but its the best I could do. Imagine a strip mall full of pawn shops. These pawn shops are operated by other banks. When a bank needs cash they can go to this strip mall, find the pawnbroker that is offering the best deal and pawn their stuff for cash. And just like a pawn broker they have the opti... | [
3
] | [
[]
] | [
"url"
] | [
"url"
] |
e1cq9b | What caused the Concorde to go under and is it likely to ever come back? | Engineering | explainlikeimfive | [
"f8o911o",
"f8o91jw",
"f8ocf8v",
"f8oapte",
"f8o9h1k",
"f8o9rz1"
] | [
"Noise and flight paths. Breaking the sound barrier is loud, as such the flight path had to be well outside a residential area before it could get up to speed. Basically it all just became too difficult and thus not economical."
] | [
13
] | [
[],
[],
[
"https://en.m.wikipedia.org/wiki/Air_France_Flight_4590"
],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
5uhdsn | Is my cold aching goosebumped body wanting to get cooler to fight the bug or make me seek warmth to raise my temperature? | A 'bug' has been going around at work and now I have it. It's not serious but I have full body aches and even worse, cannot feel warm very easily. My question is 'Is my body trying to lower my temperature or is it trying to make me lay on my electric blanket and under a duvet to raise it?' Either way trying to warm up feels best. What's happening? | Biology | explainlikeimfive | [
"ddtzo3o"
] | [
"Generally you get a fever when you are ill. this results in your body temperature being much warmer than the air temperature. you would then feel like the air around you is much colder than it actually is, thus you feel cold all the time, except when you are in an area that is as warm as your body. this is also th... | [
5
] | [
[]
] | [
"url"
] | [
"url"
] |
99hxy8 | Why does the stomach expand when the lungs are in the chest? | Biology | explainlikeimfive | [
"e4nssnt"
] | [
"When you breath, the diaphragm moves up and down as well. The \"stomach\" expanding is, more than likely, just the diaphragm."
] | [
3
] | [
[]
] | [
"url"
] | [
"url"
] | |
9jfqc6 | What's the difference between using (olive) oil or butter when baking (muffins or cookies)? | Was baking muffins and the recipe said " add 175 ml olive oil", which made me think what difference does it make compared to using butter? Does it change texture or something else or can you use either? | Chemistry | explainlikeimfive | [
"e6r5df5",
"e6r1qxj"
] | [
"Compare olive oil, or another oil, with butter or margarine. Oil: * has no water in it; it's 100% fat * has different kinds of fats compared to butter and dairy margarines - the saturated fats in milk taste \"richer\" * has no proteins, meaning it won't brown * has a different flavour (sometimes a neutral flavour,... | [
4
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
7yo43e | Why do ducks and some other birds fly in patterns? | Physics | explainlikeimfive | [
"duhxfrl",
"duhxgbr"
] | [
"V-shape formations are more aerodynamically efficient for the group. The air directly behind a wing is pushed downwards (called downwash), and the air behind and to the side of a wing is pushed upwards (upwash). This is due to the vorticies formed on the wing tips. Flying in the downwash is harder, and flying in t... | [
24
] | [
[
"https://imgur.com/a/D8SQc"
],
[]
] | [
"url"
] | [
"url"
] | |
6rpga3 | How award shows have footage of a live event that hasn't happened yet | Technology | explainlikeimfive | [
"dl6siba"
] | [
"They rehearse for live shows before they do them. Most of those clips are from those rehearsals, or previous events that the artists performed in."
] | [
3
] | [
[]
] | [
"url"
] | [
"url"
] | |
7oedhc | Why do body fluids and other substances glow brightly under a blacklight? | Chemistry | explainlikeimfive | [
"ds8vg1t",
"ds9kaju",
"ds9mos6",
"ds9vxpe",
"ds9j0a8",
"ds9vy6w"
] | [
"ELI5: They have proteins in them that fluoresce with UV light. For more detailed explanation URL_0"
] | [
2327
] | [
[
"https://www.reddit.com/r/askscience/comments/1tn7d7/why_does_semen_show_up_under_a_black_light/"
],
[],
[],
[
"https://www.amazon.com/dp/B00PBQV4HG/ref=cm_sw_r_cp_api_mOnuAbY9Z0YPZ"
],
[],
[]
] | [
"url"
] | [
"url"
] | |
jwuxzm | what happens when a pair of shears hits that creamy smooth glide-cut and what causes this? | Physics | explainlikeimfive | [
"gcsnvg4"
] | [
"The first thing that you need to understand is that when you use scissors in the open close motion, you're not really \"cutting\". You're tearing the paper. You're just doing it really really.... really precisely. Put a piece of paper on the edge of a desk. Hold it down with one hand and pull the part hanging off ... | [
113
] | [
[]
] | [
"url"
] | [
"url"
] | |
9bys3g | Why is it possible to 'feel' someone's presence without seeing seeing them or knowing they're there? | Other | explainlikeimfive | [
"e56rite"
] | [
"You usually aren't consciously aware of how your ears sense the space you are in. Someone entering a space will change the acoustic characteristics and alter the echo pattern of any noise you are making. Sometimes they will also subtly change the brightness over a large area, by occluding a bright surface such as ... | [
5
] | [
[]
] | [
"url"
] | [
"url"
] | |
70rljl | Why is it "life, liberty, and the pursuit of happiness" instead of just "life, liberty, and happiness"? What makes "the pursuit of" so important that it needs to be included? | Culture | explainlikeimfive | [
"dn5emd3",
"dn5eh4h",
"dn5eds7",
"dn5fbty"
] | [
"> What is the meaning of \"the pursuit of\" anyways? To \"pursue\" means \"To aim for, go after (a specified objective, situation etc.)\". So \"the pursuit of happiness\" means \"striving to reach a state of happiness\". > What difference does it make if it was left out, if any? To say that you are entitled of \"l... | [
27
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
5tx917 | How does absorbed light turn into heat? This makes no sense. | Heat is the movement of atoms in an object. I understand how a photon smacking it can speed up the atoms, but that doesn't answer the question of what happens to the photon. | Physics | explainlikeimfive | [
"ddppwsn",
"ddppu62"
] | [
"> Heat is the movement of atoms in an object. Actually, no, this is just the simplified version you were told in high school because the real definition of temperature is incredibly weird and requires a working understanding of the things that happen in the deep end of thermodynamics, which result in things like n... | [
9
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
g62evs | Why can the task manager stop lagging programs but we can't ? | Technology | explainlikeimfive | [
"fo6ysch"
] | [
"Because the Task Manager is very, very rude. When you click on the \"Quit\" button in an application, you are asking it nicely to clean up after itself and shut down. The application might say no - for example, it might say \"you haven't saved your file yet; do you want to do that before I quit? You might lose you... | [
19
] | [
[]
] | [
"url"
] | [
"url"
] | |
imn4o9 | How does a ceramic armor plate work? | I know alot of force is used to break it, but if you can break it just from dropping it how does a much harder hitting bullet stop? If i were to guess id say this.. Dropping makes a small crack that spreads on its own while a bullet makes the whole crack at once taking more force. Is this correct or is it something else? | Physics | explainlikeimfive | [
"g419wos",
"g41cizq",
"g41ax25",
"g41d7pz"
] | [
"They are supposed to break when hit by a bullet. The hardness of a material is not the same as its brittleness; ceramic may be brittle (it doesn't flex much before shattering) but it is a very hard material (it resists deformation). By shattering and crumbling, the force of the impact is absorbed into the material... | [
12
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] |
67rwhx | Why do drugs speed up or slow down your heart rate? | Biology | explainlikeimfive | [
"dgsv3bo"
] | [
"Simple explanation: The heart has numerous receptors to which different drugs bind and cause a response. Some drugs bind to the receptors that cause slowing of heart rate which decreases the workload on the heart. Muscarinic receptors in the heart work in this manner. Drugs like epinephrine bind to the receptors w... | [
3
] | [
[
"http://www.cvphysiology.com/Blood%20Pressure/BP010"
]
] | [
"url"
] | [
"url"
] | |
a68q3t | Why nails exist? | Biology | explainlikeimfive | [
"ebsvc5l",
"ebsxa2c"
] | [
"Like fingernails? They're vestigial claws, and still exist to protect the very sensitive skin around your fingertips and under the nails. Our evolutionary ancestors most likely used them to get through the skin of thick fruits before we invented tools to do that and rendered them mostly obsolete."
] | [
7
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
nixb2y | Why does carbon monoxide bind more easily to hemoglobin than oxygen? | Biology | explainlikeimfive | [
"gz4j2n0"
] | [
"The answer has a lot to do with the biochemistry of the **heme-pigment molecule** (the part of hemoglobin that carries oxygen) as well as the very sophisticated conditions within the bloodstream that change how heme behaves with respect to its binding affinities for oxygen -- in other words hemoglobin switches bac... | [
8
] | [
[]
] | [
"url"
] | [
"url"
] | |
5myhuc | How do we create saliva in our mouths and where does it come from? | Biology | explainlikeimfive | [
"dc7c74l"
] | [
"I don't have any reference materials, so I can't to much detail, but nobody else answered yet, so I'll do a summary. Saliva is a combo of mostly water and proteins with a little bit of dissolved salts. It comes from salivary glands that are placed in several places around your mouth. Mostly under the tongue. A gla... | [
4
] | [
[]
] | [
"url"
] | [
"url"
] | |
6ov6me | Why is it that medical doctors can deal with a single species(humans),veterinary doctors are(assumed?)able to deal with every other species? | Other | explainlikeimfive | [
"dkkfnk4",
"dkkfg1y",
"dkkgte8",
"dkkfkat",
"dkkipgb"
] | [
"Most veterinary doctors don't deal with all species, you most often go to a different doctor for your snake than your horse. Also vets tend to not go nearly as in depth as human doctors. People will do a lot for their pets but there is a lot less options for animal medicine than human medicine. Like animal organ t... | [
113
] | [
[],
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
gv5mgn | Why does a medical doctor often tests the knee for reflexes? What is it really testing for ? Surely not that single area for a single purpose (reflex). What am I missing? | Biology | explainlikeimfive | [
"fsmjlem",
"fsmjtpp",
"fsmjcwz",
"fsml5ss",
"fsmm4j7",
"fsngirx"
] | [
"They check your reflexes because it part of a neurological test. A lack of reflex could indicate spinal injury, muscle degredation, and neuromuscular disease."
] | [
511
] | [
[],
[],
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
94pbm2 | Why is it there are seldom daughters named after mothers, but sons named after fathers (Jr.) are fairly common? | Culture | explainlikeimfive | [
"e3mqotq"
] | [
"I mean, I’m no expert here but I imagine for the same reason that women historically have taken husband’s names, sons have been more important in a family than daughters, etc... families have historically been patriarchal in much of the world. Dads and sons represented and were breadwinners of the family, while mo... | [
5
] | [
[]
] | [
"url"
] | [
"url"
] | |
bhg5q7 | In colorblindness, the cone cells are messed up. But what happens if your rod cells are messed up? What does that look like? What is that called? | Biology | explainlikeimfive | [
"elsmaim",
"elsn4qj",
"elspwd6",
"elsygsa"
] | [
"If your rod cells are messed up then you don't have color blindness, you can have just \"blindness\". It doesn't look like much from all accounts."
] | [
14
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
mhscc8 | What happens biologically when someone has auditory hallucinations? | Asking from personal experiences of it. | Biology | explainlikeimfive | [
"gt0lwls"
] | [
"Basically, when you hear, see or otherwise sense something your brain receives a signal from your ears/eyes/whatever, analyzes it and makes a conclusion like \"Oh, it's someone saying hello\". But the brain is a very complex and convoluted system with many ways for things to go wrong. If something jams somewhere, ... | [
5
] | [
[]
] | [
"url"
] | [
"url"
] |
d89je3 | why is it that light can travel for a billion years across the universe, but as soon as you flick off a light switch it disappears instantly? | Physics | explainlikeimfive | [
"f18lv3w",
"f18kjbq",
"f18lanh",
"f18lsyl",
"f18ldih"
] | [
"The second part is your real question, you are wondering why the light disappears instead of bouncing around in the room. The answer is that it does bounce around in the room, it is just that it bounces around so fast that it is absorbed effectively instantaneously. Material absorbs light, the less light it absorb... | [
45
] | [
[],
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
avkynj | Did T.V stations back then used to play the national anthem then cut to static? If so, why? | Technology | explainlikeimfive | [
"ehfwhu5",
"ehg46gs",
"ehfwuq8",
"ehfwaab",
"ehfwlau",
"ehg9ejo"
] | [
"In the past, TV networks didn’t have enough cone to to broadcast 24 hours. So at a certain point it would just cut off broadcasting. Different stations had different ways to signal the end of the broadcast. I’m not sure if any ending with national anthem, most started that way though. Following the ending of their... | [
20
] | [
[],
[
"https://youtu.be/Im9fe4a6bcg"
],
[],
[
"https://www.youtube.com/watch?v=xdvZim2-mNk"
],
[],
[]
] | [
"url"
] | [
"url"
] | |
6qxp2h | Will we ever be able to prevent natural disasters such as earthquakes, volcanic eruptions, tsunamis, etc.? | Biology | explainlikeimfive | [
"dl0w64c"
] | [
"We can prevent some of the damage from the event, mostly by expanding communications so that a Tsunami Warning, for example, can be forwarded to the countries in its path. It is only this last decade which has seen Tsunami Warning systems begin operating in the entire Pacific Basin. These kinds of multi-national e... | [
3
] | [
[]
] | [
"url"
] | [
"url"
] | |
5y9fwv | If nobody emigrated anywhere for the rest of time, would people in North America become more Native American looking, people in Europe become more "European" looking, etc? | Biology | explainlikeimfive | [
"deo8jn1",
"deo8dh0",
"deobkpv"
] | [
"Quite possibly. History has several examples of this happening. For example, Australian Aborigines look *very* different from most other people. For another example, Europeans (and their descendants) with their pale coloring look *very* different from nearly all other people (with their brown coloring)."
] | [
5
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
ksw6vv | So what is energy? In simplest terms please. (science definition) | So what is energy? In simplest terms please. I find what is most helpful if you explain it like I'm 5 years old, then explain it like i am 12. then explain it like i am an adult. History shows that is the fastest way for me to learn. | Physics | explainlikeimfive | [
"giii6li",
"giil64r",
"giixvbe"
] | [
"Energy is the capacity to do work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms. There are, moreover, heat and work—i.e., energy in the process of transfer from one body to another. After it has been transferred, energy is always designated according to its nat... | [
4
] | [
[
"https://www.britannica.com/science/energy"
],
[],
[]
] | [
"url"
] | [
"url"
] |
njel3h | Why do we mainly see road kill or the occasional pile of bones in the woods while hiking? Why isn’t there more dead animal carcasses just lying around everywhere? Where do animals go to die? | Biology | explainlikeimfive | [
"gz6wwfs",
"gz6x91u",
"gz6x58j",
"gz6wtd2"
] | [
"Small ones end up in predators. Bigger ones end up in scavengers once dead. Corpse will seldom stay intact for long so you have bones here and there. Bones decay slow but alot of small rodents even gnaw bones for easy calcium. Also big scavengers and predators break up bones. Not to forget, woods are usually big a... | [
8
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
9no5pv | How do computers store information? And why is there an integer limit in computing? | Technology | explainlikeimfive | [
"e7nx34x",
"e7nr47r",
"e7nsdez"
] | [
"You don't need to know binary to understand this. You do need to understand two things, though: 1. Digits. Each number requires a certain number of digits. 545 requires 3 digits. 384271 requires 6 digits. Yes, computers use a different numbering system (binary) and will therefore require different numbers of digit... | [
6
] | [
[
"https://en.wikipedia.org/wiki/Arbitrary-precision_arithmetic"
],
[
"http://sticksandstones.kstrom.com/appen.html"
],
[]
] | [
"url"
] | [
"url"
] | |
5pzc4d | People in rural America claim that guns are necessary for their way of life. How do rural residents of countries with stricter gun laws get by? | Culture | explainlikeimfive | [
"dcv0t0c",
"dcv1e03",
"dcv1t51",
"dcv8eof",
"dcvadfr",
"dcvmgju",
"dcven68"
] | [
"So, the only place where this really is the case is Europe. Europe has no predators or other large and dangerous animals; they've all been killed off over the millennia of humans living there. By comparison, North America has wolves, bears, mountain lions, moose, bison, and elk, all of which can cause pretty exten... | [
146
] | [
[],
[],
[
"http://www.police.nsw.gov.au/services/firearms/permits/firearms_permits"
],
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
8996cu | Why are the Chinese tariffs a big deal? | Economics | explainlikeimfive | [
"dwpmqpv",
"dwptwye",
"dwq5it4"
] | [
"Its only a big deal because the US imposed tariffs recently so China is retaliating. Its absolutely, 100% expected in every way (if someone imposes tariffs on you, you almost always strike back with tariffs of your own), its just a big deal because tariffs can significantly effect certain parts of a country's econ... | [
5
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
a1d53s | Why when I’m loading something does the last 2 percent always take the longest? | For example, if I’m loading a video on Netflix the first 98% seems to load in about 3 seconds, but it takes like 10 seconds or longer sometimes to load the last 2%. Makes me feel like it’s not really 98% loaded... is it some sort of placebo effect? | Technology | explainlikeimfive | [
"eaosht9",
"eaosbyo",
"eap2mjp"
] | [
"I can't speak for Netflix but when it comes to computer programs where you often see this sort of thing happen while installing or downloading stuff, it's because there's really two different tasks going on inside your machine. The first task your device does is \"retrieving the file\". To do that, your computer o... | [
13
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] |
k7ju3x | Why is diplomatic immunity a thing? | Other | explainlikeimfive | [
"gerdoi1"
] | [
"We don’t want a foreign nation abusing our diplomats and in exchange we promise to not abuse their diplomats. This goes so far as to make diplomats immune from prosecution unless their country gives permission. And typically, permission is granted if the diplomat abuses this privilege."
] | [
8
] | [
[]
] | [
"url"
] | [
"url"
] | |
o5tx7j | On why lumber prices are as high as they are | I don’t understand it, why are prices high? I can understand a few dollar markup due to the summer weather but 100’s of percent upcharge seems a little much. There doesn’t appear to be any less lumber around or a shortage according to my carpenter friends. Well prices stay like this? I would like to do some projects by myself but prices seem out of range | Economics | explainlikeimfive | [
"h2oj4ym",
"h2oivek",
"h2or6av",
"h2om0m5"
] | [
"Lumber industry was shut down temporarily, slowed by COVID--in part due to expected reduced demand in the early days and also due to COVID safety protocols, etc. And then instead of a reduction in demand, there was a surge as people wanted to buy bigger homes, wanted to remodel, wanted to build decks and swingsets... | [
15
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] |
6e9fi5 | Why is it possible for weeds to thrive in so many different settings, but flowers like roses require constant nurturing? | Other | explainlikeimfive | [
"di8lmb9"
] | [
"Weeds have developed to be able to grow under diverse settings, while flowers have been cultivated to the point they can only grow in certain conditions. Plus, you have to remember the difference between a 'weed' and a 'flower' is \"Do I want that growing there?\" So while you might mean dandelions when you say we... | [
5
] | [
[]
] | [
"url"
] | [
"url"
] | |
5sd7qs | What are Active Directory Sites and Services | Technology | explainlikeimfive | [
"dde7epi"
] | [
"Microsoft Active Directory is a role you can install on Microsoft Windows Servers to help you create a unified rights and login infrastructure across several windows computers and applications. To explain the above a bit more in depth. You have probably a computer at home and may even be sitting in front of one as... | [
4
] | [
[]
] | [
"url"
] | [
"url"
] | |
i66ttz | What causes apples to go brown when bruised? | Biology | explainlikeimfive | [
"g0twd4z"
] | [
"Damage to the tissues and exposure to air releases an enzyme that oxidises certain compounds in the flesh, turning them into brown compounds. The chemicals affected are called polyphenols and the enzyme that causes the oxidaton is called (not surprisingly) polyphenol oxidase."
] | [
3
] | [
[]
] | [
"url"
] | [
"url"
] | |
ih2zlb | Where do deleted files go? | Technology | explainlikeimfive | [
"g2xh6e1",
"g2xh6pi"
] | [
"Effectively nowhere. When you delete a file, it simply writes over the \"Header\" which is a piece of information that tells the computer what the file is named, where it is located, how big it is, what format it is... etc. So once you delete that header, all the data still remains in the same place it was, it jus... | [
9
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
koxpu3 | Why is the sun yellow/red/orange but the hottest flame is blue. | My (19F) brother (11) has autism and wants to know why the blue flame that is shown on Bunsen burners is hotter then a yellow safety flame. My mums got involved in the debate but she doesn't know either lol. We said blues the hottest but he said the sun is yellow therefore the safety flame is the hottest. | Physics | explainlikeimfive | [
"ghtvk4p",
"ghtzwii",
"ghtup8x",
"ghtrvt9",
"ghtuy0e",
"ghtx6d1"
] | [
"Hot objects do glow, and they'll generally start red and move up through yellow towards white but you'll never really get something to blue because that's not how black body radiation curves work. The sun is basically white because its surface(where the light is made) is at just 5800 Kelvin which is why \"Cool Whi... | [
127
] | [
[],
[
"https://www.discovermagazine.com/the-sciences/massive-blue-supergiant-challenges-theory-of-how-big-a-star-can-be"
],
[
"https://www2.lbl.gov/Science-Articles/Archive/sb/Aug-2004/reflectance_wavelength.jpg"
],
[],
[
"https://youtu.be/vVE0B6g9F_0"
],
[]
] | [
"url"
] | [
"url"
] |
d01phf | Why do our eyes get puffy the next morning after crying the night before? | Biology | explainlikeimfive | [
"ez5rwkx"
] | [
"When your eyes water, the tears that you see are the very same ones that keep our eyes moist and comfortable, and wash out bits of dust and debris. Those basic tear secretions are produced in the conjunctiva, the membrane that coats the entire surface of the eye. These basic secretions don’t overflow like the tear... | [
5
] | [
[]
] | [
"url"
] | [
"url"
] | |
fal6dp | What is the hype surrounding 3D printing food? | Don't you need food to 3D print the food? It seems like all the hype shows that we can just make all of these magical foods out of thin air. For example, when 3D printing with plastic, you still need the plastic strings(?) to make layers that form the shape. | Technology | explainlikeimfive | [
"fiyttzx",
"fiyxd0p"
] | [
"3d printing food doesnt work by miceing up food to be printed. Instead, meat is syntetically grown to be 3d printed. Thats why its more interesting."
] | [
4
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
90jd9x | I live in the US and everytime I pass a weigh station on the highway, they are always closed. Is there a reason to this (only open at night?) or is my luck just that bad? | Other | explainlikeimfive | [
"e2qvgy3",
"e2qxyic",
"e2qw90g",
"e2qux3i"
] | [
"The stations are opened \"randomly\" and big rig trucks are forced off the highway and into the weight station. To be weighed and check over the log book for compliance. It doesn't happen often though because it can cause serious delays."
] | [
19
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
i24yzl | How did companies recover when they were partially or fully destroyed by the events of 9/11? | Economics | explainlikeimfive | [
"g01uh8t",
"g01uuj1"
] | [
"The story of Cantor Fitzgerald is probably the most well known, detailed here: URL_0 The short version is basically that 2001 was far enough into the establishment of the internet that multi-office companies were often able to lean on their other offices to keep the ship afloat."
] | [
6
] | [
[
"https://www.standard.co.uk/news/cantor-fitzgerald-the-city-firm-that-rose-from-the-911-ashes-6441839.html"
],
[]
] | [
"url"
] | [
"url"
] | |
6te7jk | Why is hot water a bit white when it comes out of a tap ? | Repost | explainlikeimfive | [
"dlk0ksq",
"dlk0kdf"
] | [
"Dissolved air bubbles. When pour a glass of hit water, it often has air trapped in it. If you pour more slowly, or let it settle, you'll see the water looks clearer. Small air bubbles appear white because they contain many reflections of the environment."
] | [
11
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
9q388l | Why have we not been able to domesticate large breed felines ( lions, tigers etc.) like we have with large breed canines ( Mastiffs, St. Bernards etc.)? | Biology | explainlikeimfive | [
"e8696iz",
"e86akyq",
"e86bs6g"
] | [
"Large breed felines are all different species. All domesticated dogs are the same specices - with specific traits (size) bread into it over centuries or millennia. Dogs started from wolves thousands of years ago."
] | [
11
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
hch4ux | We're taught that cells are small, yet there are very large unicellular organisms like Bubble Algae that can grow up to 4cm in diameter! Are they really a single cell? How does that work? | Biology | explainlikeimfive | [
"fvf5o9f"
] | [
"Okay. So cells are small. The normal ones that have one nucleus, but big single cellular organisms have multiple nucleuses (?) and the cell walls between the cells don't exist where they would usually be."
] | [
3
] | [
[]
] | [
"url"
] | [
"url"
] | |
e2srro | How does a government shut down the internet for an entire country? What are the steps involved in shutting down the connection? | Technology | explainlikeimfive | [
"f8xhebc"
] | [
"Every country has only a relative handful of places where they connect their network to the rest of the world (forming the internet). For most countries, these connection points are along the coast, where fiberoptic cables (armored glass tubes) come together in large facilities for distribution throughout the coun... | [
12
] | [
[
"https://www.submarinecablemap.com/"
]
] | [
"url"
] | [
"url"
] | |
79sio7 | Why does a glass with water in it get bubbles if it sits over night? | Chemistry | explainlikeimfive | [
"dp4gwic"
] | [
"Dissolved oxygen conglomerates on itself and attaches to imperfections in the glass sides. Remember that the act of pouring and / or filling the glass is a process of oxygenation / aeration."
] | [
3
] | [
[]
] | [
"url"
] | [
"url"
] | |
l5isuf | Why does lukewarm water feel extremely hot on our hands/feet/etc. after being out in the cold? | Biology | explainlikeimfive | [
"gkuf8ct"
] | [
"Humans cannot \"feel\" temperature directly, they can only sense heat flow. That's why we invented ideas like \"wind chill\". When your skin has been chilled, it detects more heat flow from the water, thus the water feels \"warmer\". It works both ways, when you put your hand on a stone countertop, it \"feels\" co... | [
3
] | [
[]
] | [
"url"
] | [
"url"
] | |
8asam3 | What causes the many different toots and horns of flatulence day by day? | Is it the position you're in? The food you eat? I noticed some days are completely different than others. | Biology | explainlikeimfive | [
"dx1kmzd"
] | [
"I saw a children's museum exhibit several years ago that explored this. Simply put, a lot of it is about tension and geometry of the anus, as well as gas pressure behind the \"toot.\" In the exhibit, air was flowing through a balloon valve (the opening of a standard balloon that you would tie off. The kids were en... | [
3
] | [
[]
] | [
"url"
] | [
"url"
] |
5polgu | Why are the plots of soap operas some repetitive and uninspired? Has it always been that way? | Culture | explainlikeimfive | [
"dcsm6c1"
] | [
"Soap operas as a genre were developed in the mid-20th century to serve audiences that were mostly housewives whose kids were at school and husbands at work. What that demographic tends to find interesting are changing combinations of interpersonal relationships. Since there are only so many possible variations on ... | [
4
] | [
[]
] | [
"url"
] | [
"url"
] | |
6a6965 | FCC Comments. How many are needed and how do they make a difference in policy? | Other | explainlikeimfive | [
"dhc0eo0"
] | [
"The SOPA debate led to over 500k comments on the FCC. Less than a year later, the initial mainstream net neutrality debate that followed led to over 1M comments on the FCC. So, to answer your question - historically it seems that you need roughly 500k comments to delay policy change for another year. The question ... | [
5
] | [
[]
] | [
"url"
] | [
"url"
] | |
62an18 | What was the starting point that lead to a successful rocket launch into space? How does it not take a million incremental tests to get to the end goal? | Physics | explainlikeimfive | [
"dfl2295"
] | [
"It does take millions of incremental tests thats why it took so long before we started sending man mad objects into space. First thing you have to do is make sure your rockets can provide enough thrust to get into space. Strap it down and measure its output. If it doesnt net the results you want go back to the dra... | [
8
] | [
[]
] | [
"url"
] | [
"url"
] | |
nsk4u2 | What does solder actually do in electronics? | I understand that part of it is for structural support, but what else is it for? | Technology | explainlikeimfive | [
"h0mwi4j",
"h0mwrj9"
] | [
"It is basically just conductive glue. It holds electrical components in place and allows them to conduct electricity along a path between them and the next components in the circuit."
] | [
10
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
5mxz6j | How do birds feet not freeze? | Biology | explainlikeimfive | [
"dc7k6ia"
] | [
"[This]( URL_0 ) is a pretty good description for why they don't freeze. In a nutshell, bird's feet are little more than skin, bone and sinew, and their blood flows so fast that it doesn't have time to freeze in the first place. Their circulatory system is also set up to reduce heat loss through their feet, which c... | [
8
] | [
[
"http://askanaturalist.com/why-don%E2%80%99t-ducks%E2%80%99-feet-freeze/"
]
] | [
"url"
] | [
"url"
] | |
an6vw0 | How do pilots know when to expect turbulence? | Aside from the obvious bad weather etc, how do pilots know when to expect turbulence when flying through clear skies? | Other | explainlikeimfive | [
"efr5eme",
"efrnn4w",
"efrc26o",
"efr5tqg"
] | [
"Somebody will come around with a clearer answer, but I think pilots that have experienced unexpected turbulence just report it to ATC, and then ATC lets the other pilots know when they’re entering the area where turbulence was reported."
] | [
22
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] |
6z7ugh | Is there a disadvantage in being an omnivore? | Humans are omnivores and can survive off of meat and vegetables, but most modern carnivores only eat meat and just a few species are eating vegetables too. Is there a hidden disadvantage for being an omnivore and shouldn't Survival of the Fittest have favored omnivores since they are more adaptable? | Biology | explainlikeimfive | [
"dmt9lek",
"dmt77v1"
] | [
"> Is there a hidden disadvantage for being an omnivore There is. Carnivores are better at digesting and extracting nutrients from meat. Herbivores are better at doing the same with plants. Omnivores are can digest both, but are worse at either, which means they have to, in general, eat more overall."
] | [
8
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.