id stringlengths 5 6 | input stringlengths 3 301 | output list | meta null |
|---|---|---|---|
2mg0qx | Are satellites sending data back to earth affected by the Doppler effect? | [
{
"answer": "Yes, it's not small enough to interfere with communications, but it's large enough to be able to measure the speed of the spacecraft. If Rosetta is traveling at 15 km/s relative to Earth, then the change in wavelength will be 0.005%, from the formula:\n\nlambda^obs = lambda^emit \\* (1 + v/c)\n\n(s... | null |
1mw3ja | Why would it be fatal if someone had too much fat removed through liposuction? | [
{
"answer": "It's not just fat, fat isn't stored like cream cheese packed under our skin. Fat is stored inside specialized cells called adipocytes, liposuction removes many of these cells from adipose tissue depots. Like any other tissue, adipose requires blood flow, meaning it is vascularized. Removing large ... | null |
fqms8 | Why don't solids merge when pushed against each other? | [
{
"answer": "Well each atom is connected by electrons to other atoms. If there was a free electron, it could bind to a site on an adjacent crystal if the conditions are right. But in actual crystals, the atoms on the outside that can't join with the same number as on the inside often have oxide layers that prev... | null |
zdkji | would curing cancer ultimately be a good thing? | [
{
"answer": "Ugh, nothing is more annoying then \"boo hoo I'm going to get downvoted for speaking my mind\".\n\nIt's obnoxious.\n\nRegardless though heart disease is still the biggest killer in the US at least, and overpopulation isn't really a massive concern in the industrialized world where cancer is an issu... | null |
82homb | who are the people peer reviewing statistics and scientific findings | [
{
"answer": "Are you seeing actual studies, abstracts or articles about studies? All those are different and only proper journal studies are peer reviewed.\n\nBasically it gets sent to a random selection of experts in the field, who comb through the paper and the report to are if the findings are reasonable.\n\... | null |
2k6dr6 | Why did telegrams fall from popular use? | [
{
"answer": "They were overtaken by technology - telephones became more widespread in private residences and some point fax machines came along, then cellphones with the ability to send text messages and then a little later the internet and widespread use of email, which in some cases is being replaced by socia... | null |
1d8vp1 | When bright light reflects off a coloured or black surface and the reflection is white (IE from the sun), what is happening? | [
{
"answer": "The problem has to do with the way you're defining a \"pure blue surface\". RuleOfMildlyIntrstng answers the question in passing, and addresses the possibility of a perceptual effect. But like you say, you're not talking about the perceptual effect.\n\nSurfaces have two macroscopic reflective behav... | null |
1ktfp1 | what are the biases of main us news networks? which us news network is considered the must unbiased? | [
{
"answer": "None of the cable news networks are unbiased.\n\nMSNBC is probably the most biased, with a far left slant.\n\nCNN is about as far left as Fox is right, both with a moderate to heavy slant.\n\nNBC, CBS, and ABC (the old three networks from before cable) all have left leaning slants of varying degree... | null |
bxun1r | how do animals without parental training know how to be the animals they are? | [
{
"answer": "First, if I were to cut your skull vertically and take a look at a cross-section of your brain, I'd be able to divide it into what you normally think of as the brain (the noodlely bits) and the brain-stem. \nMost of your instinctual functions, such as curling away from heat, your fight or flight in... | null |
2st8c5 | Microwave Ovens: What is the relationship between the power level selected and the cooking time? | [
{
"answer": "On my microwave, the microwave is heating the percentage of time you select. At 100% it's continuously microwaving. At 50% it'll be heating, then not heating, then back on, then back off, etc. \n\nOn my (cheap) one it gives the illusion of power changes, but it's really just cycling the heating... | null |
zinna | How do we know how fast a galaxy was moving away from us at the time the light we can see left it. | [
{
"answer": "The red shift tells us how fast it was moving, the distance is figured from a chain of observations and assumptions.",
"provenance": null
},
{
"answer": "We are generally measuring quasars from a galaxy, not all the light from the galaxy. Quasars give us a specific idea of what waveleng... | null |
3cjzuu | /r/subredditsimulator | [
{
"answer": "The subreddit is filled with bots that randomly generate posts and comments, based on existing reddit content. For example /u/AskHistorians_SS generates comments from the content of /r/AskHistorians.\n\nThe sticky post explains how the comments are generated:\n\n > The text for titles/comments/tex... | null |
11pn01 | Arguments that the Counter Reformation was a success? | [
{
"answer": "Well, they restricted the Reformation to the fringes of Europe, kept Spain & France in particular in the fold, so that'd be where I'd start.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "23000716",
"title": "Christianity in the ... | null |
1suiw8 | What are the products of the regeneration of a diesel particulate filter? | [
{
"answer": "I did a study for some US-Mexico transport agencies which focused on the reduction of Particulate Matter using these sorts of technologies in trucks, so i will mostly address trucks.\n\nThese filters are aimed at reducing the amount of particulate matter in vehicle emissions, but can reduce other c... | null |
794q5e | How come when Europeans came to north America, they made the natives a minority, but in south America, the descendants of the natives at lest make up the majority? Or are they not native, but from elsewhere? (Spain?) | [
{
"answer": "Remember, South america was far more populated than North America. The reason for this was because South America held the most favorable conditions for farming which led to cities which led to civilizations arising like the Aztecs and the Inca. Of course many North American peoples settled into far... | null |
34unbx | Is it possible for 0% humidity to ever occur on Earth? How would the human body react? | [
{
"answer": "The only way to get absolutely 0% humidity is a vacuum. If we got to as close as possible (a few percent), we wouldn't have trouble breathing unless for a long period of time. We wouldn't get dehydrated rapidly, maybe slightly quicker, but our skin is made to help with that. If you inhaled heavily,... | null |
4okbr5 | if we manage to get fusion, is that really unlimited energy and how does it compare to current energy sources? | [
{
"answer": "Not exactly - the fuel of a fusion reactor is deuterium, which is present in seawater. Approximately 1 out of every 6500 atoms of ocean hydrogen is deuterium. \n\nFusion power is non-renewable, and not unlimited. However, the amount of power that can be produced from a very small amount is treme... | null |
20v6ot | How often did medieval Christian priests fight in battles? Was the mace their weapon of choice? | [
{
"answer": "Priests are, as this myth rightly says, prohibited from the shedding of blood. However, there are quite a few Church canons specifically prohibiting clerical participation in warfare. \n\nThis is not to say it didn't happen - *La Chanson de Roland* has Bishop Turpin in full armor, and the frequent ... | null |
v0rmi | why does the human body get used to things? for example: smells, the way a room looks, routine | [
{
"answer": "because it is the *unusual* sound, smell or object which may offer the unique opportunity or be an immediate danger. \n\nregular stuff... becomes unimportant. ",
"provenance": null
},
{
"answer": "it's not really a bodily process more than it is a mental process. \n\nwhen we are present... | null |
at1bjo | What a ischaemic heart disease really is and what happens to the heart? | [
{
"answer": "Ischemia means reduce blood supply.\n\nThus in ischemic heart disease the blood supply to the heart is reduced or blocked fully due to atherosclerosis and causing conditions like myocardial infarction, angina and cardiac death.",
"provenance": null
},
{
"answer": null,
"provenance":... | null |
2mmhku | In space, can magnetic material orbit a magnet using magnetism the same way mass orbits each other using gravity? | [
{
"answer": "No it can't, for ways that are difficult to explain without math. Basically, there are only two types of forces that lead to stable orbits: Coulomb/Newton forces that obey an inverse square law, and harmonic/elastic/spring forces that obey a linear force law. This is proven as [Bertrand's theorem](... | null |
70mzkn | how do plastic bags help preserve food? | [
{
"answer": "I think it depends on the item. E.g. Cucumbers are usually wrapped in plastic to prevent moisture lose - _URL_0_",
"provenance": null
},
{
"answer": "It limits the amount of bacteria that can find its way to the item.\n\nWhile it won't remove any that's already on the item, it will prev... | null |
ebt9at | where is non-physical government money stored? | [
{
"answer": "A large majority of money in the world is non-physical. It’s just 1s and 0s in a computer system somewhere.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "48266",
"title": "Representative money",
"section": "",
"sta... | null |
3kwa1n | What actually happens during the combustion of hydrocarbons? | [
{
"answer": "Here is a paper from 1992 that gives a \"simplified\" mechanism.\n\n_URL_0_\n\nIn short, radicals are formed and then the reaction proceeds very quickly. There can be a large number of different species that take part in the reaction so it is a very complicated thing to describe kinetically. Reacti... | null |
3dr569 | How far would various groups of people travel in a days time in Roman times | [
{
"answer": "Historians at the University of Stanford have made an excellent interactive map which answers all of your quesions and then some: \n_URL_0_",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "3178674",
"title": "Day's journey",
... | null |
4dkaik | What would be the result if we somehow trap photons in closed metallic sphere that is as reflective as a mirror on the inside? | [
{
"answer": "First of all, because mirrors are rarely much more than 99% efficient, the photons would be absorbed in a fraction of a second. The energy of the absorbed photons would be re-emitted as heat. Energy is conserved, so the heat produced by the sphere would only be as much as the wattage of photons put... | null |
39mwrr | why do people prefer "natural" diamonds. are there real differences? | [
{
"answer": "It's all about marketing creating the public perception that \"real\" diamonds are superior to artificial ones. All it takes is one salesman to say \"well, if you don't really love her *that* much, we've got these synthetics over here\" and most customers are going to jump right back into the natu... | null |
wwws6 | Why does smoke leave a smell? | [
{
"answer": "Some chemical components of smoke will physisorb on surfaces. This means that the molecules land on and very weakly bond with surface. They will sit there for a while. At some point they will leave the surface by desorbing. This is one reason why the smell will persist for a length of time. The sur... | null |
4cj6ot | the growth rate of real gdp per capita is usually lower than the growth rate of real gdp | [
{
"answer": "Per capita GDP growth is lower than real GDP because of population growth. If GDP per capita is $100 and the population is 100 then GDP is $10,000. If GDP per capita grows to $110, that's a 10% increase per capita. And if population grows to 102, then real GDP would have grown by 11.2%",
"prove... | null |
1gcsds | What causes people to create and believe in truly outlandish conspiracy theories? | [
{
"answer": "There tend to be several reasons people tend to believe in conspiracies. People are often initially drawn to these theories as a search for meaning. this can be readily seen in the aftermath of a tragedy like 9/11, when the enormity of the event lead some people to seek alternate explanations. Once... | null |
1cqc90 | What do all languages have in common? | [
{
"answer": "I'd recommend a good book by John Lyons called \"Introduction to Theoretical Linguistics\". It goes into detail about what you're asking. _URL_0_",
"provenance": null
},
{
"answer": "Well, one of the things languages tend to have in common, is that they follow Zipf's law. As quoted from... | null |
jdrfa | Is it possible to 'paint' a target with a proton beam to make it more attractive to a tesla coil? | [
{
"answer": "I think that the number of protons you'd need to fire at a target to get it to achieve a significant net positive charge would be prohibitively high. This is in part because the protons would collide with molecules in the air, scattering them.\n\nHowever, the concept of tagging a target for electri... | null |
c2d8vx | When fighter jets break the sound barrier, is it loud in the cockpit? | [
{
"answer": "Surprisingly no. The only noticeable difference is the feeling on the control surfaces - they become slightly \"mushier\" and less responsive. \n\n_URL_0_",
"provenance": null
},
{
"answer": "The thing is the jet never breaks through anything.\n\nAircraft engines are pretty loud. So yo... | null |
1obgct | 19th-20th century American schools | [
{
"answer": "Perhaps your trouble to find responses comes from the fact that there is no question in the title. From the [subreddit rules](_URL_0_),\n\n > Please put your question in the post title",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "333834... | null |
1kow07 | Why do rowing teams need to be synchronized? | [
{
"answer": "That way they don't bang their oars into each other. ",
"provenance": null
},
{
"answer": "Here's a paper that says there may be benefits to rowing a little out of phase:\n\n[Don’t Rock the Boat: How Antiphase Crew Coordination Affects Rowing'\nAnouk J. de Brouwer, Harjo J. de Poel, Mat... | null |
n355f | why is copper such a good conductor? | [
{
"answer": "Try [this shit](_URL_0_).",
"provenance": null
},
{
"answer": "Copper has only one electron in its outermost electron orbit, which makes it easy to steal away the electron or add it back. Electricity, (the movement of electrons) takes advantage of that lone electron.\n\nOther metals wi... | null |
850884 | how were the first perfect objects manufactured? first straight piece, first perfect circle, first perfect sphere, first perfectly straight sword, etc.? | [
{
"answer": "I don't know, we will let you know when it happens. No such \"perfect object\" has ever been made and it seems impossible.",
"provenance": null
},
{
"answer": "There's no such thing as a \"perfect object.\"\n\nIn fact, we use a concept called \"significant figures\" to tell you how conf... | null |
2aqyq5 | What happened with prisoners in the German Democratic Republic after reunification? | [
{
"answer": "The GDR didn't cease to exist, it joined the Federal Republic instead. The Federal Republic thus is the successor state to the GDR, inheriting its debts and obligations, like both were to the German Empire.\n\nThe reunification itself is governed by the *Einigungsvertrag* (Unification treaty) in co... | null |
2mu6m0 | how does a virus such a ebola stay unheard of for so long and then have massive outbreaks? are there still a few cases between outbreaks? or is it truly non-existent in humans in the time between outbreaks? | [
{
"answer": "It's actually been around for a very long time, yet it's remained mainly in parts of Africa. Which means that unless its on Facebook, nobody here in America really cares for more than a week or two. But of course once it reaches America we actually care about it when media says its become a massive... | null |
7exuu6 | [physics] When I turn off my oven but leave the door closed how does the temperature cool? | [
{
"answer": "The oven is not perfectly insulated, so the heat inside the oven will gradually be conducted to the things surrounding it (other parts of the kitchen, air, etc...).\n\nIn addition, many ovens will keep running the fan for some time after the oven was turned off. By cycling air through the oven, the... | null |
bmuo6v | why "trap music" has such a distinguishable beat. what about the beat is different? | [
{
"answer": "Trap music usually follows a formula of simple crisp snares and hats, often in 16th and 32nd notes. That mixed with an 808 and a few synths gives you a basic trap beat. Its different because most trap is very simple and alot of it sounds similar compared to alot of other hip hop and rap.",
"pro... | null |
19f24a | Why did the German Army stop using paratroopers in WW2? | [
{
"answer": "The Germans did not stop using paratroopers. What they did was that they stopped dropping them by parachute and instead used them as highly trained ground troops.",
"provenance": null
},
{
"answer": "First off, paratroopers themselves were still used until the bitter end. They just sto... | null |
4lu12y | how could two shapes or places that have same the perimeter, have different area? | [
{
"answer": "Take a loop of string to represent your fixed perimeter, and try arranging it on the table to make different shapes which have that perimeter. You can make it into a circle and have lots of area inside the string, or you can stretch it out until it's almost just two lines side by side, and there's ... | null |
4kyl2f | rim lost its dominant position in the smartphone market,and nokia its dominant position in mobile handsets general market. | [
{
"answer": "Apple leapfrogged them with the iPhone, which was far better and far easier to use than the BlackBerry. Google copied Apple with a good enough copy and gave it away free to cell phone manufacturers around the world. Between the two companies, iOS and Android took over 90% of the smartphone market i... | null |
1472qt | the physical process of death | [
{
"answer": "\nThe loss of blood in the capillaries happens rapidly, within minutes of death.\n\nAlgor mortis is when the body begins to cool. Within the first hour, the body will lose two degrees in temperature. Then, every hour afterward, it will lose one more degree of temperature until it is the temperature... | null |
eptnb5 | When you diet and exercise, where does the fat you burn physically go and how? | [
{
"answer": "You're body uses fat to store excess energy not required during your metabolic function. So when we eat more energy than we use our body stores the excess for later as fat. Conversely when we use more energy than we eat our body switches over and breaks down the stored energy in fat. In mammals lik... | null |
3lvre4 | Was the "Battle of the Bulge" really the "greatest single defeat in American military history"? | [
{
"answer": "The Bulge was the greatest single land battle the US Army ever participated in. It was not a defeat, however. The American units in the center were pushed back significantly and a large German salient developed, but the Germans were never in serious reach of their overall goals (Seize Antwerp). Th... | null |
c6jguk | how do websites which ask for the x, y and zth letter of my password avoid storing it in plain text? | [
{
"answer": "There’s no guarantee that they aren’t. They very well might be. It only takes one lazy programmer or someone on an “off” day to set to store in plain text.",
"provenance": null
},
{
"answer": "Remember the site who told you whose password you typed when you tried to create one that was ... | null |
53gbo1 | Do we have texts of Asian countries exploration of the Middle East and Europe pre 1600's? If so, how did they discribe people from the Middle East and Europe? | [
{
"answer": "Yes and no. Most of China's exploration was centered either in the 'Western Regions' in Central Asia or in India. Something really important to remember is that before the later dynasties, the official Chinese \"empires\" only controlled segments of what is modern day China, so much of their explo... | null |
3ms349 | how is circumcision acceptable in cultures or religions that don't accept body piercings or enhancement surgerys? | [
{
"answer": "They consider it to be separate from and different than body piercings or enhancement surgeries. It's considered a different thing entirely. It's a bit like asking, \"If Muslims and Jews don't eat pork, why is it acceptable to eat beef?\" The answer is \"Because beef isn't pork.\"",
"provenance... | null |
7dl8xq | if wavelength of light emitted by a heated metal is supposed to keep on going down as temperature goes up then why does a metal never glow purple? | [
{
"answer": "The spectrum of thermal radiation is a continuous function over all frequencies. When the peak of the distribution first goes into the visible range, you see it as red because red is the only visible color where the distribution is relatively high. \n\nWhen you get hotter than that, the peak of the... | null |
36yxks | [Psychology] Does working with people with mental illnesses increase your chances of developing a mental illness yourself? | [
{
"answer": "a mental illness is a mental condition usually caused by genetic and environmental factors. working with someone with a mental condition does not make it any more likely that an unaffected person would start to exhibit symptoms. however, human beings are social creatures and tend to puck up traits... | null |
8k4btu | what is the difference between dna and rna, and how do the work in biology? | [
{
"answer": "DNA is like a book in the reserve section of the library. It’s the full complete section of your entire genetic information that can’t leave the nucleus. \n\nRNA are the photocopies/notes of the book. You can take those anywhere and use them to study, and they are only going to be the pages that yo... | null |
85riry | why can't we send someone with a piece of paper and a pencil to map the paris catacombs? | [
{
"answer": "Because he would end up dead in few minutes of course.\n\nSeriously, there are maps of Paris catacombs (official and not public or unofficial and public), they could be incomplete because things can change and (I guess) nobody cares about extra dead-ends.",
"provenance": null
},
{
"ans... | null |
1siqp7 | Why is it significant that the East India Company was a company that colonized India, and not the British government? | [
{
"answer": "It's important because it shows how de-centralised the process of colonisation and empire-building was. \n\nColonisation was not an initiative launched by the Crown, or a formal government policy, it was private enterprise solely for the purposes of profit - which is bad news for the natives. Indee... | null |
vnale | youtube top comments | [
{
"answer": "It's a mess and YouTube hasn't been very forthcoming about the algorithm in play. \n\nSome videos don't even have top rated comments despite having comments with over 100 thumbs up. Even if the thumbs down of highest rated comment is taken into account, the math still doesn't add up.",
"proven... | null |
3sdr5d | how does a website like facebook or google handle millions of requests a minute? | [
{
"answer": "There are many different ways to handle load balancing. Here are just two examples:\n\n1) It's possible to create DNS records for your domain that effectively point users to different servers (by IP address) by presenting the user's computer with a list of server IP addresses associated with the do... | null |
1z6b0t | if i was an employer, would i be allowed to fire whoever i wanted for no reason? | [
{
"answer": "I believe its different from country to country. In Canada there's termination with cause and without cause. With cause is with reason such as theft or misconduct. Without cause means you should be provided notice of termination and may be entitled to compensation, an example of without cause is y... | null |
4yny3g | why do we wake up to alarms even if we seem oblivious to background noise while asleep? | [
{
"answer": "There are two forces in play:\n\nThe sound of an alarm is annoying. While the radio or TV can be annoying, it's not annoying enough. For example, I often fall asleep during a radio program, but I get woken up at the hourly beeps before the news.\n\nTraining: Your brain learns to recognize the alarm... | null |
12qrlq | Why was Italy and the City of Rome so dependent on Egyptian and North African grain shipments? | [
{
"answer": "Much of the food produced by farming families in the classical period was needed to feed the families themselves. So when crop output is as low as it was, even small increases of production result in large increases in surplus. Egypt had much more efficient agricultural production than Italy did th... | null |
20qmdr | when doing a multiple choice test, is it better to choose 1 answer for when you have no clue, or to make your guesses random? | [
{
"answer": "William Poundstone actually talks about this very thing in his book \"Rock Breaks Scissors\". His findings from research conclude (this is paraphrased and not directly quoted):\n\nThere are, in fact, approaches one can take if the correct answer is not known in a multiple choice test. Two things to... | null |
4dgi1y | What was Taiwan's role in World War 2? | [
{
"answer": "Firstly, a couple of points. Taiwan was formally ceded by the Qing Dynasty to the Japanese in 1895, so while it was not technically \"occupied\" having been \"lawfully ceded by treaty,\" some people still considered it an occupation. Secondly, the PRC was not established until 1949. China was ru... | null |
1seky4 | How exactly does one prove the existence of a new species? | [
{
"answer": "With sexual organisms, you can always just try pairing them up with closely related organisms and see what happens (in fact, some species have been discovered when people found out that two organisms that appeared to be the same species couldn't breed; these are called \"cryptospecies\").\n\nWith a... | null |
54zj22 | the difference between object oriented programming and structured programming in computer science? | [
{
"answer": "Structured programming was invented in the 1950's as people started writing the first programs that were thousands of lines long. It basically means to organize your program into pieces and use functions and loops, rather than \"go to\".\n\nObject-oriented programming was invented in the 1970's as ... | null |
1hs3xg | What could be considered "History's most awkward moment?" | [
{
"answer": "Removed. See our rules against poll questions.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "7208646",
"title": "Jallianwala Bagh massacre",
"section": "Section::::Monument and legacy.:Regret.\n",
"start_paragraph_... | null |
f7fhjf | Rules Roundtable III: No Example Seeking or Poll-Type Questions | [
{
"answer": "You may recall this post from last week - [Why are there so many \"First\" churches, and so few (if any?) \"Second\" and \"Third\" churches?](_URL_0_)\n\nI noticed the example-ness of it, when I was doing my research because to answer I basically had to get like 50 examples of a \"second baptist c... | null |
ctgthc | Do you burn more calories than normal in the days subsequent to a heavy workout? | [
{
"answer": "Yes - there is a process called excess post-exercise oxygen consumption (EPOC). Your body is consuming more oxygen than it otherwise would to restore your body's homeostasis, such as building up reserves of ATP, repairing damaged muscles through protein synthesis and removing metabolic waste produc... | null |
14gdcm | How much, in modern dollars, did it cost for Columbus' first expedition? How did it compare to the costs for the Moon landing? | [
{
"answer": "Since I have it on my desk, I will point to Phillips and Phillips, *The Worlds of Christopher Columbus* pg 134. In summary, the voyage cost 2 million maravedis in total. Columbus brought a quarter of that to the table. He borrowed it from financiers outside of Spain. The monarchs put up 1.14 millio... | null |
y28nm | Is there a possibility of Ancient structures/lost civilizations lost to the advancement of the Sahara Desert | [
{
"answer": "I believe they have found ruins in the sahara, and many theorize that it was a grassy plane 3,000 years ago.",
"provenance": null
},
{
"answer": "Do you mean something similar to [this](_URL_0_)?",
"provenance": null
},
{
"answer": "Aside from teaching a couple of units to y... | null |
1fhhf7 | "The Bomb Didn't Beat Japan... Stalin Did" - Opinions on this article ? | [
{
"answer": "You might try x-posting this to our Saturday Sources post, which is on the front page at the moment.",
"provenance": null
},
{
"answer": "So the argument that the Soviet invasion was more important than the bombs originally* comes from another scholar, Tsuyoshi Hasegawa, whose book, _[R... | null |
1r19pr | elvis presley, particularly why he was so influential and significant | [
{
"answer": "IANA Elvis expert, but this is what my grandma told me. \nWhen Elvis first arrived on the \"scene\" her generation was in a more prim and proper time, and had been for quite sometime. (This followed the \"roaring twenties\") There were very strict generational guidelines going on and he challenged... | null |
7ndl27 | - what is a “bus” (or what is “bussing”) in audio and how is it utilized in live vs studio audio? | [
{
"answer": "I was a live sound engineer a while ago, we used sends instead of busses but it is basically the same thing.\n\nYou can send a signal along a bus and it is basically a copy from when you send it. \n\nSo audiosignal comes in and you send it and audiosignal keeps going to where it is going, but you c... | null |
6ibhvh | Why do antibiotics like doxicillin work against acne? | [
{
"answer": "Pimples aren't just pores with oils. They are caused by bacteria. Pores with oils are great growing places for them. Antibiotics attack/kill the bacteria so the pimples will vanish. \n\nThe puss that comes out if pimples are dead white blood cells, they died because they attacked the bacteria. The... | null |
3s147t | After the advent of massed gunpowder weapons, what was the first example we have of bulletproof armour? When was it developed? | [
{
"answer": "Pretty much immediately; while gunpowder weapons were an advantage against armored opponents, within decades of their introduction armorers would test their work by firing a pistol against the breastplate to 'proof' it; this is the source of the word 'bulletproof'. Armor and gunpowder weapons exis... | null |
11ktop | Could electrolysis of water efficiently provide fuel for a hydrogen fuel cell? | [
{
"answer": "No, you're right. But that doesn't mean hydrogen fuel cells are worthless. Hydrogen Fuel cells are not energy creation devices, they are energy transportation devices. They are a way to carry energy, in a very dense way. \n\nWhy is this useful, you may ask? Let's look at a car, for instance. A stan... | null |
caxzlm | Are there any diseases that are more common in one sex than the other that aren’t genetic or genital related? | [
{
"answer": "There are a LOT of examples of sexual and racial discrimination in diseases.\n\nTake rheumatic arthritis, an autoimmune disease (be it with a genetic compound, but definitly not a genetic disease like i.e. chorea huntington). Females are 3x more often affected then males.\n\nAnother example would b... | null |
14bdmj | Do all people absorb the same amount/ratio of calories from an identical food source? | [
{
"answer": "[This](_URL_0_) is a decent article on the topic.\n\n > Even if two people were to somehow eat the same sweet potato cooked the same way they would not get the same number of calories. Carmody and colleagues studied a single strain of heavily inbred lab mice such that their mice were as similar to... | null |
9xaje1 | How were poisoned arrows made? | [
{
"answer": "Poisoned arrows depend on multiple factors: bow and arrow construction, toxicological knowledge, access to resources, etc. Poisoned ranged weapons from antiquity were very different than what Native Americans used. It's also impossible to pinpoint the \"first\" poison since a lot has been lost to t... | null |
5nmsa2 | how can someone be lost at sea with all of the technology and satellites we have now? | [
{
"answer": "Oceans are huge, that's basically the answer. A major aspect though is that acquiring temporary use of a satellite costs millions of dollars, something that's not viable for search and rescue. So, helicopters can be sent out to look, but again, the ocean is huge. \n \nIf the people lost at see bo... | null |
2dfwjr | What would Earth be like if life never got started? | [
{
"answer": "Some rock types just would not exist or be radically less abundant, notably carbonates and phosphorites. Hydrocarbons wouldn't be there either. A lot of ore deposits wouldn't be there either (VHMS for instance), or be greatly reduced (the incipient formation of these sulphide deposits seems to depe... | null |
3ne2a8 | how did 9/11 change the world ? | [
{
"answer": "9/11 created the War on Terror. Without the War on Terror, the U.S.-led wars in Afghanistan and Iraq wouldn't have happened. The Patriot Act wouldn't have happened. The NSA's PRISM program wouldn't have happened. ISIS wouldn't have happened.",
"provenance": null
},
{
"answer": null,
... | null |
153uvr | why some sites such as cracked split all their articles into 2 pages instead of just putting everything on one page | [
{
"answer": "Double the views for the ads",
"provenance": null
},
{
"answer": "Every little ad that shows up on your screen earns sites like _URL_0_ money - it's their way of making money off of writing all of these articles that are completely free for you to read. By giving a little bit of your sc... | null |
f3rlly | How was the nuclear binding energy measured? | [
{
"answer": "Nuclear binding energy is not “separate from the Coulomb” energy. Coulomb repulsion makes a negative contribution to the binding energy of the nucleus.\n\nBinding energies are measured by measuring masses and taking differences between them. The binding energy of a nucleus (Z,N) is the difference b... | null |
2t1phe | why are panty lines taboo? | [
{
"answer": "It's simply a style/fashion thing, like wearing maroon and red together. Yuck. In this case, yuck, you're showing your underwear. You either want to go stylishly modest or stylishly sexy. Showing panty lines is neither.\n\nStylishly modest: The clothing over your underwear is thick enough or loos... | null |
3b48dp | if college education at public institutions became free of charge (to students) what happens to private institutions? | [
{
"answer": "Realistically, not much.\n\nCost to attend is rarely the barrier that prevents people from going to college; student loans are easy to get (though the true \"cost\" of these is an entirely different discussion). Moreover, in-state tuition for most public universities is very low - [UT Austin is on... | null |
b2egbo | Books on Ancient Societies' Political, Social, & Economic Structures | [
{
"answer": "Well, social and economic history are kind of my thing :) I can't speak for dynastic Egypt, India, or China, but I can give you a start on some scholarship for ancient Middle Eastern studies, Greece, and Rome. \n\nBefore I start, I'd like to put in a quick note. Many scholarly books, especially tho... | null |
fjce84 | what is ip routing? | [
{
"answer": "The router at your house has a pretty simple set of rules. Packets with the IP address assigned to your house by your ISP come in and all others are ignored. Any traffic it sees is forwarded to the ISPs routers, as there is no other part of the Internet that's at your house.\n\nA more general rou... | null |
72v3kb | how is supporting research for children's cancer different from supporting any other sort of cancer research? | [
{
"answer": "There are many different types of cancer, and in some respects every single individual case of cancer is specific and unique, although there are likely to be some broad similarities. The types of cancers that are common in children are different from the types of cancers that are common in adults. ... | null |
ko9q7 | Remotes use infra red light, right? How come I could point the remote upwards on my old TV and it would still work? | [
{
"answer": "First, you can not claim that the ceiling was not reflective because you have no way to prove that it was, or was not, reflective in the IR spectrum (in fact, you pretty much proved that it was reflective).\n\nBasically, the IR LED in the remote is not coherent (it is not a laser) so just like a li... | null |
aty60s | Best or Most accurate Civil War memoirs. | [
{
"answer": "I recommend What this Cruel War was Over: Soldiers, Slavery, and the Civil War by Chandra Manning. It’s not a memoir but it is filled with various letters and newspapers from lowly Civil War combatants which really paints a picture of how the common people felt. ",
"provenance": null
},
{
... | null |
3z4u4q | "citizens united" court case ruled corporations as "people", so how come they can avoid taxes on income made in other countries while us citizens living abroad have to pay taxes on all income made abroad? | [
{
"answer": "Citizen's united did not rule that corporations are people. More that corporations are made up of people who all have a right to free speech, and can exercise that right through the corporation. \n\nThere are still big differences between a corporation and an individual from a legal perspective. On... | null |
5g15l4 | how is the data in an mp3 file translated into the sound coming through my headphones? | [
{
"answer": "First let's talk about a .wav file. Take a sound and capture it with a microphone (or a bunch of them, or their equivalent input devices). The microphone converts the sound (vibrations of the air) into [electrical voltages](_URL_1_) that vary (quite quickly) with time. Use an Analog to Digital Con... | null |
212s40 | How much do we really know about the Roman Kingdom (and the founding of the city)? | [
{
"answer": "EDIT: [Much more detailed response](_URL_0_).\n\nThis is very much an open question. Twenty years ago, at least in English language scholarship, the answer would have been practically nothing, or at least nothing worth mentioning. However, my understanding is that in the past decades scholars such ... | null |
lkqis | - what essentially is going on with the nba lockout? | [
{
"answer": "players want 54 percent I believe, owners only want them to have 50. Fuck both of them they make too much money to be bitching anyway. I'm from Chicago and as soon as we start to have a championship caliber team the NBA goes outta fucking business. fuck that.",
"provenance": null
},
{
... | null |
u22qr | and new to reddit, what is circle jerk? | [
{
"answer": "A circle jerk is when a group of guys get together in a circle, and jerk off the guy next to/in front of them. Everyone is jerking someone else off.\n\nA reddit circle jerk would be a sub-reddit where members post the same tired un-original content but everyone upvotes everything. Everyone jerks ... | null |
eqgcnr | Does anybody know what kind of military jacket this is? | [
{
"answer": "That’s a German military uniform jacket, circa 1900. There’s a [reference](_URL_0_) to it being specifically for a Württemberg military court counsel.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "41874346",
"title": "List of mode... | null |
10cze0 | Not including today, where and when would be the best place to live historically in terms of living conditions and general well-being? | [
{
"answer": "Any European court during the mid 1700s was extremely comfortable, especially Versailles. If you were born c. 1700 then Versailles was guaranteed to offer a full life of worry-free spending, gambling, partying and generally being cut off from the peasantry. That, and the fact the Enlightenment had ... | null |
1aczg9 | why do video's filmed in 720p looks so much better viewed in 360p than video's filmed at 360p do at the same resolution? | [
{
"answer": "It's called oversampling. Basically, if you capture way more digital data than you need, then throw most of it away with math, you end up with a much nicer result than if you only captured as much data as you intend to keep in the first place.",
"provenance": null
},
{
"answer": null,
... | null |
fbg8bl | we can inject fat and silicon into body parts like lips, boobs, and butts to make them bigger and fuller; why can’t we do the same for penises? | [
{
"answer": "Boobs are mostly fat, not functional tissue. The actual milk producing parts don't make up much of the overall size so when you want to add size, you just add filler. Butts are the same way, it's mostly muscle and fat so just add more filler.\n\nThe penis however is mostly blood. The reason a pe... | null |
ditrxo | Did anyone challenge Henry Tudor for the Lancastrian claim to the English throne? | [
{
"answer": "The answer is a pretty straight forward no. By the time that Henry Tudor was making his play to take the throne from Richard, he was the senior legitimate claimant from the House of Lancaster following the death of Henry VI and his children, was invested in the conflict, and was backed by France an... | null |
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