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Why does Japan have so many weird game shows? | [
"Why does America has so many stupid reality shows? They're cheap and people watch them."
] | [
"Back then people still needed jobs, now they dont and can practice harder for longer. And science helps by showing then methods on improving motions. You cam find cool videos on youtube"
] |
Why does wind "die down" at night? | [
"It's always windy higher up in the atmosphere. During the night the temperature is stable and the high altitude winds and lower air doesn't mix much. During the day the sunlight heats the earth and the air near the ground becomes warmer and moves up into the atmosphere. That causes a mixing of the air and the hig... | [
"It's just an obsolete tradition now, that few care about. It started back when summer clothes and winter or formal city clothes were different, often made out of different materials. Such as cotton vs wool. And often the families of the gentry class would relocate from their winter home in the city to their summer... |
Why do people still think that vaccination is linked to autism? | [
"Honestly, 0.0001% of the people on either side of this argument have ever done or ever will do any actual research on it. So people who think that autism is linked to vaccines think that way for the same reason that people who think the two are not linked think the way they do: because they've been told so by what... | [
"Politics. It's an easy issue to use to paint your opponent as \"evil\" regardless of which side of the debate they are on."
] |
Why doesn't consuming alcohol decrease triglycerides or cholesterol? | [
"General ethanol metabolism (very general) is as follows: C2H6O(Ethanol)→C2H4O(Acetaldehyde)→C2H4O2(acetic Acid) →Acetyl-CoA Acetyl-CoA enters the CAC cyle as normal. The precursors can be filtered by the liver and in the end can be urinated out. Entrance of Acetyl-CoA is going to signal a high energy state for the... | [
"During the First World War the Central Control Board was established in 1915, which \"effectively nationalised the brewery and pub industry in areas where the efficiency of munitions factories might have been damaged by drunkenness among workers\" ( _URL_2_ ). It should be noted that Lloyd George, who was Chancell... |
How/why did some shark species evolve black or white tips on their dorsal fins? | [
"Evolution doesn't have direction. A trait can evolve without having to have a benefit. If a trait doesn't have a downside it will sometimes stick in the population. Traits can also remain in a population due to sexual selection - E.g. a female shark is more interested in males with a black tip."
] | [
"[Social Darwinism] (_URL_0_) most definitely connects to the KKK. The KKK has been around for a long time and it has spent all that time trying to subjugate different groups. They of course think they are better then the groups they despise. In their eyes WASP's are the better of all different races and ethnic gro... |
5: Why in Britain do they use the metric system yet they use MPH for speed measurements? | [
"We began moving to the metric system around 40-50 years ago. When I was a child, shops still used to show weights in imperial - but a European directive that shops need to sell in metric really sped up the transition. There are a couple of things which we still use imperial measurements for though. They are distan... | [
"hi! fyi, you'll find lots of discussion on this topic in these posts * [Why does America write the date as Month/Day/Year when most of the world writes Day/Month/Year?](_URL_1_) * [How did the U.S.A. end up with the MM/DD/YYYY date format?](_URL_0_) * [When did the USA originally start using the mm/dd/yyyy format ... |
How long has grass grown on Earth, and where did it come from? | [
"Evidence from both [fossil/phytoliths](_URL_3_) and [molecular genetics](_URL_3_) indicates that grasses diversified at least 10-15 million years before they ever became ecological dominants. This is a pretty interesting pattern and does seem to suggest global climatic reasons for their later ecological spread rat... | [
"_URL_0_ Reportedly cows tend to feed more around sundown when the nutritional content of plants is higher. > “A series of USDA studies looked at animals’ ability to choose different forages. The researchers cut hay in the morning and in the evening and used this in the choice tests. They’ve done it with cattle, g... |
How did the death of a gunman in London spark these riots? | [
"What happened was that scenario just caused a peaceful protest. What was the real deciding factor was a rumor started to spread that a police officer treated a women wrongly during the protest (Pushed, hit, etc). This caused an uproar (and to the polices credit, it was just some random rumor that started out of no... | [
"Hi there -- while we've approved this question, we would like to remind potential respondents of our [current events](_URL_0_) (AKA \"20-year\") rule -- it's fine to discuss events through 1997 (inclusive) and their effects, but not events after 1997. Thanks!"
] |
Exactly how did we calculate everything before calculators? | [
"As an example, the cosine function can be approximated as 1-x^2 /2 + x^4 /24 - x^6 /720 ... with alternative positive and negative terms of even powers divided by factorials. This is more accurate the closer x is to zero and with more terms. Before calculators were commonplace, there were often people who calculat... | [
"You know how authors write long stories using letters and words and the rules of grammar and writing? Its just like that. With enough knowledge of how to read (math), these kinds of explanations make sense. Dont feel bad that you cant read it. Its just like if you tried to read a story in a language you dont know.... |
what actions are legally available to the UN security council if a country which has signed the NPT (non proliferation treaty) breaches it? | [
"The ELI5 answer is whatever the 5 permanent members of the council agree to do. A full answer results in a long list of buts, ands, maybes, and in the right conditions. But the reality is this. The five permanent members of the counsel have to agree on any kind of direct action, and if all five agree there is no o... | [
"Just a note - you might want to specify your question a little further since Nixon was not actually impeached. The House Judiciary Committee passed three articles of impeachment for the House to vote on, but the House did not actually vote for impeachment - Nixon resigned before then when it seemed likely that th... |
How much heat is in the hot air in my oven, as opposed to the solid components of my oven interior? | [
"Very little. The density of air at oven temperatures is going to be about 1.1 kg/cubic meter (1000 liters), so you've got about 110 grams of air in there, max. Now, air (by weight) has about twice the heat capacity of steel (although I'm not sure of that holds at oven temperatures), but even so, you have a lot mor... | [
"What you are missing is that the exhaust gas velocity depends on the gas molecular mass M. You can calculate it using [this equation](_URL_0_) of the exhaust gas velocity in chocked flow. Basically the lighter the gas the faster it can go and the more efficient with you mass you are. However for a given tank (ie a... |
What is the Loudness War and what side am I on? | [
"The Loudness War is defined as a trend in recorded music that has gotten generally louder and louder over time. Early records were relatively quiet; later records would record at louder volumes; compact discs set a digital limit that sound engineers would come up against through different compression techniques, a... | [
"If you're talking about \"ear\" phones, manufacturers generally mold each bud to fit in a specific L or R auditory canal. If you put them on the wrong way, they do not seal the canal, allowing the pressure waves to travel out instead of to your drum."
] |
What did de Blasio do, that is making NYC cops turn on him? | [
"Part of it has to do with what he told a reporter during a one on one interview. DeBlasio told this reporter that he has been teaching his son Dante, who is bi-racial to be careful around police officers. This led people to think that he is perpetuating the image of the white, racist police officer via the media."... | [
"A few years ago, Congress passed a bill saying they have to pre-fund their pension to absurd levels. Without that, they wouldn't be having much trouble."
] |
Why is it important to keep someone conscious who is experiencing shock/trauma? | [
"During shock, the blood pressure actually drops. If someone slips into unconsciousness, then you have another problem to worry about, are they breathing, are they still alive? Easier if they are only suffering from the trauma and can communicate with you. I'm a paramedic so that's how I look at it."
] | [
"To confirm that you're ready. What if the game just started and something came along and killed your guy?"
] |
Roughly how much of the current economy is driven by metadata collection? | [
"It's not a simple practice. People have devoted their entire careers to data analytics, finding useful patterns in information. It would be difficult to quantify how valuable of a commodity information is, and it could be done many different ways. However, it's clear that you already realize how central data colle... | [
"Hi there -- while we've approved this question, we would like to remind potential respondents of our [current events](_URL_0_) (AKA \"20-year\") rule -- it's fine to discuss events through 1997 (inclusive) and their effects, but not events after 1997. Thanks!"
] |
How do you run a business in US? | [
"My dad recently started his own business. It's only now getting off the ground. Now, I'm only 18, so I don't know shit about this stuff (since it's so complicated) but about the only part of your question I can answer is A) A bookkeeper's purpose is to keep track of business expenses. How much they're spending on ... | [
"The same way that you and I do at home. Do not use too much toothpaste, and spit if you start to build up too much drool or foam."
] |
How do fingerprint detectors work? | [
"The scanner uses a light-sensitive microchip to produce a digital image. The computer analyzes the image, selecting just the fingerprint part of the finger, and then uses pattern-matching software to turn it into a code, then this code is used everytime you want to unlock something. Every finger is given a unique ... | [
"Newer ones might be electronic. The original style would have a recording on a sound cylinder or disk, which would be wound by pulling the string. Generally, much like a record player. A number of the older ones basically are tiny little record players."
] |
How do Ouija boards work? | [
"You need at minimum one troll and one sucka."
] | [
"We can't, and nobody is saying that (well, nobody credible). There is absolutely *zero* proof of them, and they are not even a scientific theory - they're a mere hypothesis, or even just a thought experiment."
] |
Why can I see window tint patterns with my sunglasses on? | [
"Polarization. Grab another pair of polarised sunnies, take a pair in each hand, look through the lens of one pair with a lens of the other in front of it then slowly turn either pair. You'll see the same effect"
] | [
"Actually, Isaac Newton studied the exact thing you are talking about. It's called a phosphene, and it's created by the stimulation of the retina by means other than light, such as a magnetic field or an electric current. In your case, it's simply the physical pressure exerted on your retina. [Source](_URL_1_)"
] |
What happens when our stomachs grumble? | [
"It’s usually associated with the beginning of the gastric phases. Before we even eat, the thoughts and smells of food cause our vagus nerve to begin sending signals to our digestive tract. It’s essentially Priming the tract to get ready fo food. Muscle contractions begin and so does the secretion of lots of mucou... | [
"Isn't there some research about how chemicals released in your mouth can do this to gum. I vaguely remember something about kissing having the ability to do this. I know that eating chocolate while chewing gum will turn your gum to sludge. More info on the topic: _URL_0_"
] |
How is it possible that Protons and Neutrons can convert into each other through beta decay (β^− and β^+), but both ways emit energy outwards (as electron & electron-type antineutrino or positron & electron-type neutrino)? | [
"Only neutron- > proton beta decay occurs for isolated particles, because the neutron is more massive than the proton (by about 2.5 electron masses). Proton- > neutron beta decay only occurs in certain nuclei, where the re-arranging of the nucleus after the decay leads to one with lower energy (mass) than before."
... | [
"Normal microscopes use visible light, which reflects off of the object you are looking at, back through the lens, and into your eye. The constraint to that is that light has a specific wavelength, and it is very difficult to see things that are smaller than the wavelength of light you are using. Electron microscop... |
Why don't our brains pick up the the second "the" in sentences? | [
"Because you don't really read the the words, you just look at them."
] | [
"Imagine you're trying to find a coffee shop in a city. If you've been there recently, it should be pretty easy to find. If it's been 10 years since you've been to the coffee shop or the city, it might take you a LONG time to find. It also might take long to find if you've been to other, similar coffee shops in the... |
if i were to travel back in time to the middle ages, how would my immune system cope? | [
"You should bring this question over /r/askscience. I am sure they could you a good scientific response."
] | [
"As a note to our commenters: Please remember that this is /r/AskHistorians, not /r/asoiaf or /r/gameofthrones. Have some consideration for readers who might not have seen the latest episode yet and please keep your answers focused firmly on medieval history."
] |
What is time? How is it a non-arbitrary "thing"/dimension? If everything stood still, wouldn't time as well? | [
"I encourage you to read David Deutsch's book *The Fabric of Reality*. The chapter on what time is (and isn't) will likely help you think about these things. It's worth the effort to read the book. (It is written for non-specialists who are willing to think.) Deutsch, by the way, is a theoretical physicist who has ... | [
"Let me give you an example using a bit of math. If I have a point in 2D space, I need 2 coorinates to describe its position, x and y. The distance to the point is sqrt(x^2 + y^2) Ok now in 3D space I need three points: x, y, z. The distance to the point is sqrt(x2 + y2 + z2). See the pattern? Ok now about about 4D... |
Can someone explain to me what's going on in Russia? | [
"Before the USSR was formed, Crimea was part of Russia. When the USSR joined Russia and Ukraine, the region was transferred to Ukraine. When the USSR broke up, Crimea was left with Ukraine. It has a high percentage of Russians and some want to rejoin Russia. Ukraine would like to retain the territory. Russia sent t... | [
"[**Search before submitting**, especially when asking about current events. The search box is in the upper righthand corner of the page.](_URL_0_)"
] |
A question about the 'tree doors problem' or 'Monty Hall problem', this time with 10 doors. | [
"Interesting question! I'm assuming you're defining the problem as having 10 doors, 9 of which have a goat -- like the original problem with 3 doors, 2 having a goat. It seems to me, off hand, that if you get multiple turns, then you just keep going, picking arbitrarily as the host shows more and more goats, and ev... | [
"What's the probability of flipping two coins and they both turn up heads? That's pretty easy to calculate, it's 25%. But what if you flipped one already, and it was heads? Now the probability of both being heads is 50%, it's just down to the second coin flip. That's the idea behind conditional probability, you hav... |
why is it that I get “butterflies” and an upset stomach before doing something I’m nervous about, like an interview and as soon as its over I feel a sigh of relief? | [
"Your body is involuntary pumping you full of chemicals that aid your \"fight or flight\" reflexes. You're nervous about a new/unfamiliar circumstance so millions of years of evolution is telling your body to be prepared to get the hell out of there or fight if things go south... meanwhile your brain knows you're j... | [
"Someone correct me if I am wrong but it goes back to when we had much hairier bodies and when alarmed we as well as a lot of other mammals would puff up our hair to make ourselves look bigger. Think of how when you scare a dog or a cat it hunches up and its hair stands on end, same thing happens to us just we dont... |
Why betting the same amount on two boxers to win will not always give a payout due to differing odds. | [
"Any real-world bookie is going to adjust the odds and payouts so that they get a cut for themselves (the vig). They're not working for charity."
] | [
"Many places of business have their own telephone switch which has a limited number of outgoing lines. The outgoing lines are expensive, so to save money they will oversubscribe the lines as a pool. When someone in the building makes a call to the outside, the buildings switch will assign that user one of the outgo... |
For humans, sea water is not drinkable due to its high salt content. How do whales, manatees, seals, and other sea faring mammals stay hydrated? | [
"The short answer is: A. They get water from their food, and avoid salty food B. They may have modification to their kidneys to allow them to excrete more salt C. There a lot we don't know, marine animals are hard to study [Source and more details](_URL_0_)"
] | [
"This certainly came into play in battles in the Levant. It was a crucial factor in one of the most famous battles of the crusades, Hattin. The crusader army under King Guy was weakened and killed off as much by the heat and dehydration as by Saracen steel and arrows. Saladin cut the crusaders off from any water su... |
Is there any difference between the mass acquired by Higgs mechanism and the mass that results from energy? | [
"The mass acquired by the Higgs mechanism *is* mass that results from energy. Mass is just energy confined by a force to an average rest frame. You can think of interactions with the Higgs field as a force that keeps a massless particle confined, which then has mass according to E=mc^2 (just as most of the mass in ... | [
"I've thought about this quite a bit, and Carroll is absolutely right in saying that if there is an effect carrying away information - which obeys the laws we are used to - then we would be able to detect it. The problem is that if you really want to believe in god or the afterlife or whatever, then you can just s... |
Its 2018 and we still haven't developed a 100% working medicine against nail fungus, WHY? | [
"Because a 100 percent success rate with pretty much anything in medicine is almost unheard of. Also, nail fungus isn't exactly top priority. It's often a chronic condition, and normal nail deformities are often misdiagnosed as omychomycosis and therefore fungal treatments do nothing"
] | [
"Let's say you have a 7 lane interstate. At each end there is a toll booth. In the past payments were processed manually and there was a receipt that had to print, but the printers were slow. Only do much traffic could get through. Fast forward to the future where you pay with the touch of a button and get an insta... |
Why did muzzle loading firearms have the rod on the side of the rifle? aren't there quicker places to store it? | [
"To add to /u/bodark43's comment, I want to note that ramrods work best when they are more or less straight, particularly when dealing with rifled muskets (smoothbores are, as ever, wonderfully forgiving). Keeping the rammer tight underneath the barrel ensures that it is well-protected. Having it hang off the soldi... | [
"Not sure if this helps but what you describe is common for two things. A pan can be old, usually passed down through generations having been seasoned over the years from every meal that was cooked in it. Usually cast iron. The other thing that seems more likely to your question is when someone uses a traditional s... |
How come pregnant women have heightened senses? Especially smell to a ridiculous level. | [
"Women in general have a heightened sense of smell compared to men. That is amplified during pregnancy because mild poisonings from contaminated foods can be fatal to the fetus."
] | [
"I believe it's called Cognitive Bias. Basically, your brain only takes note what's going on when it happens, because that's when you think about it. Therefore, it seems like it happens all the time."
] |
Why do there seem to be so many last names in European cultures but in Korean culture there are only three big ones; Kim, Lee and Park? | [
"You may be interested in my more general discussion of the varying number of last names in a given society, touching briefly on the Korean case: * [As wives traditionally take their husbands' surnames, does that mean there are fewer surnames than in the past?](_URL_0_)"
] | [
"You might have to specify when and where, and what exactly you mean by segregation. If we're talking about pre-Civil Rights Movement \"separate but equal,\" segregation laws? Most signs you'll find of those times specify \"Whites,\" and \"Coloreds.\" Asians and Hispanics would counts as \"Coloreds.\" Some \"Colore... |
What will happen to Mickey Mouse when he becomes public domain in 2023? | [
"He won't become public domain. In 2022 they'll extend how long copyright lasts after the creator's death, just like the last two times."
] | [
"Corn and corn syrup based produces (which are a lot of different products) would get a bit more expensive. And maybe some percentage of the corn crop was changed to grow something else that was more profitable."
] |
I keep reading that Mitch McConnell won't "let" certain things move forward or be brought up for discussion/a vote. How can one man have that kind of power, especially if there are a number of others in Congress who want to advance it? | [
"The party with the most seats in the Senate elect a leader who then decides how the schedule of discussions will happen within the Senate. There are far more things to talk about and vote on than there is actually time for, so the leader can end up kicking things they don't want to bother with off the schedule ent... | [
"The nuclear launch system requires two authorizations - one from the POTUS and the other from the secretary of defense. It is technically illegal for the SECDEF to refuse to authorize under the POTUS' orders, however the VP in conjunction with the chiefs of staff or a majority of congress can declare the POTUS unf... |
For animals that sit around all day not doing much, like geckos, what is going through their head? | [
"\"Damn, this rock feels warm\" \"Holy shit is that another rock? I bet it's even warmer\" Seriously, though, they are on a constant search for warm objects to heat themselves up. We burn lots of calories to keep our bodies warm enough for life processes to happen. Reptiles don't have that luxury"
] | [
"How do you know a year has passed without looking at a calendar? I imagine they sense the temperature/climate changes like anything else."
] |
Why do my teeth stay sharp? | [
"Different people have different qualities of teeth. My wife and I are the same age, she still has those little ridges on the surface of her front teeth (forget what they're called), whereas mine are completely flat. I've also lost the points on my enscisors, she still has hers. Basically, her teeth are stronger th... | [
"Evolution. People who didn't get that weird feeling when dangling their limbs from the trees they were sleeping on were killed by cheetahs."
] |
The Alabama Senate Election | [
"Alabama has been a deeply red state (republican) for the last 25 years, and it showed no sign of changing. So by all accounts, it looked like the election between Roy Moore(R) and Doug Jones(D) was all but a formality. Until the news broke that Roy Moore had a unhealthy fascination with girls on the younger side. ... | [
"/u/the_alaskan has an [excellent comment on the history of Supreme Court confirmations](_URL_0_)."
] |
Why do we say "Suspend Disbelief" when "Suspend Belief" in my mind is the same thing? | [
"Because when you're watching a movie or a TV show, you *know* what you're watching isn't real. You *know* you're not supposed to actually believe it, but you suspend that disbelief in order to enjoy it more. This is the exact opposite of ignoring stuff you *do* believe."
] | [
"Because most people will see it as a lower value. Just like stuff are advertised for 19.99 and a lot of people will think of that as \"less than twenty.\" 3.699 gets rounded in people's heads as three-sixty, not three-seventy. In a couple of days you can train your self to see the real value, 19.99 actually means ... |
Hypnosis; does it work, and if so, how? | [
"I'm no expert, but from what I've experienced, it's a lot of placebo and participation. It's not like \"You will do as I say\" like in the movies, more so you have to consent to it mentally. It \"works\", but don't expect to become a zombie walking blank eyed slave."
] | [
"There are genetic markers in DNA known as SNPs (Single nucleotide polymorphisms), essentially single letter changes in DNA. Certain populations and ethnic groups have a makeup of genetic markers that are unique to the ancestry and history of a population. By looking at which markers you have and which markers are ... |
What determines whether gas exits your body as a burp or a fart? | [
"A burp is built up air in your stomach. Only by drinking, swallowing or eating will you get air in your stomach. You stomach isn't made to process air or gasses and sends it back where it came from: your mouth. Farts are gasses given off by bacteria that decompose the food in your intestines. When they take out va... | [
"Good question. I hope you get an answer from someone who knows. It is an amazing stress reliever and always a surprise when it happens. There is a special connection you have with people with whom it happens often. It seems a very human experience."
] |
if the calender is based on astronomy, how did they do it in the dark ages? | [
"I've not heard that astronomy was ever heresy. But in any case Europe didn't change calendars during the Dark Ages. The [Julian calendar](_URL_0_) adopted by Julius Caesar was in use until the late 16th century (later in some countries) when it was replaced by the Gregorian one which we use today. The (later) Jul... | [
"> If timezones are determined by your position on the globe Time zones are purely man-made things, and don't always line up the way you might expect. Your position on the globe is just a *guideline* for determining time zones. And if you look at an actual [timezone map](_URL_0_), you'll see that France and Spain... |
Why are there so few ISPs in the USA? | [
"There was a ruling made in the USA that ISPs should not be required to share cable lines with others. This was done under the idea that competing technologies would be so abundant that adequate competition would be maintained (like dial-up and satellite). This has not happened. So for a new ISP to pop up in the US... | [
"To put simply, infrastructure costs and up keeping requires a huge amount of money. Which cannot be covered by advertisements ."
] |
Why didn't many people evacuate Hiroshima and Nagasaki after the warning leaflets were dropped? | [
"Everyone is talking about the leaflets, but the other half of the story is that Japanese cities were being bombed every week. And these cities had more deaths and destruction than Hiroshima and Nagasaki (though caused with multiple bombs). Looks like 105,000 were killed from nuclear weapons while fire bombs killed... | [
"I notice a lot of these natural selection questions are a lot easier to understand if you question the fate of the opposite, in this case the answer becomes clearer if you ask instead \"What happened to the living things that didn't try their best to produce offspring?\" Well they had fewer heirs and eventually di... |
Can fireworks be seen from space? If so, would it be possible to see a timelapse of each part of the world celebrating New Years in order from space? | [
"No, **Fireworks are not large enough and barely bright enough** and way too low in height to differentiate them from other constant light sources at such high altitudes trough the atmosphere. --- You can see street lights from the ISS with a good camera resolution, and faintly with the naked eye, especially if the... | [
"I'm not sure I understand your question so let me explain how we observe galaxies. Andromeda is the largest galaxy in our local group of galaxies. With the naked eye it is visible as a [smudge](_URL_2_), not much more than a star. (Note that M31 = Andromeda in that picture.) However, with powerful telescopes we ca... |
Can you scare someone enough to give them an adrenaline rush to counter an allergic reaction? | [
"People going into a serious allergic reaction are already panicking, and this physiological response is not sufficient to counteract the effects of the allergic response. So no."
] | [
"There have been no studies on this. I've searched through a wide range of databases, and none of my textbooks really address what affects the make up of semen. Normal semen is usually alkaline, so my hypothesis is that either keeping your semen alkaline or swinging it more acidic is probably the biggest factor in ... |
What is stopping me from buying hundreds of Zimbabwe $100,000,000,000,000 bills and just sitting on them until the economy recovers? | [
"If at any point the economy actually recovers without the government collapsing the money will be revalued at significantly below face value. What this means is that the government will come out and say \"One new Zimbabwe Dollar is worth 1,000,000 old Zimbabwe Dollars\" and there will be a deadline to turn in old ... | [
"Do you mean besides there being almost no user base for an operating system that old? Or that it is no longer maintained by the developer of that OS, so no bug patches, security or driver updates? Or that the hardware it runs on is also likely to be ancient? Or that you won't have access to the latest API?"
] |
Why is it rude to point your finger towards others? | [
"It really depends but its most for strangers as you bring attention possible unwanted to a person that may not want it. Second, they know that you may be talking about them which they may not know if its good or bad and you may not tell them what is said. IMO"
] | [
"If you mean scientifically as in an objective sense (by hard, quantitative proof, for example), then not entirely. But the field of [evolutionary psychology](_URL_0_) deals with this. Showing off is the demonstration of traits that mark an individual as superior to the rest of the group. In other words, in primiti... |
What are some good books for learning about Scandinavian medieval history? | [
"I quite like: Birgit Sawyer, P. H. Sawyer, *Medieval Scandinavia: From Conversion to Reformation, Circa 800-1500* (1993)."
] | [
"Check out Yuri Slezkine,[ *Arctic Mirrors: Russia and the Small Peoples of the North*](_URL_0_)"
] |
If one swallows their own blood, will that slow the process of bleeding to death if in a situation of much blood loss? | [
"nope. When you die from blood loss, its because you no longer have enough blood in your circulation to maintain enough oxygen to the tissues / or maintain enough pressure to keep the blood moving. drinking blood will firstly make you very nauseous, and it will then be broken down into protein, then amino acids whi... | [
"This story comes from the *Alexander Romance*, a highly fictionalized collection of Alexander legends that has come down to us from antiquity in addition to the more reliable histories. In the *Romance* Alexander does indeed crawl toward the Euphrates in an apparent suicide attempt. I have not found any mention in... |
Is the radio Bubble surrounding our solar system dragging behind us as we rotate around the center of the Milky Way? | [
"The speed of light is the same in all reference frames, so our motion relative to any observer would result in a redshift or blueshift, but the radio bubble remains spherical from it's source. Now if we were moving close to the speed of light relative to some observer, than you do get some interesting effects such... | [
"For the same reason people worry about cell phone usage while driving but don't care about the radio. There's like zero chance of the cell phone igniting the gas or anything like that, but if you are talking on your phone, you aren't paying attention, and might drop the pump while it's running or something. Also, ... |
Why there are many torrent and file sharing sites but The Pirate Bay seems like the only one getting hassled? | [
"You go for the big ones first. Not only to send a message but to affect the most amount of people."
] | [
"Country specific ones follow the laws of that country. You can search for Tibet freedom on _URL_0_. but not _URL_1_ or Google.can Google was given a choice by Chinese gov. Either you make the search engine follow our rules, or you don't do business in China at all and China blocks _URL_2_ entirely"
] |
Black holes as Bose-Einstein condensates? | [
"Although I dont know any details on this subject, this is not a new idea: I recently heart a talk about this by Georgi Dvali. He also has some papers on it: _URL_1_"
] | [
"Every object's gravity is stronger the closer you are to it. Until you get close to its event horizon, a BH's gravity is almost the same as that of ay other object with the same mass."
] |
- why does a glass of water taste so different after sitting out for a day or so? | [
"Somebody else asked this a few days ago. If I remember right, the answer was that it slowly absorbs co2 from the air, forming carbonic acid, which tastes like flat soda water. I don't know if that's true or not, but it was the answer given last time."
] | [
"As the wood ages, the tone generated by the wood changes (usually in a desirable manner). Since the wood in older guitars has aged, the tone from that wood \"sounds better\". Also, when you are dealing with analog circuitry, there are quirky tones and characteristics generated by the components in those older guit... |
Why it sounds like the ocean in a shell | [
"As far as I know, it's the blood flow in your ear amplified."
] | [
"Basically you are hearing the muscular waves or [peristalisis](_URL_1_). More detailed explanation here at [Discovery Health](_URL_0_)."
] |
How is it that I can count a small number of items at a glance, but I have to count larger groups one-by-one? | [
"Its a really neat thing called subitizing, and you learn it before you learn how to count. Three-week-old babies can tell the difference between one, two and three things, even before they can count! In fact, other animals can do it too! Mammals, and some birds, like crows, can subitize. There are two types of sub... | [
"You know how authors write long stories using letters and words and the rules of grammar and writing? Its just like that. With enough knowledge of how to read (math), these kinds of explanations make sense. Dont feel bad that you cant read it. Its just like if you tried to read a story in a language you dont know.... |
Does the "location" of a headache say anything about its cause? | [
"For some reason I can't see the responses, so I'm not sure if this has been said, but yes absolutely. Tension headaches are usually towards the back, sinuses towards the front, and dehydration is usually all over. It gets more into detail than that, but that's the basic idea of it."
] | [
"> If timezones are determined by your position on the globe Time zones are purely man-made things, and don't always line up the way you might expect. Your position on the globe is just a *guideline* for determining time zones. And if you look at an actual [timezone map](_URL_0_), you'll see that France and Spain... |
Some ancient Egyptian mummies have blonde and red hair. What does this mean regarding their ethnicity? | [
"_URL_0_ My own guess is that much like North Africans today there was no 'typical' Egyptian by the time of the Pharaohs, since it's at the cross-roads between Asia, Africa and Europe. This is why I take all the claims that Jesus, Cleopatra or whoever was this or that colour with a massive pinch of salt, since peop... | [
"I just want to take a moment to thank Dan Monroe, Director and CEO of the Peabody Essex Museum in Salem, MA. His continued neglect of the Phillips Library Collections, and ensuring that the collection was unavailable both physically and digitally to researchers over the past 2 years (and for the forseeable futur... |
Why do Netflix and Amazon Prime/Instant Video have almost identical movie libraries? | [
"Exclusives cost a LOT of money. It's easier just to pay the minimum to get the movies/TV shows on their service."
] | [
"Are you watching blu ray? Is it a good transfer? (Example: despite being made in the early 80's Blade Runner Ultimate Director's cut blu-ray is one of the best you can buy) How good is your blu ray player? Is it a ps3? All of these factors contribute to what you determine as a home viewing experience being inferio... |
Why is count and county pronounced differently to country? | [
"The pronounciation is based on the etemology, or origins of the word. Country comes from a word that means terra (another way of saying land) and county comes from the root word comitatus which means a business agreement. In short they are pronounced differently because they come from two different word meanings/b... | [
"Uk Language? Pills will get you proper munted. Like out yer bonce. It'll make you think chubbers are buff and pull shapes all night. Draw makes you want to cotch. Then you get bare munch and need to smash a mint Aero and Potnoodle, maybe a maccie d's. Chang will make you Brap."
] |
What would the worldview be for an average soldier at the Battle of Kadesh? | [
"I initially was extremely sceptical, as the thread question is both wide-ranging and oddly specific. However, reading your explanatory post I got a much better idea of what it was you are looking for. You raise several valid points and I think the questions you are asking are interesting ones. But you mostly answe... | [
"Hi /u/friendships4everyone, Your post has been removed as it breaks our rules on appropriate submissions. > Also, if you're looking for any sort of debate. What do you think of this man's actions? Did they do anything when he inevitably died a few second later? Were his actions meaningful? /r/AskHistorians is not ... |
Why does Caesar treat non-Romans i.e the Celts in his writing with far more disdain than Tacitus describes the Germanii in his? | [
"Caesar had to justify his war, so he portrayed the Gaulish tribes as a threat to Rome and its allies, otherwhise the senat would have put an end to his campaigns. Tacitus on the other hand was a historian, who portrayed the Germanii as a tribe with roman values, to show the Romans how low they have fallen, if eve... | [
"Did you read [this criticism](_URL_0_)? It talks about how the Seralini paper misinterpreted tumors, failed to give detailed data, and lumped together tumor types that are very different. Basically, since he used a breed of rats that get tumors naturally, if the statistics are not robust and the pathology is not w... |
Why does the flame on a lighter always point upwards, no matter which way you rotate it? | [
"This is very simply to do with convection. The gas in the flames is hotter than the surrounding air so expands, becoming less dense. Less dense gas rises from convection and so the flame rises."
] | [
"This won't be the most in-depth answer but it's kinda like this Plants and tree love sunlight. They use it in photosynthesis to create this neat stuff called glucose, which is pretty much sugar. Allows them to grow n stuff. So the higher they get the more likely they are to get sunlight, which causes this thing c... |
Why do physics break down above the Planck Temperature? | [
"It's not so much that physics breaks down or that it's the hottest possible temperature, but rather that we can't really understand things that hot without knowledge of quantum gravity (because particles could be colliding with such great energy that they form black holes), which we don't understand well enough."
... | [
"Because that's the top speed you can safely do, assuming ideal conditions (at least that's the premise). When it's raining, snowing, cold or dark, this changes it from being ideal conditions. It's not safe to drive at that speed any more. Worse it is, the slower you need to go, especially if your visibility is imp... |
How is it possible that the Voyager 1, launched by NASA in 1977 to learn more about the solar system and beyond, is still able to communicate with NASA from such a great distance? | [
"that satellite communicates with NASA with radio I believe, NASA has very sensitive detectors that specifically look for these waves, and the satellite, even though it's very far away, has a direct line of sight towards the earth. radio waves from cell towers on earth traverse the earth by bouncing from the earth'... | [
"This particular technology is called AJAX, which is more of a set-method-of-doing-things which evolved overtime. Basically it's a series of function calls that allow a Javascript script running on your browser to make a call to a website and get new information. AJAX has been around for a while, with Microsoft add... |
What is a quiescent active region on the sun? | [
"An active region is a region with strong and complex magnetic fields and is prone to frequent flaring events that change the field structure significantly. But even an active region doesn't flare on a large scale all the time. When it isn't flaring it's called \"quiescent\". Quiescent can also refer to parts of th... | [
"Because the secondary charge is packed in the shape of a star or a smiley and a small charge ignites and inflates the shape before the secondary charge blows up. _URL_0_"
] |
Why is Apple so slow at responding to market demand and product development (eg. not getting a large screen phone out despite obvious demand or slow iWatch/iTV development) | [
"Apple doesn't want to just make a product to have a product in a category. They want to make a product that revolutionizes a category and gives them an entirely new stream of high-value business. Making a TV, a watch, or another phone with some varient parameters doesn't match that strategy until they can figure o... | [
"If you ask for 1 pen, it costs you two dollars. If you ask for 100 000 pens, they will only cost you one dollar each. I prefer selling you 100 000 pens at half price, than selling you 1 at full price and have 99 999 sitting around doing nothing. In a similar way, if you ask for a small amount of money, you pay a b... |
NTFS file permissions VS share permissions. | [
"OK, so imagine you are running a private Art museum (your hard drive). In this museum you have hundreds of pieces of art (your files/folders). You determine that these piece of art may only be worked on by specific \"Artists\" (users or groups) and nobody else. This is how NTFS permissions work; only certain artis... | [
"Ha, I wrote a paper on this once. If I had to boil it down to one cause... I would say its the fact that in the US railroad infrastructure is (mostly) owned by private companies, which is fairly unique in the world. The US has the most sophisticated and impressive freight railroad transportation in the world (thin... |
If we bred humans selectively like we do dogs, would genetic syndromes be analagous with "breeds"? | [
"Races would be analagous with breeds. Races look different. Races have different genetic tendencies... there are certain diseases that are prevalent only in certain ethnic groups. Now I'm going to go hide under my bed for fear of being branded a racist and thus tarred and feathered for the next 20 years."
] | [
"People are very bad at assessing long term risks. We haven't evolved to handle dangers and risks of long term activities. Even though we intellectually know the risks, it is hard for us to translate that intellectual knowledge into behavior, as it does not tell our instincts that it is dangerous. We instinctively ... |
What is the Kansas City Shuffle and why is it called that? | [
"It's where you feign to be something that lures your opponent into a false sense of security; then you abuse their belief in your facade to attack/manipulate/violate/exploit them. E.g. I pretend to be a cripple. They assume I cannot walk. I bet them $10 I am faster than them. They agree. I sprint and win the race.... | [
"[The Straight Dope covered this](_URL_0_). Basically, they started out as being made by two different production teams, but after a certain point, they became essentially interchangeable, but they kept both names going."
] |
What's behind magnetism? | [
"Here's an explanation by [Richard Feynman,](_URL_0_) which goes over the difficulties of explaining this. At the most basic level, an unanswerable question. We know some things though: Magnetism is, in many ways, the marriage of electric charge and special relativity, as yuo said relative motion--resulting in elec... | [
"If something was there it would pull on other things and change how they move. Since we don't see anything like that, probably nothing there."
] |
What effect does a spinning object have on space time, if any? | [
"Yes, a spinning source of mass creates a *frame dragging* effect around it. For some objects, there may even be a so-called *ergosphere* around the object, which describes a region in which all particles must actually co-rotate with the gravitating mass. That is, there is no such thing as a stationary object in th... | [
"This is the whole \"paradox\" in the twin paradox. The resolution to be paradox is the fact that the motion of the twins is **not** symmetric. In order for the twins to meet up at the end of the experiment, at least one of them must accelerate, and therefore **change inertial frames** in order to turn around. In t... |
Why cities can't rebuild abandoned buildings? | [
"fixing a building is often more expensive than building a new one. Especially if the building has lead/asbestos in it. Whatever remains is probably out of date and undesirable, cast iron plumbing, paper wrapped wire, ect. And yeah, its not their building (though it probably will be for lack of tax payments)."
] | [
"For large corporations 100 stores is a little at a time. Closing stores actually costs money, it is more efficient to cut off 100 property costs at once"
] |
How can a person born with no hearing, sight, or sense of touch know he/she is alive? | [
"I think that they would know that they are alive, even if they couldn't articulate it. Classical theory says that those are the 5 senses, and various philosophers (Stoics maybe? Or is it Epicurus) say that all knowledge is derived from those 5 in one way or another, but modern scientists can do them one better, ev... | [
"The same way that my computer monitor is made up of little tiny dots of silicon and glass at one level, but at another level is showing a beautiful painting. It's all in the level of detail at which you wish to look, and the *organization* and *interaction* among the component pieces. If I just took a random 34982... |
Are there any cases in the Middle Ages or earlier of an extremely wealthy person spending so much in a poor location that it plunged the local economy into chaos? | [
"Mansa Musa. He gave out so much money on his pilgrimage to Mecca that he inflated the economy of an Egyptian city (Cairo maybe?) for a decade (I believe). Regardless, it has happened so there is some fact to it."
] | [
"Sorry, we don't allow [throughout history questions](_URL_0_). These tend to produce threads which are collections of trivia, not the in-depth discussions about a particular topic we're looking for. If you have a specific question about a historical event or period or person, please feel free to re-compose your qu... |
What happens when I power off or unplug my computer while it's installing an update. | [
"I like to think of it like this: Lets say you are fixing a roof on a house (you are the only one that can do this), right after you tear off the roof, but before you you start rebuilding the roof, you get shot. Damn no one can use that house, as you are the only one that could fix the roof. * \"You\" -- Update Pro... | [
"Yes. It matters very deeply in fact. Your body uses photoentrainment to set its wake-sleep schedule, and proper photoentrainment is crucial in learning, and irregularities [have been shown to increase mortality](_URL_0_) (pdf file) by interfering with neuroendocrine (~hormonal) control of many systems. This may be... |
Why does black powder need to be granulated? | [
"Reactions happen on the surface of a substance. Let's say you make a solid block of black powder (OK, guess it's not actually powder any longer) - what'll happen is that the surface of it will burn. If you have granules or a powder, the amount of surface that's available to burn is suddenly much, much bigger - tha... | [
"All of the accelerating force happens inside the gun - when the bullet is out of the barrel there is nothing to make it go faster than it was going at the moment it left the barrel."
] |
How are the "leaf stains" on concrete formed? | [
"it's like acid etching but in reverse, concrete is acidic and decaying plant matter has an alkaloid base which results in staining upon exposure."
] | [
"I'm more of an ecologist / entomologist in training than a botanist, but [this](_URL_0_) might help. The grass on your lawn certainly isn't like fungus and it isn't one big colony. Each grass plant has a few blades, but each grass plant is an individual. If you let your grass grow long enough (your neighbors woul... |
Shell advertises that their gasoline is "nitrogen-enrisched". I have also heard of putting acetone into gas to improve mileage. Are these, or any other chemicals, helpful additives to gas and how do they work? | [
"The nitrogen enriched claims are really just talking about the type of detergent shell puts in their gas. They claim that these nitrogen enriched molecules react with the carbon buildups in the combustion chamber to break them loose and return your engine to \"like new\" condition (in the combustion area at least)... | [
"I think the answer to this question is going to be complicated, depend on the ratio of water and acetone, and ultimately have to do with the thermodynamics of how the acetone and water molecules arrange themselves. But to be overly simplified, I think you could just state that the acetone/H2O molecules fit togethe... |
When did the divergence and differentation of the Romance languages occur? Was this already happening before the fall of the Western Roman Empire? | [
"I think this is a better question for /r/asklinguistics. The concept of the subreddit is the same except it's for linguistics! Historians usually don't involve themselves with language."
] | [
"Even more common in some. In most (if not all) latin-based languages, all verbs in infinitive form end in the same suffix(es), for example, in portuguese they end in either -ar, -er, -ir or -or. We also have suffixes for diminutive and augmentative forms, so that makes it easier to rhyme as well."
] |
What happens when no one buys government bonds? | [
"The offered interest rate increases or the sell price decreases, both of these increase the yield. The yield keeps going up until the country can sell the necessary quantity of bonds, someone will eventually buy the bonds."
] | [
"I don't go to school, sorry kids no tax for you. Fuck da poolice, sorry officer no tax for you. I am a young, fit and healthy person, eh hospitals can have a tiny bit. Defense? BOOO MAKE PEACE NOT WAR! None for you buddy. 100% on roads, I use roads. If everyone thought like this, Results = schools underfunded, h... |
How do cartoon animators figure out when to make characters blink? Do they keep constant track of it? | [
"Animator here. There are a few reasons to use a blink. But there's no set rules, just when it feels right. Usually when a character turns his or her head, or just moves it a good amount, I will add a blink just because it's a natural thing that most people do. If the character is moving their mouth up, you want ... | [
"Think of it as a lemonade stand, a hot dog stand and a candy store all in one. You have all those people selling stuff at different prices and you have all the customers buying. Now everyone is impolite and yells over the other one. So you have signals and colours to identify each person. So you send a signal to l... |
If I were to wear red tinted contact lenses, would it help with my Red-Green colour blindness? | [
"You can simulate color vision by wearing a tinted lens in one eye and a differently tinted lens or no lens in the the other eye. For example, a red lens in the left eye and a green lens in the right eye. If you look at a grey object, it will appear equally bright to both eyes. If you look at a red object, it wil... | [
"For one year? No. Halting humans' effect on the environment will require a permanent shift in how we act. At the moment, this permanent shift won't be too painful - however if we put it off for more than a couple of years it will be. It would require everyone to produce less greenhouse gas - to use less electricit... |
Why are most pain relievers also fever reducers? | [
"The pain relievers available over the counter are either NSAIDs (like aspirin, ibuprofen, naproxen) or acetaminophen (aka paracetamol or Tylenol.) Both act in some way to reduce the effect of a group of enzymes called cyclooxygenases (COX) which are important in producing inflammation. NSAIDs inhibit COX all over,... | [
"Three ways: * A shorter form of the name of the compound or active ingredient. eg: Tylenol is derived from the chemical name for the compound, N-ace**TYL**-para-aminoph**ENOL**. * They licensed the drug under a certain chemical name and use that. FDA: Acetaminophen is the sold name of Paracetamol * They use somet... |
Can someone break down what the hell is happening? | [
"A popular admin was recently fired. This decision was not communicated to the moderators of several subreddits who relied on her as a go-between between them and celebrities (for AMA threads). This decision, along with a series of other acts showing poor communication between the admins and moderators caused the m... | [
"Basically its a chip that performs basic arithmetic math known as an ALU (Arithmetic Logic Unit) which takes in inputs and outputs/converts to a display. Edit: I know this is ELI5 but this stuff is very complex. I gave a high level answer and if you want to know more maybe /r/askscience would be a better place for... |
What 'pixel density' do your eyes see in? | [
"[Here](_URL_0_) is basic information on rod & cone density, which would be the closest approximation to \"DPI\" in the human eye. However, note that it's a far more complex question with what we see, since as you can see there are varying densities. Also, cones operate in analog, which can give a much greater appa... | [
"It's due to the application of a type of algorithm known as [subpixel rendering](_URL_1_), which is a form of [anti-aliasing](_URL_0_). It makes small text easier to read on LCD and OLED displays."
] |
How do historians treat literature? | [
"Literature is regularly utilized, it is usually treated as another source for the time period in question. It can establish at least two 'truths': what the author perceived of the topic they wrote about and what that can tell us about the environment they wrote in. A good example would be *All Quiet on the Western... | [
"Hi everyone. Since this is the kind of question that can attract non-expert responses, just a friendly reminder that all responses must comply with [sub rules](_URL_0_), and that [personal anecdotes](_URL_1_) are explicitly not permitted in /r/AskHistorians."
] |
Why does one arm/nose/ear hair grow longer than all the others? | [
"Somebody please answer . now I really want to know."
] | [
"_URL_0_ About every 2.5 hours, your \"primary\" nostril will switch over, with the other nostril clogging up. This is independent of whether or not you have a cold, but it is much more noticeable due to the extra congestion from the illness."
] |
How dangerous are the magnetic fields of domestic consumer goods? | [
"[This paper in 2010](_URL_0_) suggests there is some effects, not in DNA damage but in cell replication. The paper still mentions that findings are still heavily debated, citing problems of reproducibility. In the study they're using 0.1 - 0.5 mT (which is about 1 - 5 Gauss), and in the 2010 study I cited they use... | [
"search askscience for a better answer but it would have to be very strong, I think there might be affects before you get strong enough to make the dimagnetism of water what kills you"
] |
What's to stop someone from broadcasting a radio frequency that is already taken by a local station? | [
"He will quickly be located and shut down by the FCC. Plus, he would need some powerful broadcasting equipment to disrupt the radio station over its whole area. That equipment is expensive to get and too big to hide."
] | [
"It varies, but not much individually. The problem is when everyone does it. It's kind of like why you're taught not to pick a flower from a garden when growing up. You alone, picking one flower, is not going to be noticed, it's not going to affect the plant or garden overall, but if *everyone* picks just 1, very s... |
How does the turning of the blade in a wind turbine generate electricity? | [
"Wind turns turbines on a shaft with magnets on it, surrounded by copper wire loops, and that causes something called magnetic induction, but the easiest way to think about this is like this: Motors are the exact same thing, but rather in this case electricity charges the copper coils, which pushes the magnets and ... | [
"Most hairdryers use brushed DC motors. The Teslas use 3 phase AC induction motors. And size matters, too."
] |
What if a country doesn't accept a surrender? | [
"It depends on a few factors. The process of surrendering on the national level isn't as simple as just throwing your hands up in the air and saying \"I quit.\" Representatives will negotiate terms for the end of the war. Basically, the losing party says \"we want to stop fighting, what are your demands?\" If the d... | [
"Could you perhaps present us with your original source so we can see what the author writes about it? I *think* I know the answer, but I would like to know what exactly the author wrote. Also, could you remove the bonus question? We do not allow discussions of events after 1993."
] |
How do animals with numerous offspring know when one of their young is missing/astray if they are unable to count and quantify them? | [
"When there were classmates missing in class, did you only notice after counting all your classmates?"
] | [
"Efficiency! A small number of specialized *breeding caste* is enough to supply eggs for the whole hive. Keep in mind the queen is not *in charge*, she is just another specialized caste like workers or soldiers or drones. Worker bees can override and evict a queen if circumstances require, and some ant nests have ... |
Do taller people's hearts beat more quickly than shorter people's? | [
"Not necessarily faster, but their hearts tend to be bigger to push more blood around per beat. Because of this, they are also more prone to heart arrhythmias."
] | [
"Orthopaedic surgeon here... The real answer is that we have no idea. Some people will say that it has to do with pressure changes in the atmosphere and how that effects scar tissue or healing fractures. However, this doesn't pan out when you actually try to look at it. Not everyone gets this sort of pain, and even... |
When it's cold out, why does frost form on my car's windows, but rarely on my house's windows? | [
"Because your car gets below freezing easily overnight, when it is off. But your house is heated so stays warm all the time. This keeps your window temperature above freezing, unless it gets really really really cold."
] | [
"It does! Water at 10 C is about 4 times as viscous as water at 90 C. Because the viscosity is so low at any temperature you can't see or feel the difference, but it affects the sound of pouring water in a way you can hear. _URL_0_ _URL_1_ Viscosity arises from the interactions between molecules, and for liquids is... |
Where does Canada's friendly and generally optimistic nature come from? | [
"With a tenth of the population of the US, it cuts down on stress. People are pretty chill, no real reason to be a douch, just be friendly.."
] | [
"This is a great question, which strikes at the core of the history of European folklore studies. Early scholars of oral tradition were diffusionists - along with many scholars of the other disciplines of the humanities. When they found examples of frame tales from the literature of the early, impressive Indian civ... |
Why is it that one is able to 'hear' their thoughts? | [
"This was covered previously with a [lengthy discussion](_URL_0_) and many high praises of various episodes of RadioLab."
] | [
"Need more detail! Was the pilots voice being played *through* the speakers? If so, are your headphones wireless? Or did the headphones not cancel out the noise like you thought they should? Edit-- * If playing through the speakers, your headphones are wireless and the signal sounded fine: digital comm problem (im... |
Why does WiFi range seem to be determined solely by the router/AP? | [
"The stronger transmitter also has a more sensitive receiver. The signal threshold that your mobile device can detect is higher than what a dedicated router can pick up, allowing the mobile device to be compact and the router to pick up the slack on both sides of the communication."
] | [
"You're on the right track. Microwaves, as you'd expect, heat with waves. Depending on where you are in the waveform, you may get lots of heating or hardly any, so the food doesn't always heat evenly. Rotating platters improve this a fair bit, but it's still not perfect. This gets worse if anything's frozen. Liquid... |
What are the noises a printer makes when you first turn it on? | [
"It's moving all of its arms inside to make sure they still work after the last time it was used. This is to make sure it doesn't try to print something if it's broken and break itself more then spray ink/toner all over the mess."
] | [
"We don't, but is Jurassic Park a better film with a T-Rex that roars, or one that clucks like a chicken or coos like a pigeon?"
] |
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