Is it possible to determine the location at which a photo was taken based on the moon's position in the sky?

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• Is it possible to determine the location at which a photo was taken based on the moon's position in the sky?
• If I wanted to refrigerate 1 litre of water to 5 degrees celsius, would it be faster to place 500ml into 2 bottles (in the same fridge) as opposed to 1 litre in 1 bottle?
• A particle of light is called a photon. What's a particle of radio called?
• Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology
• How should I calculate who did "better" on a test?
• Is radiation given out from everyday objects harmful towards us?
• Will melted bismuth stick to glass?
• What is the amount of usable energy in Nuclear Fission?
• Can a black hole have lumpy mass distribution?
• Why do certain mental illnesses or physical conditions cause us to experience clear sensory hallucinations (people's faces, voices speaking in sentences, etc.) rather than just sensory garbage?
• When, for example, the Big Bang is described as having occurred 13.7 billion years ago, how is this quantifiable?
• On a Rubik's cube, can any sequence of moves, if repeated enough times, eventually return the cube to its initial state, such as starting and ending solved?
• How can a small child learn 3 or more languages at once when learning to speak?
• Would a sudden loss in cabin pressure on an airline flight result in all of the soda cans onboard exploding?
• When I consciously blur my vision, what is actually happening in my eyes?
• How can an acid corrode through other materials?

Is it possible to determine the location at which a photo was taken based on the moon's position in the sky? Posted: 09 Dec 2015 01:46 AM PST If I went outside on a cloudless night or day and took a photo in which the moon was visible, would be possible to determine where this photo was taken? Or does the moon's location in the sky not provide enough information to be able to conclude that? What other data could be plugged into the equation so as to allow us to come to such a conclusion? Would the time of day and year help? submitted by Masterbajurf [link] [107 comments]

If I wanted to refrigerate 1 litre of water to 5 degrees celsius, would it be faster to place 500ml into 2 bottles (in the same fridge) as opposed to 1 litre in 1 bottle? Posted: 09 Dec 2015 01:15 AM PST submitted by Isaacium [link] [8 comments]

A particle of light is called a photon. What's a particle of radio called? Posted: 09 Dec 2015 01:10 AM PST submitted by UserNamesCantBeTooLo [link] [18 comments]

Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology Posted: 09 Dec 2015 07:02 AM PST Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Economics, Political Science, Linguistics, Anthropology Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! submitted by AutoModerator [link] [1 comment]

How should I calculate who did "better" on a test? Posted: 09 Dec 2015 08:57 AM PST My friend and I race on math tests to see who can finish first. He usually beats me by a few minutes but I usually get a higher grade. Is there an optimal way to determine who did "better" in terms of both time and grade, other than the obvious (grade/time)? submitted by physikitty13 [link] [6 comments]

Is radiation given out from everyday objects harmful towards us? Posted: 09 Dec 2015 01:40 AM PST I'm aware technology gives out radiation as I've been told by people that if you sit too close to a television, you get radiation. However, the reason why I am asking this question is because of a video I just watched and it slightly bugged me and made me paranoid. Should we be concerned on the radiation given from our technology? Is this guy in that video overly paranoid for nothing? submitted by God-Macabre [link] [13 comments]

Will melted bismuth stick to glass? Posted: 09 Dec 2015 06:23 AM PST I have an art project I have been considering, and I know that bismuth has a much lower melting point than glass. I should specify; I keep any and all jars I get from food-pickles, marinara sauce, etc, because I really hate to throw away perfectly good glass, and we don't have glass recycling around here. I was thinking, since I live in an apartment (no access to a shop for other melting other metals), that a low melting metal like bismuth could be cool to dip the jars in to create vases and such. Secondly, I suppose I'll ask- if it will stick, would it b safe to create drinking glasses from these, or purely ornamental? Would they last in the dishwasher, do you think, or does bismuth "tarnish" or..rust? I'm sorry if I sound very ignorant. Thanks for taking the time to read! submitted by IzzyBlue [link] [2 comments]

What is the amount of usable energy in Nuclear Fission? Posted: 09 Dec 2015 05:25 AM PST By this I mean: What is the percentage of the total energy output that we can effectively use to heat water in the reactors? I believe I have read somewhere that the 11% of beta decays is not promptly usable for this but I am afraid I don't fully understand the matter. submitted by s0rry_ [link] [1 comment]

Can a black hole have lumpy mass distribution? Posted: 08 Dec 2015 12:57 PM PST Is it possible for a black hole to have non-uniform mass distribution, and thus, have a gravitational field that also isn't uniform? To pin down some hypothetical parameters, lets assume we start with a very large black hole, that has neutral charge, and is not rotating - as much of a vanilla black hole as possible. However, the black hole is massive - perhaps the event horizon is a full light-year in diameter. We then aim a lump of mass directly at the center of the black hole, so as to not induce any rotation. Every reference I can find online invokes the 'no-hair' theorem and thus states that the gravitational field would be uniform; however, as I understand, the no-hair theorem is a statement about the long term evolution of a black hole, and would be to disregard short term dynamics. If a black hole is a full light-year in diameter, then I would naively believe the in-falling matter could not reach the singularity in an instant. Is there a flaw in that reasoning? Does this not provide a mechanism to learn about the internal structure of a black hole? If we had devices that could measure the gravitational field of a black hole with enough sensitivity, could we not learn about its internal structure, theoretically? submitted by antiduh [link] [3 comments]

Why do certain mental illnesses or physical conditions cause us to experience clear sensory hallucinations (people's faces, voices speaking in sentences, etc.) rather than just sensory garbage? Posted: 08 Dec 2015 12:11 PM PST Let me try to explain that question better because I couldn't condense it very well into a concise title. Certain illnesses (schizophrenia, bipolar disorder, delusional disorder, etc.) or physical conditions (brain damage, brain tumors, etc.) can cause hallucinations such as seeing people who aren't there, hearing voices speaking in complete sentences, things that are very clear, very normal. But as far as I understand, these are caused by the brain receiving sensory input that isn't from an outside source - it's essentially seeing a signal where there's only noise. So why doesn't it seem like noise? Why see clear images or hear clear voices rather than just jumbled crap (seeing colors or splotches, hearing cutting in and out or sounding garbled, etc.)? submitted by graaahh [link] [16 comments]

When, for example, the Big Bang is described as having occurred 13.7 billion years ago, how is this quantifiable? Posted: 08 Dec 2015 10:46 PM PST There are a few issues that I do not understand here. I can see that such a figure is easily comprehensible and relevant, but: A year is a unit of time determined by the progress of our planet around a star, so how can this be considered a constant to the beginnings of the universe? Didn't the Big Bang mark the beginning of time itself, and, consequently, wasn't time itself warped and changed during the early stages of the universe? Lastly, how the hell do you come up with such an estimate? submitted by potatoinmymouth [link] [3 comments]

On a Rubik's cube, can any sequence of moves, if repeated enough times, eventually return the cube to its initial state, such as starting and ending solved? Posted: 09 Dec 2015 02:19 AM PST Also, are there any sequences of moves that need to be repeated hundreds, thousands, even millions of times in order to resolve the cube when starting it solved? submitted by TriangularHexagon [link] [10 comments]

How can a small child learn 3 or more languages at once when learning to speak? Posted: 08 Dec 2015 12:45 PM PST My nephew is growing up learning Dutch, Croatian and English. The father is Dutch, the mother is Croatian and they both speak English to each other. How can a kid's brain make sense of this and categorize everything in the correct language? And why do these kids not mix different languages in 1 sentence? submitted by ecky--ptang-zooboing [link] [4 comments]

Would a sudden loss in cabin pressure on an airline flight result in all of the soda cans onboard exploding? Posted: 08 Dec 2015 08:50 AM PST submitted by zhebein [link] [6 comments]

When I consciously blur my vision, what is actually happening in my eyes? Posted: 08 Dec 2015 10:53 AM PST submitted by KazuyaAnno [link] [2 comments]

How can an acid corrode through other materials? Posted: 08 Dec 2015 12:56 PM PST Is it because the lone ion hydrogen is reacting with other materials or something else? Plus the grammar on the question above might not be correct so ask if there is any confusion ;) submitted by OSsloth [link] [3 comments]

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Do multiple wounds heal slower than just a single one?

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• Do multiple wounds heal slower than just a single one?
• Can we naturally exhaust our neurotransmitters?
• How do we know that Pi goes on forever?
• Is a nebula visible from within?
• Does the Universe have a center of gravity?
• If a candle was lit in 0 Gravity, which way would the tip of the flame point?
• Would having a more efficient/ faster brain affect our perception of time?
• Why does EMP fry electronics, and does turning them off actually protects them (like they do in movies)?
• Cities are usually warmer than their surrounding areas. Why doesn't their heat cause convection and carry smog away?
• Is time different at different points on the surface of PSR J1748-2446ad?
• What is better for the environment, a bidet or toilet paper?
• What Did Adult Humans Act Like Before Society?
• How big is the "shine" of a star when compared to the actual size of the star?
• Did scientists notice empirical deviations from classical mechanics or classical electrodynamics before Einstein offered a theory to extend them?
• Why is it that passing a magnet through coils produce an electric current?
• If you shake a container of liquid, does a partially filled or full container experience more structural stress?
• What's the difference between a Lornez system and chaotic system?
• If the expansion of the universe can be slowed by gravity, as in the big crunch theory, does that mean space is not expanding near massive objects?
• If the entire universe was made of anti-matter instead of matter, would any of the established physics and chemistry laws be any different?
• Why did the oxygen level rise and fall as it did in the timeline 200 to 400 million years ago?
• How exactly are bosons derived from "connection fields", and how are connection fields derived from symmetries?
• How can an electron be in more than one place at once?
• What is the potential output of Wendelstein X-7?
• Why does Bradford Reagent contain acid?

Do multiple wounds heal slower than just a single one? Posted: 08 Dec 2015 04:20 AM PST So lets say someone has a single wound like a simple cut or something, would this wound heal in the same amount of time as if the person had like 3 or more wounds yet identical and in other regions of the body? submitted by Phaillip [link] [180 comments]

Can we naturally exhaust our neurotransmitters? Posted: 08 Dec 2015 05:11 AM PST So as I know it serotonin and dopamine can be exhausted by certain drugs, and as a result we won't feel as good before they were all used up. The rate of the production also has something to do with this I believe. But say if we were to be naturally happy and social and being around someone we love (oxytocin?) all the time could we exhaust these stores and end up having a natural 'crash' where we don't feel as happy social or in love until these transmitters are restored? thanks in advance :) i'm very curious submitted by soilavalex [link] [10 comments]

How do we know that Pi goes on forever? Posted: 07 Dec 2015 07:58 PM PST I was wondering about Pi. How do we know that there is no final end to its decimal places? submitted by whidzee [link] [35 comments]

Is a nebula visible from within? Posted: 07 Dec 2015 05:30 PM PST Or is it more like a rainbow where it is only visible from a distance? submitted by stalkythefish [link] [13 comments]

Does the Universe have a center of gravity? Posted: 08 Dec 2015 08:01 AM PST submitted by tarandfeathers [link] [12 comments]

If a candle was lit in 0 Gravity, which way would the tip of the flame point? Posted: 08 Dec 2015 05:49 AM PST If a candle was lit in 0 Gravity, which way would the tip of the flame point? Thanks, Wallcop submitted by wallcop100 [link] [2 comments]

Would having a more efficient/ faster brain affect our perception of time? Posted: 08 Dec 2015 08:56 AM PST submitted by Cant_Think_Of_UserID [link] [2 comments]

Why does EMP fry electronics, and does turning them off actually protects them (like they do in movies)? Posted: 08 Dec 2015 07:39 AM PST submitted by Idroxyd [link] [1 comment]

Cities are usually warmer than their surrounding areas. Why doesn't their heat cause convection and carry smog away? Posted: 07 Dec 2015 08:13 AM PST submitted by redrainyskies [link] [9 comments]

Is time different at different points on the surface of PSR J1748-2446ad? Posted: 08 Dec 2015 08:30 AM PST Was watching a video about neutron stars recently and the star PSR J1748-2446ad came up with it's rather crazy spin rate (24% the speed of light). Which got me to thinking since speed is determined by distance traveled and time would that not mean that if you could stand on the surface of this pulsar you'd experience time differently if you stood at the equator vs nearer the poles since you'd be traveling at different speeds? If that's the case then does that not mean that the star is ageing at different rates across it's own surface? This may be a nonsensical question but I can't exactly see why. submitted by thecyberbob [link] [1 comment]

What is better for the environment, a bidet or toilet paper? Posted: 07 Dec 2015 07:29 PM PST Not necessarily just in terms of carbon footprint, but also water usage. Or other effects I haven't thought of. submitted by therndoby [link] [8 comments]

What Did Adult Humans Act Like Before Society? Posted: 08 Dec 2015 06:54 AM PST Kids are a view of what humans are like before society constructs them to behave a certain way i.e. tantrums, no regard for various social rules, no concept of money and so on. But what would a developed adult human act like without those constructed ideas integrated into their psyche? submitted by Donchedl [link] [2 comments]

How big is the "shine" of a star when compared to the actual size of the star? Posted: 07 Dec 2015 09:23 PM PST When you look up at the stars, you see them shine a fair amount, but they're not that big. When you look at the sun, it's that big, when compared to its shine. But when you look at a star, is it really as big as the shine it creates? How much smaller is it? Kinda hard to explain what I mean. submitted by Majicnanas [link] [4 comments]

Did scientists notice empirical deviations from classical mechanics or classical electrodynamics before Einstein offered a theory to extend them? Posted: 07 Dec 2015 08:51 AM PST In other words, did scientists already think something was wrong with their theories? Or did they assume measurements were reasonably predicted by those theories? submitted by nicmos [link] [29 comments]

Why is it that passing a magnet through coils produce an electric current? Posted: 08 Dec 2015 07:06 AM PST I somewhat understand Faraday's law that states a magnet through a coil will produce electricity, but I want to know why? And is magnetic flux simply the passing of the magnet through the coils? How is the electricity made out of nowhere? Just to be clear, I know WHAT happens. I want to know WHY it happens? submitted by jpad1208 [link] [1 comment]

If you shake a container of liquid, does a partially filled or full container experience more structural stress? Posted: 08 Dec 2015 07:02 AM PST Thinking about it, it seems like having empty space would allow the liquid to pick up momentum which it disperses when it contacts the other end, while being completely full on the other hand would prevent that kind of movement (would you still have a pressure wave moving through the liquid medium?) It feels kind of counterintuitive though, and I can't help but feel I'm overlooking something. I suppose there are degrees of difference too, which would be interesting to see graphed. A 10% full container would not have to deal with much mass, while a 90%, almost full container would be the worst case(?) - almost the greatest possible mass while still having to deal with empty space. I know there are all kinds of ways you can qualify the question too: What shape of container is it? To what extent is the unfilled portion occupied by gas? I don't want to complicate the question too much. submitted by Mizzet [link] [1 comment]

What's the difference between a Lornez system and chaotic system? Posted: 08 Dec 2015 04:00 AM PST What's the difference between a Lornez system and chaotic system? Are they the same? I think there's some kind of formal mathematical definition or structure for the chaotic system. Is this true? submitted by bigkds [link] [8 comments]

If the expansion of the universe can be slowed by gravity, as in the big crunch theory, does that mean space is not expanding near massive objects? Posted: 07 Dec 2015 08:02 PM PST I've always understood that expansion occurs everywhere equally, including between the atoms of my body, but was unnoticeable compared to the local forces. submitted by lifeingote [link] [7 comments]

If the entire universe was made of anti-matter instead of matter, would any of the established physics and chemistry laws be any different? Posted: 07 Dec 2015 06:26 PM PST how about the "anti"-gravity? would it push instead of pull? submitted by kcolknas [link] [23 comments]

Why did the oxygen level rise and fall as it did in the timeline 200 to 400 million years ago? Posted: 08 Dec 2015 02:46 AM PST My source of curiosity submitted by Jeefbeef_Toby [link] [1 comment]

How exactly are bosons derived from "connection fields", and how are connection fields derived from symmetries? Posted: 07 Dec 2015 05:57 PM PST How exactly do symmetries in particle physics, and the breaking of those symmetries, lead to connection fields? Are these fields basically just implementations of the 'rules' that must be followed as a result of a broken symmetry? What exactly IS a broken symmetry, and how is the Higgs field responsible for breaking symmetry in matter? submitted by marmiteandeggs [link] [4 comments]

How can an electron be in more than one place at once? Posted: 07 Dec 2015 08:14 PM PST I was recently watching a debate with Lawrence Krauss and while responding to his opponent he mentioned that an electron can be in more than one place at a time, seemingly defying the laws of physics. I am a freshman in high school, so if at all possible, could I have an explanation of how that works? I probably wont understand it, but if so I appreciate any explanations I can get. Thanks! EDIT: Here is the link and timestamp to when Krauss mentions the electrons-thing. https://www.youtube.com/watch?v=79iPMEG_4i0&feature=iv&src_vid=22cYcsVPOok&annotation_id=annotation_2897502333 Timestamp: 39:55 WARNING: EXTREMELY PROVOCATIVE TITLE, SORRY BUT IT'S NOT MY VIDEO. submitted by CSkinzz [link] [10 comments]

What is the potential output of Wendelstein X-7? Posted: 08 Dec 2015 07:40 AM PST I understand from several places that the focus with this particular reactor is not to achieve efficiency. Are they not planning to get output from the reactor at all, or allow it all to dissipate as heat? I can't seem to find info on that. submitted by almosthere0327 [link] [2 comments]

Why does Bradford Reagent contain acid? Posted: 08 Dec 2015 07:20 AM PST Working on a lab and I was curious why Bradford Reagent needed to be in an acid. The buffer we use should keep the solution at a regular ph so the protein should keep their shape that way. submitted by Flowercowable [link] [1 comment]

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If an Electromagnetic Pulse (EMP) Device disrupts electrical interactions, why is the human body/nervous system unaffected? Or, if it is affected, in what way?

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• If an Electromagnetic Pulse (EMP) Device disrupts electrical interactions, why is the human body/nervous system unaffected? Or, if it is affected, in what way?
• What is the evolutionary background behind Temperature Dependent Sex Determination?
• We have Einstein's brain preserved in formaldehyde. Are all the synapses still wired up the same as when he was alive? Could some future civilization recreate a form of Einstein from this?
• A recurring TIL topic says that the déjà vu phenomenon occurs due to the brain storing memories into long term memory instead of short term memory. Is this true, and if so is there an understanding of why such "miswrites" occur?
• Is it possible to view the past?
• How is this floating astronaut able to turn in place with no reaction forces?
• How does Zorns lemma work?
• Why does the ball in this gif go in the direction it does?
• Can photons colide? And if so, what is the outcome?
• Is extremism considered as mental disorder ?
• Can you proof that theres a series, which only produces primes?
• Why do some people need more sleep than others?
• Is a magnetic field just an electric field from a different frame?
• Do people who are closely related have similar fingerprints?
• How is Planck time, length, temperature, etc. determined?
• How do distributions of intelligence compare to distributions of income?
• Why are there three color charges instead of two?
• If a person eats junk food with a stuffy nose, will their brain receive the same chemical reward as it would when they can taste normally?
• Does over-consumption of fiber reduce hormone production due to cholesterol removal?
• In birds, the homogametic sex is male, while in mammals, it's female. What changed with evolution, the sex associated with the chromossomes, or the chromossomes associated with sex? Can we say male birds are the "same kind of male" as male humans?
• Does neuroscience discount the whole discipline of psychology?
• Just how unsolvable is the Halting Problem? Where are the limits?
• Why are hybrid species different depending on which species the mother or father were (e.g. Liger and Tigon)? Also, why are some hybrid species able to reproduce, while other are not?

If an Electromagnetic Pulse (EMP) Device disrupts electrical interactions, why is the human body/nervous system unaffected? Or, if it is affected, in what way? Posted: 06 Dec 2015 08:59 PM PST submitted by UsernameRelevant2060 [link] [171 comments]

What is the evolutionary background behind Temperature Dependent Sex Determination? Posted: 06 Dec 2015 07:44 AM PST I understand that this phenomenon allows for groups of a single sex to be produced depending on the ambient temperature. But I'm still confused as to how this trait evolved in the first place and why it is restricted to mostly reptiles. Also, why is the TSD pattern in turtles the opposite from crocodiles and lizards? submitted by jxz107 [link] [111 comments]

We have Einstein's brain preserved in formaldehyde. Are all the synapses still wired up the same as when he was alive? Could some future civilization recreate a form of Einstein from this? Posted: 07 Dec 2015 06:56 AM PST submitted by Westbrook_Level [link] [10 comments]

A recurring TIL topic says that the déjà vu phenomenon occurs due to the brain storing memories into long term memory instead of short term memory. Is this true, and if so is there an understanding of why such "miswrites" occur? Posted: 06 Dec 2015 06:11 PM PST submitted by popisfizzy [link] [6 comments]

Is it possible to view the past? Posted: 07 Dec 2015 05:01 AM PST For instance, an event on earth that took place in the 1950's? I'm aware it's technically possible to view the past everyday when we look at stars. However, I'm referring more to time travel without interacting, only observing. In this case, the people from the past would not be able to see or hear the observer and we could not change the course of events. So basically, would it be theoretically possible but not plausible? On the other hand, if it were possible, how would we likely achieve doing this? submitted by Lyssa2828 [link] [17 comments]

How is this floating astronaut able to turn in place with no reaction forces? Posted: 07 Dec 2015 02:36 AM PST I've just seen this gif on /r/space (thread) that illustrates how helpless an astronaut is when away from walls and with little velocity. That makes perfect sense, conservation of linear momentum and all that. However, I can't explain how he's still able to turn in place at will. And quite easily too! Shouldn't conservation of angular momentum prevent it? Rotating any body part should turn the rest of the body in the other direction, leaving the 'average' orientation the same, no? submitted by Pipinpadiloxacopolis [link] [10 comments]

How does Zorns lemma work? Posted: 07 Dec 2015 07:07 AM PST I'm wondering, is an open interval on R considered a partially ordered set (and also totally ordered), and in this case I'd argue that the set has no maximal point, as the minimal upper bound is not included in the set. What am i misinterpreting? submitted by NegroFromSpace [link] [2 comments]

Why does the ball in this gif go in the direction it does? Posted: 06 Dec 2015 08:19 AM PST Here: http://i.imgur.com/KuayNFt.gifv I know the bernoulli's theorem, that where the speed is high the pressure is low and vice versa. So here when the guy spins the ball inwardly, the speed of air on the near side is higher and so the pressure should be lesser. This means that the ball must move backward,i.e. opposite to the direction it moved in. submitted by Lidicap [link] [32 comments]

Can photons colide? And if so, what is the outcome? Posted: 06 Dec 2015 04:23 PM PST Photons have the properties of waves and of particles. So I imagine some sort of interaction takes place when two or more meet. I am curious as to what actualy happens. submitted by Vio1331 [link] [13 comments]

Is extremism considered as mental disorder ? Posted: 06 Dec 2015 08:15 PM PST In any kinds or any forms. Can it be a symptom of something ? If so, is there a treatment ? I looked in DSM, but didn't found anything reliable. Thanks ! submitted by Rebel_de_la_Foret [link] [3 comments]

Can you proof that theres a series, which only produces primes? Posted: 07 Dec 2015 06:39 AM PST I mean you can proof that there are infinite primes, but can you consistenly list primes in a series? submitted by zebleck [link] [1 comment]

Why do some people need more sleep than others? Posted: 06 Dec 2015 10:22 AM PST IE: My nurse friend can go and work a 12 hour shift and then go out for drinks afterwards on a regular basis without any problem. On the other hand, if I get anything less than 6 hours of sleep the night before, I struggle miserably to function properly throughout my regular 8 hour shift. What gives? submitted by ChipperJones87 [link] [3 comments]

Is a magnetic field just an electric field from a different frame? Posted: 06 Dec 2015 01:19 PM PST If so, how do permanent magnets work? submitted by portmantoux [link] [9 comments]

Do people who are closely related have similar fingerprints? Posted: 06 Dec 2015 04:06 PM PST submitted by RnRaintnoisepolution [link] [1 comment]

How is Planck time, length, temperature, etc. determined? Posted: 06 Dec 2015 11:37 AM PST Because as far as I know the measurements are way way beyond what people can do or measure. How do people know the specific measurement when it is way too small to be measured? submitted by henrythechump [link] [7 comments]

How do distributions of intelligence compare to distributions of income? Posted: 06 Dec 2015 08:50 AM PST I was thinking that intelligence is a bell curve while income is a long tail, as they are generally presented, but the axis are different. The bell curve has the measured characteristic (IQ) on the x vs. quantity of subjects on the y. The long tail has the measured characteristic (income) on the y vs ordinal ranking (effectively) of individual subjects on the x. How do they compare when presented similarly? Edit: fixed mistakes and clarity. Edit: added pic links submitted by subsidiarity [link] [9 comments]

Why are there three color charges instead of two? Posted: 06 Dec 2015 09:45 PM PST I know that there are three color charges (r,g,b) but I'm told that quarks can only exist in groups where the charges add up to white. If there were only two dimensions of color charge, with rgb being points on a hexagon and their anti-counterparts cmy being the opposite points, then a sum of all three or a combination of two opposites would always equal to zero Is there a difference in the strong force between red-green-blue and red-antired combinations? submitted by chunkylubber54 [link] [10 comments]

If a person eats junk food with a stuffy nose, will their brain receive the same chemical reward as it would when they can taste normally? Posted: 06 Dec 2015 04:21 PM PST I was eating chips with a cold and was wondering this. submitted by Dante_Valentine [link] [1 comment]

Does over-consumption of fiber reduce hormone production due to cholesterol removal? Posted: 06 Dec 2015 05:30 PM PST Hello AskScience, I am in a Community Health Perspectives class, and we are learning about Atherosclerosis. My professor says that built up cholesterol in the arteries can be removed (not entirely but still) by consumption of fiber, which sticks to the particles and carries them out. He also says that cholesterol is a good thing, and that it produces lots of hormones your body needs, including all of your sex hormones. My question is, if you consumed enough fiber, could you remove enough cholesterol that you noticeably stop producing enough hormones? Like, if I had Grape Nuts and a loaf of whole wheat bread every morning could my libido theoretically drop? Thank you. submitted by toasterwaffle427 [link] [comment]

In birds, the homogametic sex is male, while in mammals, it's female. What changed with evolution, the sex associated with the chromossomes, or the chromossomes associated with sex? Can we say male birds are the "same kind of male" as male humans? Posted: 06 Dec 2015 03:46 PM PST Birds have ZW sex determination: ZZ is male and ZW is female. Are those genes associated with the XY genes in any way? How did evolution create this? submitted by Hayarotle [link] [4 comments]

Does neuroscience discount the whole discipline of psychology? Posted: 06 Dec 2015 10:31 AM PST submitted by MrEngleman [link] [15 comments]

Just how unsolvable is the Halting Problem? Where are the limits? Posted: 06 Dec 2015 09:56 AM PST Let me elaborate - I am aware that HP is undecidable, that is, there is no universal algorithm to decide, for any given Turing machine M and any given input w, whether M will eventually halt after being given input w. However, there clearly are some machines and some inputs you can decide HP for. What I'm interested in - where do these limits lie? More specifically: What machines and inputs is HP decidable for? What sets of machines/inputs do we know of, that HP is definitely decidable/undecidable for? Are there any methods that provide a "partial" solution to HP in the sense that they will always halt, while producing an answer "yes"/"no"/"don't know"? How effective are they in the sense of how many inputs they can decide as "yes"/"no" vs. how many they will output "don't know" for? What inputs can/can't they decide? Are there any widely-used terms for the things I'm describing / sources where I can learn more? I'm asking mostly in a theoretical sense, but I will also welcome more practically oriented answers. submitted by alanisacowboykiller [link] [11 comments]

Why are hybrid species different depending on which species the mother or father were (e.g. Liger and Tigon)? Also, why are some hybrid species able to reproduce, while other are not? Posted: 06 Dec 2015 07:03 PM PST submitted by Sarke1 [link] [1 comment]

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