How many GPS devices can handle a group of GPS Satellites at once? I mean there are billions of smartphones and other GPS devices. How can all of those be processed at almost the same time by a handful of satellites?

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• How many GPS devices can handle a group of GPS Satellites at once? I mean there are billions of smartphones and other GPS devices. How can all of those be processed at almost the same time by a handful of satellites?
• Besides Humans, are there any other organisms that cook or use/make recipes?
• Is the mass of virtual particles accounted for in the mass of the galaxies?
• Regarding the higgs boson, and its potential implications?
• Is it possible to shake a certain distance of air (maybe with a sound wave or other method) so that it could disrupt the stability of a flying drone?
• Can people with lazy eye choose which eye to use and alternate between them?
• Who has the advantage in a quiz where two people have to guess a number (e.g. an amount or a prize). The first guesser or the second?
• Does being blind really release 'brain resources' to be used for other senses and make them more sensitive to e.g. hearing?
• If there are no nerve endings in the brain, then what's responsible for the pain we feel during a headache?
• Does competition drive down diversity in an ecosystem? If so, why?
• Are colorblind people able to watch 3D movies with the red-green glasses?
• When you stick your hand outside of a moving vehicle, are you slowing it down? If so, by how much?
• What are negative G's?
• What makes something harder to learn than something else?
• Is the observer effect true?
• Is there a proof for "Adding the odd numbers in sequence will give you the square numbers in sequence"?
• Why is the Prandtl number for the Earth's mantle so high?
• How do even and odd numbers work in something other than Base 10?
• If you traveled underwater faster than the speed of sound (in water), would you get a sonic boom?
• How does the Y chromosome attain genetic diversity?
• Is there a 4-D analogue of the Poincaré conjecture? If so (and it is proven), would this definitively tell us the shape of the universe?

How many GPS devices can handle a group of GPS Satellites at once? I mean there are billions of smartphones and other GPS devices. How can all of those be processed at almost the same time by a handful of satellites? Posted: 18 Mar 2016 12:53 AM PDT submitted by /u/CE_BEP [link] [comments]

Besides Humans, are there any other organisms that cook or use/make recipes? Posted: 17 Mar 2016 02:51 PM PDT submitted by /u/DemLegzDoe [link] [comments]

Is the mass of virtual particles accounted for in the mass of the galaxies? Posted: 18 Mar 2016 12:56 AM PDT As I understand it, virtual particles pop in and out of existence by some probabilistic model. On a small scale, I'd imagine this amounts to nothing,, but on a galactic level, shouldn't there be some quantifiable minimum total mass that they would contribute at all times? And if so, has this been considered as a candidate for dark matter? submitted by /u/BimmerJustin [link] [comments]

Regarding the higgs boson, and its potential implications? Posted: 17 Mar 2016 09:13 PM PDT So I do fully admit that I'm basically an armchair physicist and not (fully) educated formally in the matter of quantum mechanics. In this admission, I fully welcome any comments completely debunking this idea. I wanted to know if this idea holds water at all, and appreciate any criticism (constructive, of course). A while ago, I had the idea that, because the higgs boson effectively "gives" particles mass (think of give as a loose term for a second), could a different manifestation of the Higgs possibly be responsible for the accelerated inflation our universe has seen? My reasoning is that mass distorts spacetime in a contorted way, so could a theoretical "antihiggs" (working title, by the way, it wouldn't be anti in the sense of the word because it would not annihilate/interact with the Higgs we all know and love). This 'antihiggs' would instead expand spacetime, and, in a way, could at least contribute to the elusive and mysterious dark energy. I'm asking if this holds merit or can be entirely debunked. I'm honestly hoping for the latter, so I don't develop any delusions of grandeur of having "solved" the problem of dark energy. Any and all input is welcome. Thanks. Oh yeah, I do have some (admittedly basic) mathematics behind this, that expand upon this more than I'd care to type in the initial post. If anyone is interested, let me know. edit: Oh, and if this is posted in the wrong sub, let me know so I can take it down and post elsewhere. submitted by /u/superultimatejesus [link] [comments]

Is it possible to shake a certain distance of air (maybe with a sound wave or other method) so that it could disrupt the stability of a flying drone? Posted: 17 Mar 2016 03:21 PM PDT submitted by /u/TheRandomArtist [link] [comments]

Can people with lazy eye choose which eye to use and alternate between them? Posted: 17 Mar 2016 03:12 PM PDT Hey there! I'd like to preface this by saying that I am not asking for medical advice of any kind, just checking if anyone has any insight on the subject, as google turns up nothing. Also, I apologize for the crude (and/or rude) terminology, but there are multiple issues with the same effect. I know that lazy eye usually happens when the muscles controlling the movement of the eye are somehow affected, or the brain is not processing the visual signal properly, which results in the eye veering off to one side and the loss of stereoscopic vision. My questions - do people with such issues have the ability to choose which eye to use at any given moment? Like having the ability to use only your left eye or your right eye? Thank you for your time! submitted by /u/SandyCookie [link] [comments]

Who has the advantage in a quiz where two people have to guess a number (e.g. an amount or a prize). The first guesser or the second? Posted: 18 Mar 2016 03:11 AM PDT I am a radio host and sometimes conduct radio quizzes. As a tiebreaker between two contestants, I use a "guess how many"-question, like "How much money did the local government spend on traffic in 2015?" The first contestant gives an answer. The second one then answers. What is most fair? A: That the first one guess a number, and the second guess a number? B: The first one guess a number, and the second says higher og lower? My thinking is: In scenario B, number 2 has a 50/50 chance, but I am not sure if number 1 has the same 50/50 chance, because the success of his opponent is down to 50/50? Another question: Is the fairness affected by the nature of the question, i.e. the difference between a random number and an actual number that might be, but unlikely is known by one of the contestants? submitted by /u/ninjamunk [link] [comments]

Does being blind really release 'brain resources' to be used for other senses and make them more sensitive to e.g. hearing? Posted: 17 Mar 2016 12:41 PM PDT submitted by /u/onewugtwowugs [link] [comments]

If there are no nerve endings in the brain, then what's responsible for the pain we feel during a headache? Posted: 17 Mar 2016 12:25 PM PDT submitted by /u/Smartless [link] [comments]

Does competition drive down diversity in an ecosystem? If so, why? Posted: 17 Mar 2016 12:17 PM PDT I read an article recently about two types of fish in a lake. One lived in the shallow portion of the lake, one in the deep. After crawfish were introduced to the ecosystem, the two fish interbred and competed, to their detriment. The abstract for the article stated, in a way that implied that it was a known fact, that competition drives down diversity in an ecosystem. This seems counterintuitive to me. Is this the case? If so, why? e: typo submitted by /u/anacrassis [link] [comments]

Are colorblind people able to watch 3D movies with the red-green glasses? Posted: 17 Mar 2016 11:33 AM PDT submitted by /u/MyLaneBeLike [link] [comments]

When you stick your hand outside of a moving vehicle, are you slowing it down? If so, by how much? Posted: 17 Mar 2016 01:51 PM PDT "How much" is very vague and dependent on basically every variable... submitted by /u/August_28th [link] [comments]

What are negative G's? Posted: 17 Mar 2016 09:55 PM PDT I understand that a single G represents one earth gravitys effect on our body, correct? 5 G would be like x5 earth gravity, right? So how can we go multiples of negative G? Is 0 G weightless, like in space? submitted by /u/l2Loud [link] [comments]

What makes something harder to learn than something else? Posted: 17 Mar 2016 11:41 AM PDT Like Calculous vs Addition submitted by /u/PotatoPotahto [link] [comments]

Is the observer effect true? Posted: 17 Mar 2016 03:49 PM PDT I am referring to the idea that "thoughts affect reality" as claimed in this video. After some research I know this comes from a common misconception of the quantum wave function. I am just a little confused on what this misconception is. submitted by /u/besantos10 [link] [comments]

Is there a proof for "Adding the odd numbers in sequence will give you the square numbers in sequence"? Posted: 17 Mar 2016 11:58 AM PDT While I was writing all the square numbers down I tried to find a pattern, so I wanted to see the difference between each square, I noticed that there were all odd numbers in order apart, i.e 1,4,9 and 16 are respectively 3,5 and 7 apart. Thank you for answering! submitted by /u/bonkerplonker [link] [comments]

Why is the Prandtl number for the Earth's mantle so high? Posted: 17 Mar 2016 10:30 AM PDT On Wikipedia's entry for the Prandtl number, it states that the earth's mantle's Pr is around 1025. Does plate tectonic activity contribute to a high kinetic viscosity (∴ high viscous diffusivity) relative to a very low thermal diffusivity, or is the latter just extremely low relative to a low viscous diffusivity? submitted by /u/kingrobotiv [link] [comments]

How do even and odd numbers work in something other than Base 10? Posted: 17 Mar 2016 09:19 AM PDT submitted by /u/Kiro21 [link] [comments]

If you traveled underwater faster than the speed of sound (in water), would you get a sonic boom? Posted: 17 Mar 2016 04:41 AM PDT And if so, how would it manifest? Would there be a bubble of air or something like that? I assume it would be quite a bit different from how sonic booms work in air. submitted by /u/PenalAnticipation [link] [comments]

How does the Y chromosome attain genetic diversity? Posted: 17 Mar 2016 09:14 AM PDT If it's the same Y chromosome passed down the male side, how does a person achieve genetic diversity like they do with X chromosomes? submitted by /u/Switcha92 [link] [comments]

Is there a 4-D analogue of the Poincaré conjecture? If so (and it is proven), would this definitively tell us the shape of the universe? Posted: 17 Mar 2016 07:24 AM PDT submitted by /u/R2Dude2 [link] [comments]

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AskScience AMA Series: I’m Dheeraj Roy, a neuroscientist studying what happens to lost memories in early stages of Alzheimer’s disease. Are these memories erased or do they exist but cannot be found? AMA!

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• AskScience AMA Series: I’m Dheeraj Roy, a neuroscientist studying what happens to lost memories in early stages of Alzheimer’s disease. Are these memories erased or do they exist but cannot be found? AMA!
• Can metal shatter if cold enough?
• If I try to listen to a podcast while reading a book am I strengthening any skills or just making it harder to accomplish both tasks?
• What is plasma and how is it able to be used for so many different things?
• Is the deep ocean floor littered with the bones of fish and mammals which have died over the years?
• What happens when two event horizons intersect?
• What is it about nitrates that make them such good explosives?
• Does potential energy distort spacetime? Where is it 'located'?
• Does carbon dioxide gas scatter light in the visible spectrum?
• does a black hole at the center of a galaxy help stabilize it gravitationally?
• What is our current best guess of the topology of the universe?
• If the EM field is a tensor field, then why are photons vector bosons?
• What did the Wow! Signal actually contain?
• When we see a bright light in our dreams, do our pupils contract?

AskScience AMA Series: I’m Dheeraj Roy, a neuroscientist studying what happens to lost memories in early stages of Alzheimer’s disease. Are these memories erased or do they exist but cannot be found? AMA! Posted: 17 Mar 2016 04:25 AM PDT Hi Reddit! My research is about what happens to our memories when we cannot remember. When we experience memory loss, does it mean that these memories have been erased? Could it be that some memories exist in our brains but we are unable to find and recall them? These questions led me to study memory loss in Alzheimer's disease (AD). In addition to the impact AD has on our community, watching my own grandmother gradually forget drives me to the laboratory everyday with the hope that someday we will be able to help AD patients remember. To study memory brain structures affected by AD, I use animal models that closely mimic the human condition. From patients, we know that initial stages of AD (known as "early AD") are diagnosed when consecutive memory tests result in extremely poor performance. In particular, early AD patients seem to lose memories of events/episodes such as birthday parties, summer vacations with the family, high school reunions, etc. It has been assumed that early AD patients lose critical memory information and therefore cannot remember. My recent work (link to nature study: http://dx.doi.org/10.1038/nature17172) using animal models challenges this widely held assumption. Not only did we find that early AD mice still stored the supposedly lost memories, but we found a way to bring these memories back. Given this work, I believe that memory loss in early stages of AD is because patients are unable find and retrieve the information, rather than a permanent loss of memory information. Even though this particular work was done using animal models, I have hope that in the future we can learn more about retrieving lost memories in early AD patients. For a perspective on my recent work by expert memory researchers, go here (link to nature news and views: I will share a link on Wed, 3/16 at 2 PM EST). If you are interested in some of my previous research that led to the study of memory loss in early AD, go here (link to science study: http://classic.sciencemag.org/content/348/6238/1007.abstract). I would love to continue discussing the future of memory research on Twitter, follow me @dheerajroy7 (link to twitter account: https://twitter.com/dheerajroy7). If you don't have access to any of my research articles, email me (d_roy@mit.edu) and I will try to help ☺! I am very excited to talk about memory loss and Alzheimer's disease with the Reddit community because I learn so much through your insightful questions and comments. I will be back at 1 PM EST to answer all questions. In advance, I want to thank the entire community for allowing me to share my work! submitted by /u/Dheeraj_Roy [link] [comments]

Can metal shatter if cold enough? Posted: 16 Mar 2016 08:28 PM PDT Like in the movies, someone freezes a lock and breaks it, or Mr. Freeze freezing steel doors and driving through them? What real life effect does extreme cols have on metal? submitted by /u/Trtlman [link] [comments]

If I try to listen to a podcast while reading a book am I strengthening any skills or just making it harder to accomplish both tasks? Posted: 16 Mar 2016 04:46 PM PDT So I'm doing homework which requires me to read a few short stories and I want to listen to a podcast because it's entertaining. It's hard but possible to pay attention to both of them at the same time, and although it's frustrating it made me wonder if I can strengthen multi-tasking skills or listening skills or something by doing it. submitted by /u/wyleFTW [link] [comments]

What is plasma and how is it able to be used for so many different things? Posted: 17 Mar 2016 05:58 AM PDT I just saw a bunch of videos on plasma, such as a plasma lighter and a plasma speaker, and I'm really curious on what plasma actually is and how it is able to be used so diversely. submitted by /u/CrackInTheGlass [link] [comments]

Is the deep ocean floor littered with the bones of fish and mammals which have died over the years? Posted: 16 Mar 2016 10:28 AM PDT Do bones dissolve in the ocean, or do they sink to the bottom and stay there until something covers them up? submitted by /u/st8ic [link] [comments]

What happens when two event horizons intersect? Posted: 16 Mar 2016 08:23 PM PDT I'm thinking about what would happen when two black holes collide. Supposedly, once matter crosses the event horizon it can never go fast enough to escape the gravity of the singularity at the center. So what happens to matter that is caught inside the boundaries of two interesting event horizons? Does it stand still? Does it gravitate towards the more massive singularity, even if that means escaping the other black hole's event horizon? That should not be possible, right? submitted by /u/libbykino [link] [comments]

What is it about nitrates that make them such good explosives? Posted: 16 Mar 2016 06:15 PM PDT Other -ates: carbonates, sulfates, phosphates, etc. don't seem to be used very much with explosives. What's special about nitrates that cause such a violent reaction? submitted by /u/gimmevaults [link] [comments]

Does potential energy distort spacetime? Where is it 'located'? Posted: 16 Mar 2016 05:51 PM PDT submitted by /u/pixlepix [link] [comments]

Does carbon dioxide gas scatter light in the visible spectrum? Posted: 16 Mar 2016 11:10 PM PDT In a broader sense, is there a way to predict/calculate what color a gas will scatter and absorb based on its molecular makeup, or is that something that needs to be determined experimentally? submitted by /u/VladimirZharkov [link] [comments]

does a black hole at the center of a galaxy help stabilize it gravitationally? Posted: 16 Mar 2016 01:58 PM PDT I was just reading about the mergers of super massive black holes and i'm wondering what the role of the black hole at the center of a galaxy plays. Does it play a role in gravitational stability of the galaxy as a whole? submitted by /u/Can_ugh_duh [link] [comments]

What is our current best guess of the topology of the universe? Posted: 16 Mar 2016 11:44 PM PDT submitted by /u/pip_install_empathy [link] [comments]

If the EM field is a tensor field, then why are photons vector bosons? Posted: 16 Mar 2016 02:48 PM PDT Furthermore, why is this not the case for gravitons? submitted by /u/chunkylubber54 [link] [comments]

What did the Wow! Signal actually contain? Posted: 15 Mar 2016 01:45 AM PDT I'm having trouble understanding this, and what I've read hasn't been very enlightening. If we actually intercepted some sort of signal, what was that signal? Was it a message? How can we call something a signal without having idea of what the signal was? Secondly, what are the actual opinions of the Wow! Signal? Popular culture aside, is the signal actually considered to be nonhuman, or is it regarded by the scientific community to most likely be man made? Thanks! submitted by /u/CBNormandy [link] [comments]

When we see a bright light in our dreams, do our pupils contract? Posted: 16 Mar 2016 03:52 AM PDT Does the size of the pupil change when we are sleeping according to the amount of light in our dream? submitted by /u/ojousama1108 [link] [comments]

You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States

There is a video of a man folding a piece of paper with a hydraulic press 7 times. The 7th time seems to essentially break the piece of paper, what happened here?

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• There is a video of a man folding a piece of paper with a hydraulic press 7 times. The 7th time seems to essentially break the piece of paper, what happened here?
• Does light lose energy when reflected?
• AskScience AMA Series: I’m Ed Boyden professor of biological engineering and brain and cognitive sciences at the MIT Media Lab and the MIT McGovern Institute, ask me anything!
• Evolution of receptors and agonists. Chicken or egg?
• Is it possible/does it exist, a compund that is transparent when it is over 0°C, but a vibrant color when under 0°C?
• If you get a face transplant, does it age?
• Why is pentadecanol so much more expensive than hexadecanol?
• What happens on a molecular level when eggs coagulate and is it reversible?
• Why is tension independent of an object's length whereas compression is not?
• Why doesn't rolling a die twice increase your chances?
• Where in Einstein's field equations (or other equations if needed) does gravity propagate at the speed of light?
• How much of the specialized structures of our brain is genetic, and how much is developed from what's wired to particular parts of the brain?
• What limits the height at which something can fly?
• Do animals get joint injuries like humans do from excessive running/exercise? Why are we so prone to it?
• What effects the chance of co-morbidity in mental disorders?
• Why do some people have photographic memory, yet a normal person without one can still remember a huge quantity of information, such as the meaning of hundreds and thousands of words? What's the scientific difference between those two types of memory?
• Ask Anything Wednesday - Engineering, Mathematics, Computer Science
• How do muscles become hard when they are flexed?
• Is it possible to create sound waves without the vibration of a physical object like a speaker?
• Can a non-sex-chromosome condition present only in one sex of a family?
• The lowest recorded temperature is 10pK. To get to this temperature, one would need something colder than 10 pK, and so on. By this logic, the required temperature approaches absolute zero. How is this possible?
• How do delta receptors modulate mu receptors as they relate to analgesia?
• Is it possible to react to a gunshot?
• What does product moment of area mean?
• So, it's said that basically everything may be contained in Pi. Does that not apply to all irrational numbers?

There is a video of a man folding a piece of paper with a hydraulic press 7 times. The 7th time seems to essentially break the piece of paper, what happened here? Posted: 15 Mar 2016 04:53 PM PDT Here is the video I'm referring to. https://www.youtube.com/watch?v=KuG_CeEZV6w&feature=youtu.be submitted by /u/jfk_47 [link] [comments]

Does light lose energy when reflected? Posted: 16 Mar 2016 06:26 AM PDT Objects that collide with another object lose energy. So, when a light beam reflects off a surface, does it lose energy? So, loss of energy would result in a decrease in speed. submitted by /u/Mightyseph [link] [comments]

AskScience AMA Series: I’m Ed Boyden professor of biological engineering and brain and cognitive sciences at the MIT Media Lab and the MIT McGovern Institute, ask me anything! Posted: 15 Mar 2016 12:27 PM PDT Thanks everyone! The last hour was great, and I hope I answered some of your questions. You can find more about our work here: http://syntheticneurobiology.org/ I lead the Synthetic Neurobiology group at the MIT Media Lab. We develop tools for analyzing and repairing complex biological systems like the brain, and apply them systematically to reveal ground truth principles of biological function as well as to repair these systems. I also co-direct the MIT Center for Neurobiological Engineering, which aims to develop new tools to accelerate neuroscience progress. I was awarded the 2016 Breakthrough Prize in life sciences for my work in the development and implementation of optogenetics, a technique in which scientists can control neurons by shining light on them. At MIT, I launched a series of classes that teach principles of neuroengineering, starting with basic principles of how to control and observe neural functions, and culminating with strategies for launching companies in the nascent neurotechnology space. I earned my PhD in neurosciences at Stanford as a Hertz Fellow and graduated from MIT with a BS in electrical engineering and computer science and physics as well as a masters of engineering in electrical engineering and computer science. submitted by /u/Ed_Boyden [link] [comments]

Evolution of receptors and agonists. Chicken or egg? Posted: 16 Mar 2016 02:25 AM PDT Did receptors evolve before the chemicals that stimulate them? Or did the presence of the chemical (e.g. a hormone) cause cells to evolve receptors to respond to levels of the chemical? I guess another way to put it would be did mutations in the genes for cellular products influence mutations in cell receptors to recognise the new products? Or vice versa. Or was it some kind of co-evolution? submitted by /u/thatguywiththatname [link] [comments]

Is it possible/does it exist, a compund that is transparent when it is over 0°C, but a vibrant color when under 0°C? Posted: 16 Mar 2016 06:59 AM PDT I was looking at the window at a snowy day and the lack of color got me thinking. I wanted a paint that is transparent in the summer and very colorfull in the winter. submitted by /u/drita247 [link] [comments]

If you get a face transplant, does it age? Posted: 15 Mar 2016 06:28 PM PDT I debated asking this on r/nostupidquestions, but I feel like there are more qualified people on here that can give me a good answer. I just watched this video. A 41 year old got a 26 year old donor's face after an accident. Which made me wonder, would it ever age? submitted by /u/livininacoconut [link] [comments]

Why is pentadecanol so much more expensive than hexadecanol? Posted: 16 Mar 2016 05:45 AM PDT On Sigma-Aldrich, pentadecanol costs around 300 times more per gram than hexadecanol, despite having similar purities. Why is this? submitted by /u/Haxld [link] [comments]

What happens on a molecular level when eggs coagulate and is it reversible? Posted: 16 Mar 2016 05:37 AM PDT submitted by /u/Dranox [link] [comments]

Why is tension independent of an object's length whereas compression is not? Posted: 15 Mar 2016 11:40 PM PDT Hi guys. In my physics class today we did some compression and tension tests on materials and found that the change in length of a straight piece of wood changed how much compressive force you could apply to it before it broke. The longer pieces of wood could take less compressive force before snapping. Conversely, we found that it didn't matter how long or short a piece of wood is when it came to applying tensile forces. Why is this? Why is the tension in an object independent of length, yet compression seems to be amplified by length? submitted by /u/Always_Question_Time [link] [comments]

Why doesn't rolling a die twice increase your chances? Posted: 15 Mar 2016 08:41 PM PDT Ok, this might be a bit long winded but here goes. I've been taught since starting probability in middle school that doing something twice won't increase your chances if the starting conditions are the same. I understand that your chances won't increase on each singular attempt but wouldn't they increase overall. My thinking is as follows: the chances of rolling a 6 on a standard die is 1 in 6. The chances of 2 sixes in a row is 1 in 36 because 1/6 × 1/6 = 1/36. Taking this logic I said that the chances of rolling a not 6 is 5 in 6. The chances of rolling 2 not sixes in a row is 25/36 because 5/6 × 5/6 = 25/36 this means the chances of rolling a six in one of those times is 11/36. Therefore your chances of rolling a six if the die is rolled twice has gone up from 1/6 (6/36) to 11/36. Is this not correct? Thanks in advance for the help. submitted by /u/Kingme121 [link] [comments]

Where in Einstein's field equations (or other equations if needed) does gravity propagate at the speed of light? Posted: 15 Mar 2016 08:49 PM PDT Obviously c is in the equation but it's in the denominator of a term, and it's to the fourth power. How does this translate into gravity propagating at the speed of light/causation? (Relatedly, is it significant that that term has 4 radial rotations about the circle in the numerator and c4 in the denominator?) Is gravity's speed just assumed? Is it part of the stress-energy tensor and I just need to study that more closely? Am I looking at the wrong equation entirely? submitted by /u/ktool [link] [comments]

How much of the specialized structures of our brain is genetic, and how much is developed from what's wired to particular parts of the brain? Posted: 16 Mar 2016 07:00 AM PDT We know that different parts of our brain have specialized functions, such as visual processing, auditory processing, speech, language, muscle coordination, etc. Two ways this development can happen are: 1) The details of the function are described within our genetics. 2) The specific parts of our brain start out as general pattern machines, and whatever input/output is wired to a part of the brain trains that part of the brain to perform the function we need over time. I would assume it has to be some combination of the two, particularly since many animals start out at birth able to walk or see to some extent. On the other hand, we have cases of humans who gained sight after being blind from birth, and their visual sense has severe limitations. So, what do we know about how the specialization of brain function develops? submitted by /u/nairebis [link] [comments]

What limits the height at which something can fly? Posted: 16 Mar 2016 07:11 AM PDT Birds, insects, planes, etc. all seem to have a glass ceiling as to how high they can go. Why? submitted by /u/remynwrigs240 [link] [comments]

Do animals get joint injuries like humans do from excessive running/exercise? Why are we so prone to it? Posted: 16 Mar 2016 04:09 AM PDT Injuries are fairly common in running - one of our most basic forms of movement. This seems like evolution messed up a bit. Why is this? Do animals get injured as often as we do? If a cheetah is chasing its prey and lands a foot wrong, is that the cheetah out for 6 weeks while it recovers? Furthermore, if a person has been a runner for their whole life, you can expect that the cartilage in their knees will be pretty much gone by age 50. Does this happen to other animals? submitted by /u/jaydubs27 [link] [comments]

What effects the chance of co-morbidity in mental disorders? Posted: 16 Mar 2016 06:13 AM PDT I study Psych, and was always wondering, from my experience with patients and even myself, when someone has co-morbidity of learning disorders, they also seem to have mood disorders at the same time. For example, I have Dyscalculia and Dyslexia. I also have/had MDD and anxiety (SAD and GAD). I was reading a study right now about how co-morbidity rate of learning disorders is around 40%. What causes this? I do know that learning disabilities can cause depression (being depressed because feeling like a failure, etc.). I am just wondering if there is any biological link. submitted by /u/TheTinyKitten [link] [comments]

Why do some people have photographic memory, yet a normal person without one can still remember a huge quantity of information, such as the meaning of hundreds and thousands of words? What's the scientific difference between those two types of memory? Posted: 15 Mar 2016 08:15 AM PDT submitted by /u/xSialicAcidx [link] [comments]

Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 16 Mar 2016 08:02 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Engineering, Mathematics, Computer Science 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 /u/AutoModerator [link] [comments]

How do muscles become hard when they are flexed? Posted: 15 Mar 2016 05:14 PM PDT submitted by /u/BT9154 [link] [comments]

Is it possible to create sound waves without the vibration of a physical object like a speaker? Posted: 15 Mar 2016 08:20 AM PDT submitted by /u/cantGoNoMore [link] [comments]

Can a non-sex-chromosome condition present only in one sex of a family? Posted: 15 Mar 2016 10:35 AM PDT After making contact with my genetic father recently, I've learned that his side of my family has a history of familial polyposis (FAP), but, according to him, "only in the women of the family." From what I've read, FAP is caused by mutations on chromosomes 1 or 5, so I can't figure out how only the women of the family would manifest this. I'm going to get the genetic test no matter what, but I'm curious - is it possible for this to be sex-dependent? submitted by /u/zelmerszoetrop [link] [comments]

The lowest recorded temperature is 10pK. To get to this temperature, one would need something colder than 10 pK, and so on. By this logic, the required temperature approaches absolute zero. How is this possible? Posted: 15 Mar 2016 08:59 AM PDT submitted by /u/KingOfKingOfKings [link] [comments]

How do delta receptors modulate mu receptors as they relate to analgesia? Posted: 15 Mar 2016 08:24 AM PDT Title. submitted by /u/Dw_Vonder [link] [comments]

Is it possible to react to a gunshot? Posted: 16 Mar 2016 12:45 AM PDT Let me just set the stage. In many movies or shows somebody will be holding a gun at someone that has a gun on a hostage, if they shoot the hostage will be shot. But is it really possible to react fast enough and pull the trigger before being hit by the bullet? I suppose there's a lot of variables here but I would think that there's no way somebody could react that fast. submitted by /u/Catman933 [link] [comments]

What does product moment of area mean? Posted: 16 Mar 2016 04:21 AM PDT https://en.wikipedia.org/wiki/Second_moment_of_area#Product_moment_of_area I get in Second moment of area matrix there is I_x, I_y which denote moment of area with respect to x and y axis and weight of that area component while bending through that axis. But what does the product moment of area mean? submitted by /u/semester5 [link] [comments]

So, it's said that basically everything may be contained in Pi. Does that not apply to all irrational numbers? Posted: 15 Mar 2016 02:01 PM PDT submitted by /u/moralanarchy [link] [comments]

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