What do you catabolize first during starvation: muscle, fat, or both in equal measure?

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• What do you catabolize first during starvation: muscle, fat, or both in equal measure?
• I noticed Nice, France looks very tropical. It is at 43 degrees N. I'm in Portland, ME...hardly tropical at 43 degrees N. How is this? Is it because of the Mediterranean?
• Do adult birds ever feed other adult birds?
• If alcohol damages our livers, why does our alcohol tolerance increase?
• Do the Alpha Centauri stars and the Sun originate from the same supernova?
• Disposal of radioactive material? Why haven't we devised a way to safe cost effective way of launch it into space instead of burying it on our own planet?
• Like animals, are there any food plants or fruit trees got extinct over the years or considered as endangered species which might go extinct soon?
• What is eleven-dimensional supergravity? More specifically, how does it pertain to m-theory?
• Black holes slow down time of nearby clocks relative to an outside observer. What is the theoretical effect that a white hole would have on time?
• Helium floats, so how did it end up inside the earth?
• Could an interstellar spacecraft travel long distances using a few spaced-out propulsive bursts instead of constant propulsion?
• What are the different methods of determining the age of fossils or rocks? How reliable and accurate are they?
• Is there a limit to the ultimate speed of expansion of the universe?
• Why does earth' atmosphere let energy/heat in but does not release it back to space?
• Why does Central Processing Units have much less cores than a Graphics Processing Unit?
• Is the Monty Hall problem the same even if the door opened by the host is chosen at random?
• Why do people have nightmares?
• If I'm standing 10ft from a mirror, is it the same as my eyes looking 20ft away or just the 10?
• What makes a battery or cell "heavy duty"? How does it differ from a "normal" cell?
• How does lithium work to stabilize moods?
• Can a volcanic eruption poison a large area of land?
• Why would water push larger and heavier rocks/boulders farther up shore than smaller and lighter rocks?
• Colligative properties are defined as only relying on the concentration, and not the identity of the molecule. Doesn't the use of the constant, K, for different molecules mean the identity actually does matter? Then why do we define it the way we do?

What do you catabolize first during starvation: muscle, fat, or both in equal measure? Posted: 14 Jul 2016 03:07 PM PDT I'm actually a Nutrition Science graduate, so I understand the process, but we never actually covered what the latest science says about which gets catabolized first. I was wondering this while watching Naked and Afraid, where the contestants frequently starve for 21 days. It's my hunch that the body breaks down both in equal measure, but I'm not sure. EDIT: Apologies for the wording of the question (of course you use the serum glucose and stored glycogen first). What I was really getting at is at what rate muscle/fat loss happens in extended starvation. Happy to see that the answers seem to be addressing that. Thanks for reading between the lines. submitted by /u/strong_grey_hero [link] [comments]

I noticed Nice, France looks very tropical. It is at 43 degrees N. I'm in Portland, ME...hardly tropical at 43 degrees N. How is this? Is it because of the Mediterranean? Posted: 15 Jul 2016 06:16 AM PDT submitted by /u/portlandmainah [link] [comments]

Do adult birds ever feed other adult birds? Posted: 14 Jul 2016 09:26 PM PDT I was in a parking lot today, and I saw what appeared to be an adult crow feeding another adult crow, who kept squawking for more. Is this common? What benefit does this behavior have? submitted by /u/MetroidPruyne [link] [comments]

If alcohol damages our livers, why does our alcohol tolerance increase? Posted: 15 Jul 2016 01:55 AM PDT submitted by /u/ur_invalid [link] [comments]

Do the Alpha Centauri stars and the Sun originate from the same supernova? Posted: 14 Jul 2016 01:43 PM PDT So I was thinking of how new stars are born from the remains of dead stars, or nebula, that form accretion disks thanks to gravity. Since nebulas are pretty big and can stretch for lightyears, is it plausible that the matter found in the accretion disks that formed our Sun and the stars of Alpha Centauri, comes from the same dead star? submitted by /u/Spyrith [link] [comments]

Disposal of radioactive material? Why haven't we devised a way to safe cost effective way of launch it into space instead of burying it on our own planet? Posted: 15 Jul 2016 06:52 AM PDT submitted by /u/SearchWIzard498 [link] [comments]

Like animals, are there any food plants or fruit trees got extinct over the years or considered as endangered species which might go extinct soon? Posted: 15 Jul 2016 04:52 AM PDT submitted by /u/Pavit21 [link] [comments]

What is eleven-dimensional supergravity? More specifically, how does it pertain to m-theory? Posted: 15 Jul 2016 06:41 AM PDT I've been reading a lot about the superstring theories. Recently, I read about Edward Witten combining the concepts of S-Duality and T-Duality with the concept of eleven-dimensional supergravity to create the idea of m-theory, essentially combining all of the consistent models of superstring theory. I read a little about how supergravity is basically the combination of general relativity and supersymmetry, but I was left with more questions than were answered. It seems that each time I break down a topic, two more sub-topics arise that I then have to study to understand the previous. Is there a "simplified" (for lack of a better term) explanation of this topic? submitted by /u/TheAlmightyTides [link] [comments]

Black holes slow down time of nearby clocks relative to an outside observer. What is the theoretical effect that a white hole would have on time? Posted: 14 Jul 2016 10:56 AM PDT submitted by /u/UnclePutin [link] [comments]

Helium floats, so how did it end up inside the earth? Posted: 15 Jul 2016 06:25 AM PDT I assume two Hydrogen atoms decided to get all buddy-buddy and become Helium. But where did that Hydrogen come from? Hydrogen is lighter than Helium. Shouldn't have just floated out into space during the earth's formation? Or was there a chemical reaction somewhere in the earth's core that released the Hydrogen/Helium? submitted by /u/TheWarGiraffe [link] [comments]

Could an interstellar spacecraft travel long distances using a few spaced-out propulsive bursts instead of constant propulsion? Posted: 15 Jul 2016 06:19 AM PDT I've been looking at proposed interstellar spacecraft (generation ships, Orion project, Daedalus etc). Some of these use many propulsive nuclear explosions to propel them through space, or solar sails and so on. If space is a vacuum and offers little in the way of drag or resistance, why couldn't a craft just use a few pulses of alternating intensity to accelerate and then just cruise through space? Is it because the acceleration would be too jarring? What if they just used more pulses with slightly more intense bursts over time and cruise in between? Won't that save heaps of fuel? submitted by /u/NoWahls [link] [comments]

What are the different methods of determining the age of fossils or rocks? How reliable and accurate are they? Posted: 15 Jul 2016 06:11 AM PDT Specifically I know that different methods are used for different ages and some methods are more reliable for younger fossils/rocks and others for older fossils and rocks. Maybe a link to a site that lists the different methods and what ages are more appropriate for each method. Thanks. submitted by /u/555545555 [link] [comments]

Is there a limit to the ultimate speed of expansion of the universe? Posted: 15 Jul 2016 06:04 AM PDT According to this article, Astronomers generally agree that the expanding universe is accelerating but I' haven't seen any theories about the limit of acceleration. submitted by /u/ryanasimov [link] [comments]

Why does earth' atmosphere let energy/heat in but does not release it back to space? Posted: 15 Jul 2016 04:34 AM PDT submitted by /u/NimrodX0 [link] [comments]

Why does Central Processing Units have much less cores than a Graphics Processing Unit? Posted: 15 Jul 2016 04:23 AM PDT The CPUs of most PCs today have two or four cores, while the newest GPUs have over 2000 cores. Why is it this way? submitted by /u/gronnmann [link] [comments]

Is the Monty Hall problem the same even if the door opened by the host is chosen at random? Posted: 13 Jul 2016 11:38 AM PDT So the original problem is as follows: Suppose you're on a game show, and you're given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what's behind the doors, opens another door, say No. 3, which has a goat. He then says to you, "Do you want to pick door No. 2?" Is it to your advantage to switch your choice? Wikipedia page: https://en.wikipedia.org/wiki/Monty_Hall_problem If we modify the scenario so that by pure chance the host does not open the winning door nor the one chosen by the contestant (those two doors can be the same one), then does it affect whether or not the best strategy for the contestant is to switch doors after the host opens one door? EDIT: I think we have this one figured out guys! In the scenario where the host has already picked a goat that is not the player door at random, the odds of winning by switching/not switching is 50/50 (but do still read the responses, the debate is not over yet it seems). What really blows my mind here is that the information of the host affects probability even though the two scenarios (original problem and modified) are physically identical from the point of view of the contestant. It's as if probability is transcending physical reality itself. Is probability not real? I think not! O_o Now a follow up question: is this a property of the universe or a quirk that arises from trying to apply probability to things that are physically speaking deterministic? I am wondering if this could have implications in quantum mechanics where things seem to actually be probability driven. Can seemingly two identical systems have different probabilities (observed as different distributions) depending on information itself? EDIT2: I FIGURED IT OUT!!! (Or at least I think I did... Putting the disclaimer here because they are very much needed here.) The answer is that it can be... both 50/50 and 0,33/0,66 depending on how you interpret the question. In short, the question itself is flawed. I simply can not state that things happen in a particular way by pure chance, that statement contradicts itself. Either it is pure chance, in which case the host can choose options that terminate the game early (leading to 50/50), or it is in some way predetermined that the host can not choose the "wrong" doors, in which case the problem is identical to the regular Monty Hall. That being said, the question itself is still a mystery: should you switch? If something has already happened, does it matter whether it was predetermined or not? Is seeing a predetermined goat better information for decision making than seeing a goat at random? Ugh... I think I need a break, my head is starting to hurt again. So... I think I have found a way of making the Monty Hall problem less intuitive. I'm so sorry. submitted by /u/JooJoona [link] [comments]

Why do people have nightmares? Posted: 14 Jul 2016 09:19 PM PDT submitted by /u/SuperheroTrash [link] [comments]

If I'm standing 10ft from a mirror, is it the same as my eyes looking 20ft away or just the 10? Posted: 13 Jul 2016 03:27 PM PDT submitted by /u/kenman125 [link] [comments]

What makes a battery or cell "heavy duty"? How does it differ from a "normal" cell? Posted: 14 Jul 2016 10:45 PM PDT submitted by /u/benfires [link] [comments]

How does lithium work to stabilize moods? Posted: 13 Jul 2016 03:21 PM PDT As in, what does it do to the various transmitters and chemicals and receptors? Does it affect electrical potential between neurons? Is it the toxicity that makes it work? submitted by /u/misterhamtastic [link] [comments]

Can a volcanic eruption poison a large area of land? Posted: 14 Jul 2016 06:28 PM PDT Some background, Im writing something that involves a volcanic eruption destroying a lot of farmland and making it untenable for some time. Is it possible for an eruption, or other volcanic activity, to render a large area of land unable to produce crops/plant-life etc? submitted by /u/A_Verdant_Barrow [link] [comments]

Why would water push larger and heavier rocks/boulders farther up shore than smaller and lighter rocks? Posted: 14 Jul 2016 06:03 PM PDT I was just at a river/inlet from the ocean and it looked like very consistently, larger rocks were pushed father up the banks than smaller rocks. I would think it would be the other way around. The river was a large river in Rhode Island, not sure what type of rocks or whether there could have been a glacial aspect to the rock deposits, but the boulders were massive, but were sometimes pushed much further than smaller lighter rocks. submitted by /u/GuyForgett [link] [comments]

Colligative properties are defined as only relying on the concentration, and not the identity of the molecule. Doesn't the use of the constant, K, for different molecules mean the identity actually does matter? Then why do we define it the way we do? Posted: 14 Jul 2016 11:20 AM PDT submitted by /u/ReallyLikeFood [link] [comments]

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AskScience Panel of Scientists XIV

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• AskScience Panel of Scientists XIV
• AskScience AMA Series: I am /u/CosmoSounder and I study the processes inside supernovae. Ask Me Anything!
• What would have happened to Oil if humans had never drilled it?
• what did the earth look like before life?
• Why does a wet washcloth stick to things, even a fairly smooth tiled shower wall?
• Why do our eyes become red when we cry?
• How do electromagnetic waves work?
• How do people debug software written for large hardware systems?
• Is there much variance in the size of people's eyeballs?
• You can win those "guess-how-many-X's-are-in-the-jar"-games by calculating the average of all the other guesses and put that as your answer, but how does that work?
• Question about about insect gigantism?
• Sometimes I can see the sun and the moon at the same time. How is this possible? Does it mean somewhere else on the planet I would see neither?
• If you put a hole in a mobius strip, is it still a mobius strip?
• How do Significant Digits and Standard of Error work in other Bases?
• Can hair dye cause hair loss?
• Would 100 degree steam really burn you worse than 100 degree water?
• How do the lines of light coming from a light source come about?
• [Physics] What keeps protons and electrons from taking the same space?
• Does a battery weigh more if it is charged?
• Can you measure pain?
• Why do we not have lightning farms?
• What is a Rubens Coil and how to make it?
• Can we use sound waves to dry a wet object or otherwise evaporate water?

AskScience Panel of Scientists XIV Posted: 30 Jan 2016 08:55 AM PST Please read this entire post carefully and format your application appropriately. This post is for new panelist recruitment! The previous one is here. The panel is an informal group of redditors who are either professional scientists or those in training to become so. All panelists have at least a graduate-level familiarity within their declared field of expertise and answer questions from related areas of study. A panelist's expertise is summarized in a color-coded AskScience flair. Membership in the panel comes with access to a panelist subreddit. It is a place for panelists to interact with each other, voice concerns to the moderators, and where the moderators make announcements to the whole panel. It's a good place to network with people who share your interests! You are eligible to join the panel if you: Are studying for at least an MSc. or equivalent degree in the sciences, AND, Are able to communicate your knowledge of your field at a level accessible to various audiences. Instructions for formatting your panelist application: Choose exactly one general field from the side-bar (Physics, Engineering, Social Sciences, etc.). State your specific field in one word or phrase (Neuropathology, Quantum Chemistry, etc.) Succinctly describe your particular area of research in a few words (carbon nanotube dielectric properties, myelin sheath degradation in Parkinsons patients, etc.) Give us a brief synopsis of your education: are you a research scientist for three decades, or a first-year Ph.D. student? Provide links to comments you've made in AskScience which you feel are indicative of your scholarship. Applications will not be approved without several comments made in /r/AskScience itself. Ideally, these comments should clearly indicate your fluency in the fundamentals of your discipline as well as your expertise. We favor comments that contain citations so we can assess its correctness without specific domain knowledge. Here's an example application: Username: /u/foretopsail General field: Anthropology Specific field: Maritime Archaeology Particular areas of research include historical archaeology, archaeometry, and ship construction. Education: MA in archaeology, researcher for several years. Comments: 1, 2, 3, 4. Please do not give us personally identifiable information and please follow the template. We're not going to do real-life background checks - we're just asking for reddit's best behavior. However, several moderators are tasked with monitoring panelist activity, and your credentials will be checked against the academic content of your posts on a continuing basis. You can submit your application by replying to this post. submitted by /u/AskScienceModerator [link] [comments]

AskScience AMA Series: I am /u/CosmoSounder and I study the processes inside supernovae. Ask Me Anything! Posted: 14 Jul 2016 05:00 AM PDT Hi everyone. I do theoretical and computational work on supernova neutrino oscillations and nucleosynthesis. I have worked with trying to predict the neutrino output of a star undergoing the early stages of supernova, and am currently working on a project that will examine the feedback process between neutrino oscillation and nucleosynthesis in supernovae. I should be available between 12-2 EDT (17-19 UTC). AMA! submitted by /u/AskScienceModerator [link] [comments]

What would have happened to Oil if humans had never drilled it? Posted: 14 Jul 2016 03:24 AM PDT Does it become a rock if left alone? Become a gas that bubbles though the cracks to the surface? or has not enough time passed yet to say? submitted by /u/LBLLuke [link] [comments]

what did the earth look like before life? Posted: 13 Jul 2016 10:09 AM PDT submitted by /u/JackandFred [link] [comments]

Why does a wet washcloth stick to things, even a fairly smooth tiled shower wall? Posted: 13 Jul 2016 11:02 PM PDT Currently there is a battle taking place over in ELI5 over this very question. One group is claiming molecular cohesion and the other is claiming a vacuum is created. Could you folks give us a hand? submitted by /u/3rd_Step [link] [comments]

Why do our eyes become red when we cry? Posted: 13 Jul 2016 08:56 PM PDT submitted by /u/dhyanp11 [link] [comments]

How do electromagnetic waves work? Posted: 14 Jul 2016 04:09 AM PDT I understand that the electromagnetic wave is made up of an oscillating pair of electric and magnetic fields that interact with each other. So how do the fields interact and how can this be visualised? I've seen diagrams that depict the two waves shifting back and forth at 90 degree angles in a direction, though don't fields occupy a 3 dimensional space? Meaning that the electromagnetic wave is essentially made of two twisting spirals of potential magnetic and electrical potential in which the electrical field is where the magnetic field is not? On another note, what are these fields made of? Are they particles or simply spaces of energy, if so, how do the waves have a direction of movement? Any kind of in-depth explanation would be hugely appreciated. submitted by /u/SomewhatRealTheFirst [link] [comments]

How do people debug software written for large hardware systems? Posted: 13 Jul 2016 06:31 PM PDT Not sure if I worded the title correctly, but I am genuinely curious as to how software is debugged for something like SpaceX Rockets. How do you test your changes for something like starting the rockets, or the stabilization of the rocket upon descent? How can they be sure what they write is actually working correctly without having it physically tested? A smaller example would be FitBit. FitBit has a sleep monitoring system. How do you debug that? If someone makes a change to the sleep monitoring software, wouldn't the only way to debug it be to actually test it on a sleeping person and get the data back to make sure your change is working? submitted by /u/Gamanis [link] [comments]

Is there much variance in the size of people's eyeballs? Posted: 13 Jul 2016 09:29 PM PDT I notice that some people have "big eyes" but it really seems like the eye openings are bigger, some are surrounded by darker pigment, or the women are wearing mascara, and some eyes are set in at different depths - all of these things can give the appearance of having larger eyes. However, most things on our bodies do have variance so it makes me wonder if the actual eyeballs are of significant sizes. A lot of middle eastern people, especially Arabs have big looking eyes. Could their eyeballs be bigger (on average?) submitted by /u/AsgardDevice [link] [comments]

You can win those "guess-how-many-X's-are-in-the-jar"-games by calculating the average of all the other guesses and put that as your answer, but how does that work? Posted: 13 Jul 2016 09:55 PM PDT submitted by /u/MyotonicDystrophy [link] [comments]

Question about about insect gigantism? Posted: 13 Jul 2016 06:17 PM PDT We know that scientist mostly conclude or assume that insects and plants during the carboniferous period grew so large because of the increased level of oxygen at the time.my question is have scientist tried to prove this? Could they build a botanical garden-like ecosystem and insert cockroaches, dragonflies, etc. And over time increase the oxygen in the ecosystem and over the course of 20-25 insect generations see an increase in size maybe? Thanks submitted by /u/12washingbeard [link] [comments]

Sometimes I can see the sun and the moon at the same time. How is this possible? Does it mean somewhere else on the planet I would see neither? Posted: 14 Jul 2016 03:35 AM PDT submitted by /u/inz_paradox [link] [comments]

If you put a hole in a mobius strip, is it still a mobius strip? Posted: 13 Jul 2016 02:58 PM PDT if a mobius strip has one edge and one side, then if you punch a hole in one, thereby giving it 2 edges, is it still really a mobius strip? submitted by /u/EvilGeniusSkis [link] [comments]

How do Significant Digits and Standard of Error work in other Bases? Posted: 13 Jul 2016 07:51 AM PDT I have a pretty solid understanding of significant digits in base 10. What are the repercussions of using significant digits in a small base (eg base 2) or a large base (eg base 60)? Bonus: how to keep the same significant digits (in meaning) when switching bases. submitted by /u/PM_ME_FANTASY_WORLDS [link] [comments]

Can hair dye cause hair loss? Posted: 14 Jul 2016 05:36 AM PDT What's the scientific evidence that hair dye can cause (or exacerbate) hair loss? I've googled and seen claims to the effect that there is zero reason to worry that hair dye can cause hair to fall out, but I'm not sure how reliable those claims are. submitted by /u/eferguson [link] [comments]

Would 100 degree steam really burn you worse than 100 degree water? Posted: 13 Jul 2016 06:30 PM PDT I recently read the claim that steam will burn you worse than water, because it has more energy per kilo, but wouldn't the much lower density of steam mean the opposite was true? submitted by /u/CyclopsPrate [link] [comments]

How do the lines of light coming from a light source come about? Posted: 13 Jul 2016 08:23 PM PDT Like when you stare at a strong light you can see rays of light extending a little around it. It can be even more prominent when you are nearsighted. Bonus question, and the real reason I posted this question: explain why when i saw my phone flashlight reflected in the tv it had exactly 4 rays and all perpendicular. One line vertical and one horizontal. Moving my head and phone did not change the orientation of the rays. submitted by /u/harshlax94 [link] [comments]

[Physics] What keeps protons and electrons from taking the same space? Posted: 13 Jul 2016 03:47 PM PDT After watching a video with Richard Feynman where he briefly talks about normal forces being a result of electromagnetic forces, what is the force "pushes back" protons and electrons when they touch each other? If they attract more the closer they are to each other, shouldn't there be something that pushes them away when they are touching or colliding? Does this never happen, or does something completely different happen? submitted by /u/kevinmbt [link] [comments]

Does a battery weigh more if it is charged? Posted: 13 Jul 2016 04:34 PM PDT Would a charged battery weigh more than a discharged one. (I'm thinking the type of battery in phones.) If the change is small, how big would a battery have to be for it to be noticeable? submitted by /u/immortalgoomba [link] [comments]

Can you measure pain? Posted: 13 Jul 2016 03:06 PM PDT Some people say the pain giving birth is equivalent to breaking a certain amount of bones or whatever, but surely breaking bones is less painful for some people than others? Isn't pain relative to each person? submitted by /u/tangerinedangerine [link] [comments]

Why do we not have lightning farms? Posted: 13 Jul 2016 02:14 PM PDT I live close to these towers and see storms like this frequently. Seems like the towers could be doing a bigger job. What's missing from my utopian lightning farm plan? xpost /r/denver submitted by /u/quaoarpower [link] [comments]

What is a Rubens Coil and how to make it? Posted: 14 Jul 2016 02:08 AM PDT Hello Reddit! I'm a high school student in South Korea and am currently researching how magnetic fields effect ant behavior. I've searched on the internet for ways to make a device that generates an even magnetic field that I can adjust the strength of. I found something called a Rubens Coil. Unfortunately I can't find any information on what it is and how to make it. Could someone explain what it is and how to make it? And, if possible, could someone suggest another method to make a device for this research? submitted by /u/sysyyang9184 [link] [comments]

Can we use sound waves to dry a wet object or otherwise evaporate water? Posted: 13 Jul 2016 10:01 PM PDT submitted by /u/eschybach [link] [comments]

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Can a Mars Colony be built so deep underground that it's pressure and temp is equal to Earth?

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• Can a Mars Colony be built so deep underground that it's pressure and temp is equal to Earth?
• Why does gold "Blink" when it solidifies?
• What is the maximum depth humans could reasonably live underground before the earth's internal heat became a problem?
• How are "unhealthy" activities - like smoking, etc - that raise your heart rate different physiologically from "health" activities - like taking a walk? Does your heart get a workout either way?
• Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology
• Do migratory animals born in captivity exhibit migratory instincts?
• Will the genes I pass to my son be influenced by my life experiences ?
• How can we hear noise from the sun? I've heard audio, and it sounds like a deep rumble.
• How does the neutron core of a Thorne-Zykow object affect the lifespan of it's 'parent' star?
• What caused snowball earth to stop freezing?
• What are measurable signs of quality sleep?
• Why do all children's drawings look alike? Does it have anything to do with a norm instilled on them, or some kind of "Collective Unconscious"?
• Why are valleys and canyons so hot and mountain tops so cold if heat is supposed to rise?
• Are all galaxies eventually going to become spiral galaxies?
• If I desiccate stale cereal, would it be like new as far as crunchy/crispiness?
• What are some of the effects of social isolation during childhood?
• When an object's color is due to absorbing only certain photons, how can it continuously absorb those photons? Why don't the electrons in their excited state remain there, and stop absorbing the light?
• If you happened to be suspended in interstellar space, not traveling in any direction, and the Voyager 1 flew past you at 17 km/s, what would happen?
• Why are electrical circuits made the way they are?
• How does a woodpecker not get multiple concussions?
• Which one provides more energy? Protein or Carbohydrate?
• Why is it that when I'm sick I lose my appetite?
• If you drop a rock on the open sea, where the water is 2 miles deep, how long will it take to hit the bottom?
• When was the biggest leap in human longevity (average life expectancy) and why?

Can a Mars Colony be built so deep underground that it's pressure and temp is equal to Earth? Posted: 12 Jul 2016 01:22 PM PDT Just seems like a better choice if its possible. No reason it seems to be exposed to the surface at all unless they have to. Could the air pressure and temp be better controlled underground with a solid barrier of rock and permafrost above the colony? With some artificial lighting and some plumbing, couldn't plant biomes be easily established there too? Sorta like the Genesis Cave submitted by /u/2Mobile [link] [comments]

Why does gold "Blink" when it solidifies? Posted: 12 Jul 2016 08:09 AM PDT I was watching this & i was kinda shocked about the little blink gold does when it solidifies. Is this common amongst other metals? Why does it do that? im guessing it has to do with conductivity submitted by /u/PM_ME_PINK_NIPS [link] [comments]

What is the maximum depth humans could reasonably live underground before the earth's internal heat became a problem? Posted: 12 Jul 2016 01:30 PM PDT I've been trying to research the way the earth heats up as you get deeper and deeper (geothermal gradient), but the focus is mostly on super-deep gradients for oil, geothermal, or geological surveys. I understand that this depth could vary wildly depending on where you chose, so choose wherever might be reasonable to build an underground city or whatever. :) submitted by /u/r7w [link] [comments]

How are "unhealthy" activities - like smoking, etc - that raise your heart rate different physiologically from "health" activities - like taking a walk? Does your heart get a workout either way? Posted: 12 Jul 2016 10:07 AM PDT submitted by /u/GreensburgZombie [link] [comments]

Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology Posted: 13 Jul 2016 08:05 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Biology, Chemistry, Neuroscience, Medicine, Psychology 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]

Do migratory animals born in captivity exhibit migratory instincts? Posted: 12 Jul 2016 10:42 AM PDT For example, if a monarch butterfly is born and living in captivity, will it try to migrate along with wild monarchs? What about birds, mammals, etc? submitted by /u/Me_for_President [link] [comments]

Will the genes I pass to my son be influenced by my life experiences ? Posted: 12 Jul 2016 11:39 AM PDT That is to say, will his genes be natures mix of the genes I was born wit and the genes his mother was born with ? Or have our (mine and those of his mother) genes evolved during our lives such that the next ''iteration' of our genes will be influenced by our nurtured characteristics ? submitted by /u/doublejay1999 [link] [comments]

How can we hear noise from the sun? I've heard audio, and it sounds like a deep rumble. Posted: 13 Jul 2016 03:28 AM PDT submitted by /u/SirDgor [link] [comments]

How does the neutron core of a Thorne-Zykow object affect the lifespan of it's 'parent' star? Posted: 13 Jul 2016 03:25 AM PDT Does the neutron core produce any outward pressure that could keep the parent star 'alive' past the time it would usually cease fusion and go supernova? Also how is the fusion in the parent core affected by the neutron's presence, does the neutron star accrete any of the core's matter and as a result get pushed past it's TOV limit? Final question - is there any chance that something other than a neutron star can create a TZ object, like another smaller regular star or a white dwarf? I'm very curious about the physics behind these strange wonders and how exactly they interact with each other. submitted by /u/DraumrKopa [link] [comments]

What caused snowball earth to stop freezing? Posted: 13 Jul 2016 06:37 AM PDT I was watching a documentary and AFAIK it was careening downwards into snowy oblivion and then it just grinded to a halt and started warming back up. I dont feel like micro-organsims, as many as were left could have created a combined CO2 count in the atmosphere to make a difference in temperature. Especially considering they were hidden randomly in the world trying to survive. What else could have contributed to earth heating up? submitted by /u/idontgetthejoke1 [link] [comments]

What are measurable signs of quality sleep? Posted: 12 Jul 2016 09:05 PM PDT submitted by /u/brahhhbies [link] [comments]

Why do all children's drawings look alike? Does it have anything to do with a norm instilled on them, or some kind of "Collective Unconscious"? Posted: 12 Jul 2016 06:48 PM PDT So I just read a book that raised an interesting point. Every children's drawings of a house looks the same. You know the typical drawing: A square house with a triangular roof, and always a chimney sticking out of it. Two to four windows, and a highly simplistic door. Individual flowers growing out of the ground. And if a tree is added, it is always an apple tree. I'm going to bet that if your child (or you, as a child) drew like that, your real house looks NOTHING like it. And I'm sure that it's drawn like this all around the world and across multiple cultures and countries. So I have to ask, is there any psychological or social reason for this? Is it because they can't draw complex shapes at such an early age, or is it because of a sort of collective unconscious? submitted by /u/VillainousToast [link] [comments]

Why are valleys and canyons so hot and mountain tops so cold if heat is supposed to rise? Posted: 12 Jul 2016 07:40 PM PDT submitted by /u/elleleelee [link] [comments]

Are all galaxies eventually going to become spiral galaxies? Posted: 12 Jul 2016 09:07 PM PDT Because of the way gravity works, objects tend to choose a favorable direction and plane of motion. This is why the planets in our solar system all revolve in the same direction and are (as far as I know) on the same plane. Does this principle hold true for galaxies where there are billions of objects which are all massive, and does this mean that all galaxies are eventually going to become spiral galaxies? submitted by /u/Chinney97 [link] [comments]

If I desiccate stale cereal, would it be like new as far as crunchy/crispiness? Posted: 12 Jul 2016 08:46 PM PDT submitted by /u/Hashi856 [link] [comments]

What are some of the effects of social isolation during childhood? Posted: 12 Jul 2016 06:11 PM PDT submitted by /u/coolman50544 [link] [comments]

When an object's color is due to absorbing only certain photons, how can it continuously absorb those photons? Why don't the electrons in their excited state remain there, and stop absorbing the light? Posted: 12 Jul 2016 12:52 PM PDT A red shirt is red because it absorbs all visible light other than red. How can the shirt continuously absorb all of the other photons? Is the continuous stream of input energy given off through other parts of the EM spectrum? submitted by /u/Senor_Tucan [link] [comments]

If you happened to be suspended in interstellar space, not traveling in any direction, and the Voyager 1 flew past you at 17 km/s, what would happen? Posted: 12 Jul 2016 09:41 PM PDT Would you see it coming from the distance? Would you see nothing and then witness a flash? Would there be a physical or audible shockwave? submitted by /u/Johnny-Moondog [link] [comments]

Why are electrical circuits made the way they are? Posted: 13 Jul 2016 05:11 AM PDT I don't really understand why electrical circuits need to be arranged certain ways. Why do we arrange resistors, etc. the way they are? Is it to get current/voltage down to the right level to power devices connected to the circuit? I realize this is somewhat of a vague question I'm finding it hard to put into words. submitted by /u/lemonnohope [link] [comments]

How does a woodpecker not get multiple concussions? Posted: 12 Jul 2016 06:37 PM PDT I had to ask after seeing this: http://imgur.com/gallery/uGvLn Isn't the brain smacking the inside of the skull repeatedly?? Do they have some kind of safeguard in there exclusive to them? submitted by /u/AgentTimex [link] [comments]

Which one provides more energy? Protein or Carbohydrate? Posted: 12 Jul 2016 06:22 PM PDT My teacher told me that, if you have a lojg marathon then you should eat proteins because carbohydrates get burn off quickly. But I don't understand how proteins will be able to provide energy? submitted by /u/Freezy_Cold [link] [comments]

Why is it that when I'm sick I lose my appetite? Posted: 12 Jul 2016 06:59 PM PDT Shouldn't I be voraciously hungry to help recover? submitted by /u/MyBalled [link] [comments]

If you drop a rock on the open sea, where the water is 2 miles deep, how long will it take to hit the bottom? Posted: 12 Jul 2016 06:31 PM PDT submitted by /u/Sharp_Espeon [link] [comments]

When was the biggest leap in human longevity (average life expectancy) and why? Posted: 12 Jul 2016 01:59 PM PDT For example, I remember hearing 25 was old thousands of years ago, so when was the biggest leap in average life expectancy? (From the dawn of our current race, not including early homonids) submitted by /u/Fawskeen [link] [comments]

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