Two of the same type of metals will bond together in space?

---

• Two of the same type of metals will bond together in space?
• Have we learned anything new from mars that we didn't already know before landing there with a rover?
• What's going on photon-wise with shiny black surfaces? Shouldn't black absorb all the light?
• What would happen if you explode a hydrogen bomb in a kilometer-thick metal sphere?
• I read that astronauts DNA can be “shattered” by cosmic rays, what does this actually mean?
• In what format do nerves relay information to the brain? i.e., how does the brain “read” the information it receives from the nervous system?
• Do overall suicide rates decline when methods are made unavailable? E.g., do areas with low firearm ownership have lower overall suicide rates, or do people just try other methods?
• What are birds sleep pattern like?
• How much does working a drive thru window at a fast food restaurant increase your chance of complications from exposure to higher amounts of exhaust fumes?
• There are some of the belief that if lotion is used on one's skin, the skin becomes dependent on it, what is the correct viewpoint/why?
• Is there a highest possible state for the quantum harmonic oscillator?
• How much did the Earth's average temperature decline due to the Chicxulub Impact?
• What influences the varied effects of different strains of cannabis?
• Does all the heat in the molten mantle and core of the earth affect average surface temperature at all?
• Is basal metabolic rate related to heart rate in humans?
• why do auroras only happen at the poles?
• How were the Appalachian Mountains and Allegheny Plateau formed?
• What would be the effects of a major asteroid impact in the ocean compared to one on land?
• What is the most recent area of the human brain in terms of evolution and what are its implications in our neurophysiology?
• Motor skills question--From a neurological perspective, why can I draw well, but I suck at catching a football?
• How to formulate classical perturbations without using Hamilton-Jacobi equation, or action angle variables?
• What's the speed of space?
• Is there a point where water is under enough pressure that it's boiling point is above it's point of incandescence but remains a liquid?
• Does space expand inside a black hole?

Two of the same type of metals will bond together in space? Posted: 01 Jul 2016 03:58 AM PDT Just got a interesting Snapple fact! Says that if two of the same type of metals touch in space they will bond together permanently! Why does this happen? And when it does how fast does it occur? submitted by /u/Sgtpeppers1985 [link] [comments]

Have we learned anything new from mars that we didn't already know before landing there with a rover? Posted: 01 Jul 2016 05:47 AM PDT submitted by /u/workbot1 [link] [comments]

What's going on photon-wise with shiny black surfaces? Shouldn't black absorb all the light? Posted: 01 Jul 2016 06:19 AM PDT While we're at it, how can something be both transparent and shiny? submitted by /u/pm_me_yr_succulents [link] [comments]

What would happen if you explode a hydrogen bomb in a kilometer-thick metal sphere? Posted: 30 Jun 2016 06:22 PM PDT For example a 10 megaton hydrogen bomb going off in a kilometer thick lead sphere. Will it amplify the explosion kind of like a boiling liquid expanding vapor explosion? Or will nothing really happen and the lead sphere would contain the explosion? submitted by /u/scasm [link] [comments]

I read that astronauts DNA can be “shattered” by cosmic rays, what does this actually mean? Posted: 30 Jun 2016 07:33 PM PDT My question came from reading an article about our Sun going blank and maybe heading toward a 'solar minimum'. Which causes cosmic rays dangerous to astronauts, article link here: http://www.news.com.au/technology/science/space/the-sun-has-gone-blank-twice-this-month-this-is-what-it-means/news-story/d775ecf894ab68415ed0108ced31a4e2 submitted by /u/Infinite_Monkee [link] [comments]

In what format do nerves relay information to the brain? i.e., how does the brain “read” the information it receives from the nervous system? Posted: 30 Jun 2016 08:30 PM PDT submitted by /u/whoasettastoned [link] [comments]

Do overall suicide rates decline when methods are made unavailable? E.g., do areas with low firearm ownership have lower overall suicide rates, or do people just try other methods? Posted: 30 Jun 2016 05:52 PM PDT I've heard that in the 60s the UK switched from one type of gas for stoves (which had carbon monoxide in it) to another (which didn't), and thus people were no longer able to asphyxiate themselves with carbon monoxide. It apparently led to an overall reduction in suicide rates, the explanation being that suicidal people don't easily take the final step to try to kill themselves, and if there's no convenient method, often suicidal urge passes before they can find a way to follow through. I also read (from a non-scientific source; just a news story) that something similar happened in Sri Lanka when pesticides were switched so they were less dangerous for humans. This is the same logic with putting barricades or nets that make it harder to jump off bridges. But is this true? Or is it just correlation, not causation? submitted by /u/ryanznock [link] [comments]

What are birds sleep pattern like? Posted: 30 Jun 2016 08:07 PM PDT Well I want to expand this question a bit more. How do mammals, reptilian, and avian sleep patterns differ? Which species sleep more and less and what are the advantages they get for doing so. Finally why the fuck do roosters go on and on from 4 a.m. to 7a.m. is that their mating time? submitted by /u/occupythekitchen [link] [comments]

How much does working a drive thru window at a fast food restaurant increase your chance of complications from exposure to higher amounts of exhaust fumes? Posted: 30 Jun 2016 06:15 PM PDT submitted by /u/elane5813 [link] [comments]

There are some of the belief that if lotion is used on one's skin, the skin becomes dependent on it, what is the correct viewpoint/why? Posted: 01 Jul 2016 12:53 AM PDT I assume they mean that if you use lotion, your skin HAS to have lotion subsequently or it would dry up tremendously. submitted by /u/Weep2D2 [link] [comments]

Is there a highest possible state for the quantum harmonic oscillator? Posted: 01 Jul 2016 02:48 AM PDT The classical potential of an idealized harmonic oscillator describes a parabola going to infinity. There could therefore be an infinite number of eigenfunctions of the quantum harmonic oscillator. Is there a certain limit imposed by the rules of quantum mechanics or does the oscillator just sort of break down at certain energies like a classical spring that would be irreversibly deformed? Representation of the eigenfunctions from wikipedia submitted by /u/Mephisto6 [link] [comments]

How much did the Earth's average temperature decline due to the Chicxulub Impact? Posted: 30 Jun 2016 07:30 PM PDT We know that the asteroid impact that tool place at the end of the Cretaceous had various deadly effects. But I wonder how bad the temperature drop was, and if the lowered temperature was the main agent of ecological collapse, or if poor light levels (cutting down photosynthesis) were. submitted by /u/Albacorewing [link] [comments]

What influences the varied effects of different strains of cannabis? Posted: 30 Jun 2016 11:27 PM PDT I'm looking for a more in depth answer than 'genetics brah!' Is it just about THC/CBD ratio? Other cannabinoids? Terpenes? What? submitted by /u/enjoyyourshrimp [link] [comments]

Does all the heat in the molten mantle and core of the earth affect average surface temperature at all? Posted: 30 Jun 2016 06:20 PM PDT submitted by /u/industrial86 [link] [comments]

Is basal metabolic rate related to heart rate in humans? Posted: 30 Jun 2016 11:39 PM PDT Most of the relationships I've seen for calculating BMR do not factor in heart rates, but calculations for calorie use during exercise are all related to heart rate. In people with elevated hear rates (e.g Tachycardia sufferers) is the basal metabolic rate also increased? submitted by /u/movingpointy [link] [comments]

why do auroras only happen at the poles? Posted: 01 Jul 2016 04:33 AM PDT I thought it happened because the sun's radiation kinda skimmed across the atmosphere on a tangent to the earth's surface... but doesn't that happen at other latitudes as well?? what am I missing? submitted by /u/usernumber36 [link] [comments]

How were the Appalachian Mountains and Allegheny Plateau formed? Posted: 30 Jun 2016 10:27 PM PDT Hello! I'm doing some research for a project and I'm trying to wrap my head around the formation of the Appalachian Mountains and the Allegheny Plateau (specifically in Southeastern Ohio). From what I've gathered so far - The mountains were first formed as part of the Central Pangean Mountains when Laurussia and Gondwana collided. Rivers and streams began to flow down from the mountains and formed a large delta to the north and northwest. Then, over time, the mountains slowly eroded down fairly small. At the same time, Pangea began to break up, and the release of the pressure caused the mountains to further subside until they were eventually under water and formed the Appalachian Basin. Then, during the cenozoic era, uplift began again and the mountains began to rise once more. The delta and part of the sea floor to the northwest also began to rise and that formed the Allegheny Plateau, hence why it's flat (except where it's been eroded away, of course). Am I anywhere close to being right on any of this? I am NOT a geologist, but I'm really fascinated by these events and really want to get my facts straight. Thanks!! submitted by /u/3oons [link] [comments]

What would be the effects of a major asteroid impact in the ocean compared to one on land? Posted: 30 Jun 2016 06:11 PM PDT This article made me realize that I have never heard of any significant asteroid impacts occurring in the ocean. But, since 70% of the Earth is water, I assume it must happen (relatively) often. If such events have been recorded, how did we find evidence of them, and how would they affect the planet compared to an impact on land? submitted by /u/Bentingey [link] [comments]

What is the most recent area of the human brain in terms of evolution and what are its implications in our neurophysiology? Posted: 30 Jun 2016 05:45 PM PDT submitted by /u/Khiv_ [link] [comments]

Motor skills question--From a neurological perspective, why can I draw well, but I suck at catching a football? Posted: 30 Jun 2016 08:44 PM PDT What, and why is there a difference between fine and gross motor skills? From a neurological perspective why is it possible to be competent at one and incompetent at the other? Is coordination an inherited trait or is learned? submitted by /u/rosstimus [link] [comments]

How to formulate classical perturbations without using Hamilton-Jacobi equation, or action angle variables? Posted: 30 Jun 2016 07:45 PM PDT Hey guys, I'm studying for grad school prelims and trying to understand classical perturbation. Sadly, I'm having some difficulty. I'm working through Goldstein, and his discussion starts in the HJ formalism. I don't really "get" the idea of HJ - I'm not sure what the point is, or how it really works. I've read through the relevant chapters in Goldstein (and other texts I found online) several times, and it still isn't clicking. I've tried to find some other resources, but so far all the texts and professor notes I can find follow the same tract as Goldstein. Is this strictly necessary? Do I really need to use the HJ formalism to study classical perturbations? Can't I just work with good ol' q and p and find the same solution? submitted by /u/e_ikx [link] [comments]

What's the speed of space? Posted: 01 Jul 2016 06:57 AM PDT Gravitational Waves are basically ripples in the fabric of space time, What is the maximum speed at which these ripples can propagate? and is it c, if yes then why and how is it related to it ? submitted by /u/TheNASAguy [link] [comments]

Is there a point where water is under enough pressure that it's boiling point is above it's point of incandescence but remains a liquid? Posted: 01 Jul 2016 03:03 AM PDT submitted by /u/DraumrKopa [link] [comments]

Does space expand inside a black hole? Posted: 01 Jul 2016 06:32 AM PDT In the same way that the universe is expanding generally? submitted by /u/fingernail [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

AskScience AMA: I’m Professor Brian Hare, a pioneer of canine cognition research, here to discuss the inner workings of a dog’s brain, including how they see the world and the cognitive skills that influence your dog's personality and behavior. AMA!

---

• AskScience AMA: I’m Professor Brian Hare, a pioneer of canine cognition research, here to discuss the inner workings of a dog’s brain, including how they see the world and the cognitive skills that influence your dog's personality and behavior. AMA!
• DRACO (a potential cure for most viruses) will it really work?
• Why does squinting improve my far vision?
• How much coal and ancient flora would a diamond of this size require to make? (Link inside)
• Would a world economy run by Artificial Intelligence work?
• Are there any possible roadblocks in the construction of a near-supercooling of conventional computer components?
• What exactly is a "Lagrangian" and when would I use it?
• Emission Spectrums?
• Why is an event horizon neccesary for Hawking radiation? All explanations I've read so far seem like they would work just as well for a gravitational field that's not strong enough to create an event horizon.
• What happens to the ants when a couple square miles unexpectedly floods, do they all die and new colonies slowly move in?
• Is it possible/viable to reflect sunlight onto a thermoelectric generator to produce electricity?
• Would placing a turbine at the exhaust of a rocket work?
• Will it be possible to print bacteria and viruses from 3D printers in the future?
• Is it mathematically significant for sets of consecutive numbers to add up to a prime number or does it happen often enough that nobody cares?
• Why does mountain air smell so sweet?
• Are there chemicals that get released in my brain while asleep that cause me to think more clearly in the morning?
• Why do some of us go mad/insane?
• Why do glaciers from the same ice field recede and advance at different rates?
• How does the human mind recognize faces?
• Why don't GPS satellites use a low earth orbit?
• Why is the force of kinetic friction less that the force of static friction?
• Is it possible to induce gigantism in humans or other animals by using a device to press on the pituitary gland? Are there any cases of this?

AskScience AMA: I’m Professor Brian Hare, a pioneer of canine cognition research, here to discuss the inner workings of a dog’s brain, including how they see the world and the cognitive skills that influence your dog's personality and behavior. AMA! Posted: 30 Jun 2016 04:33 AM PDT Hi Reddit! I'm Brian Hare, and I'm here to talk about canine cognition and how ordinary and extraordinary dog behaviors reveal the role of cognition in the rich mental lives of dogs. The scientific community has made huge strides in our understanding of dogs' cognitive abilities – I'm excited to share some of the latest and most fascinating – and sometimes surprising – discoveries with you. Did you know, for example, that some dogs can learn words like human infants? Or some dogs can detect cancer? What makes dogs so successful at winning our hearts? A bit more about me: I'm an associate professor at Duke University where I founded and direct the Duke Canine Cognition Center, which is the first center in the U.S. dedicated to studying how dogs think and feel. Our work is being used to improve training techniques, inform ideas about canine cognitive health and identify the best service and bomb detecting dogs. I helped reveal the love and bond mechanism between humans and dogs. Based on this research, I co-founded Dognition, an online tool featuring fun, science-based games that anyone with a dog can use to better understand how their dog thinks compared to other dogs. Let's talk about the amazing things dogs can do and why – Ask Me Anything! For background: Please learn more about me in my bio here or check me out in the new podcast series DogSmarts by Purina Pro Plan on iTunes and Google Play to learn more about dog cognition. This AMA is being facilitated as part of a partnership between Dognition and Purina Pro Plan BRIGHT MIND, a breakthrough innovation for dogs that provides brain-supporting nutrition for cognitive health. I'll be back at 1 pm EST to answer your questions, ask me anything! submitted by /u/Dr_Brian_Hare [link] [comments]

DRACO (a potential cure for most viruses) will it really work? Posted: 29 Jun 2016 11:24 PM PDT Do yo guys have any interesting thoughts? I did my research and even read the AMA that was done 8 months ago. I understand that funding is the biggest problem but why wouldn't any multi-millionaire or billionaire try to fund him? not even one?!? submitted by /u/119redditerium [link] [comments]

Why does squinting improve my far vision? Posted: 29 Jun 2016 11:54 PM PDT submitted by /u/Fazion [link] [comments]

How much coal and ancient flora would a diamond of this size require to make? (Link inside) Posted: 30 Jun 2016 05:56 AM PDT http://www.bloomberg.com/news/articles/2016-06-29/biggest-diamond-in-more-than-a-century-fails-to-sell-in-london submitted by /u/The_Safe_For_Work [link] [comments]

Would a world economy run by Artificial Intelligence work? Posted: 30 Jun 2016 12:18 AM PDT Imagine a world in which the government was operated by "super computers" post-singularity? Could it work? This Artificial Intelligence would intimately know every human on earth (something like the internet) - it would thus be omnipresent and omnipotent, but also (ideally) ethical and humane. This government could also be a combination of human input and A.I. and could operate like a brain or symbiotic relationship. Would A.I. governments solve problems like free energy, or is it only possible once free energy is discovered? Would there even be trade (economies) with such a system in place? In a response, please explain how you think a world economy that embraces Artificial Intelligence would look/operate. submitted by /u/kylevbennett [link] [comments]

Are there any possible roadblocks in the construction of a near-supercooling of conventional computer components? Posted: 30 Jun 2016 12:15 AM PDT I know, I know, conventional conductors are not superconductive, but their conductivity is still positively affected by extremely low temperatures. I was toying with the idea of somehow creating a liquid nitrogen-cooled computer, (For, you know, gaming, I guess.) the problem being with the parts. I don't know very much about cryonics, and I don't know whether the polymer used in the construction of circuit boards will somehow degrade in super-low temperatures. I would like your take on the situation, and I am alright with hearing that this idea is completely impossible. EDIT: Sorry, it's 2am here. Let me try again at that title. "Are there any possible roadblocks in the construction of a cryonic computer using conventional computer components?" submitted by /u/bpor68 [link] [comments]

What exactly is a "Lagrangian" and when would I use it? Posted: 29 Jun 2016 07:56 PM PDT From reading a little, it seems to be a more convenient reformulation of Newton's laws, but I'm having trouble understanding exactly how, and why it is more convenient. submitted by /u/MapsAreCool [link] [comments]

Emission Spectrums? Posted: 30 Jun 2016 01:03 AM PDT Can someone simplify Emission Spectrums? submitted by /u/sonofeson [link] [comments]

Why is an event horizon neccesary for Hawking radiation? All explanations I've read so far seem like they would work just as well for a gravitational field that's not strong enough to create an event horizon. Posted: 30 Jun 2016 07:06 AM PDT submitted by /u/AWildBugHasAppeared [link] [comments]

What happens to the ants when a couple square miles unexpectedly floods, do they all die and new colonies slowly move in? Posted: 29 Jun 2016 03:26 PM PDT submitted by /u/mrhickey [link] [comments]

Is it possible/viable to reflect sunlight onto a thermoelectric generator to produce electricity? Posted: 30 Jun 2016 12:38 AM PDT I stumbled upon this video and I wondered if it would be possible to use the heat generated to power a thermoelectric generator? Are there some phenomena or practical limitations that prevent us from doing this? If possible, how does the kwH generation of it compare to that of a solar panel? submitted by /u/Cheezychipz [link] [comments]

Would placing a turbine at the exhaust of a rocket work? Posted: 29 Jun 2016 11:33 PM PDT were you to place a turbine just before the shock waves in a rocket nozzle could you convert the direct thrust of the rocket into mechanical force with any amount of efficiency or am i missing something? submitted by /u/10wilkine [link] [comments]

Will it be possible to print bacteria and viruses from 3D printers in the future? Posted: 29 Jun 2016 06:23 PM PDT submitted by /u/blahblahbla39 [link] [comments]

Is it mathematically significant for sets of consecutive numbers to add up to a prime number or does it happen often enough that nobody cares? Posted: 29 Jun 2016 06:28 PM PDT submitted by /u/blank_zilla [link] [comments]

Why does mountain air smell so sweet? Posted: 29 Jun 2016 06:17 PM PDT submitted by /u/BecauseDan [link] [comments]

Are there chemicals that get released in my brain while asleep that cause me to think more clearly in the morning? Posted: 29 Jun 2016 06:54 PM PDT I've noticed that right after I wake up, especially if its from the middle of a dream, my mind seems like it has that "'moment of clarity" effect...my thinking seems clearer and more rational, as well as more creative and active in ways. Is there a word for this phenomena? Are there chemicals that get released in my brain while asleep that would cause this effect? submitted by /u/__ZEE [link] [comments]

Why do some of us go mad/insane? Posted: 29 Jun 2016 06:47 PM PDT submitted by /u/vintagedino [link] [comments]

Why do glaciers from the same ice field recede and advance at different rates? Posted: 29 Jun 2016 10:24 PM PDT I work in Alaska as a captain on tour boats in glacial fjords. One glacier in particular (South Sawyer Glacier in Tracy Arm) has receded almost a mile since last fall. North Sawyer Glacier in Tracy Arm has remained almost stationary in the same timeframe. What causes one to behave so differently from the other? submitted by /u/fajord [link] [comments]

How does the human mind recognize faces? Posted: 29 Jun 2016 11:26 PM PDT In addition, how long does it take before a human can memorize a face? Like, why can't humans typically recognize random faces that they saw at a store on a given day? It seems to me that it takes more than just 30 seconds to memorize a face, but why? submitted by /u/sfzach [link] [comments]

Why don't GPS satellites use a low earth orbit? Posted: 29 Jun 2016 05:58 PM PDT GPS, Glonass and Galileo all use a medium earth orbit of around 20,000 km. What factors prevented them choosing a low earth orbit of say 400 km? You'd think launching them would be cheaper and simpler, and communication with them would be easier, albeit requiring adjustments to the mathematics used. submitted by /u/fjw [link] [comments]

Why is the force of kinetic friction less that the force of static friction? Posted: 29 Jun 2016 10:52 PM PDT We all know that once youve started moving something, it is easier to keep pushing than it was to initially move it. This is due to the co efficient of static friction being greater than the coefficient for kinetic friction right? But why is that? submitted by /u/Peter_See [link] [comments]

Is it possible to induce gigantism in humans or other animals by using a device to press on the pituitary gland? Are there any cases of this? Posted: 29 Jun 2016 11:13 AM PDT submitted by /u/pzdobrovski [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

What are the physics behind different baseball pitches?

---

• What are the physics behind different baseball pitches?
• If I set my water temperature to 50 deg celsius and have a shower why does the bathroom fill with steam, as this is half of the boiling point?
• Why isn't a Bose-Einstein condensate get talked about much in lower level science classes even though it's considered a "state of matter"Or is this different than being a solid, liquid, gas, or plasma?
• Do you get lighter the further underground that you go?
• Modeling a wave(water)?
• In the 'Light Echo' images of the V838 Monocerotis star why are the leading edges blue?
• Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
• Do gravitational waves lose energy?
• What specifically is stopping people from finding an analytical solution to the Navier-Stokes equations under turbulent conditions?
• Can every possible shape (drawn by a graph in a coordinate system) be represented by an equation? If so, how can a shape be turned into an equation?
• I read that since gravity is only attractive, the graviton would have to have a spin of 2. What does odd/even spin have to do with attractive/repulsive forces?
• Do we have any idea of what selective pressures might have acted upon the evolution of spermalege and traumatic copulation in bedbugs?
• How fast do I need to drive to keep watching the sunset?
• What is Angular Momentum how does it work and what the Laws Behind it?
• In movies "going into shock" after an injury is always bad, but isn't it one of the body's defense mechanisms? How could it help?
• Is it possible to have nonzero acceleration and zero velocity in this example?
• Which temperature does an electron beam have?
• How does stored body fat get metabolized by the body?
• How much do we really understand about magnetism?
• Why didn't humans evolve to like vegetables and not like very sugary foods?
• Why do detergents dissolve oils, but not greases? What's special about degreaser that does?

What are the physics behind different baseball pitches? Posted: 28 Jun 2016 07:22 PM PDT What makes a sinker sink? a curveball curve? a fastball straight? submitted by /u/narcules [link] [comments]

If I set my water temperature to 50 deg celsius and have a shower why does the bathroom fill with steam, as this is half of the boiling point? Posted: 28 Jun 2016 11:42 PM PDT submitted by /u/Mcawesomerobot [link] [comments]

Why isn't a Bose-Einstein condensate get talked about much in lower level science classes even though it's considered a "state of matter"Or is this different than being a solid, liquid, gas, or plasma? Posted: 29 Jun 2016 02:27 AM PDT submitted by /u/youngsticker [link] [comments]

Do you get lighter the further underground that you go? Posted: 29 Jun 2016 06:46 AM PDT I figure you'd get lighter the deeper you go underground since you weight more on bigger planets and less on smaller planets and the deeper underground you go the less mass is below you. Additionally there will be more and more mass above you which is going to be pulling you towards it as well. So if the center of the earth were hollow wouldn't you be weightless if you were there? submitted by /u/pard68 [link] [comments]

Modeling a wave(water)? Posted: 29 Jun 2016 06:52 AM PDT Hey, first time poster here. I was wondering if there's an equation that finds the size of a wave when an object(I assume the equation would be based on the surface area that impacts the water, the weight of the object, and the speed) is dropped into a body of water? I also wonder if, in a closed environment, would a wave ever stop? I would think so due to friction with the air and the water, is there an equation to model this? Thanks in advance for any answers :) submitted by /u/Stickman1998 [link] [comments]

In the 'Light Echo' images of the V838 Monocerotis star why are the leading edges blue? Posted: 29 Jun 2016 02:54 AM PDT In this image, the light pulse seems to have blue light reach the outer extremities first, and the red light seems to trail behind. What causes this? submitted by /u/european_impostor [link] [comments]

Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science Posted: 29 Jun 2016 08:05 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Physics, Astronomy, Earth and Planetary 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]

Do gravitational waves lose energy? Posted: 29 Jun 2016 01:09 AM PDT If a gravitational waves change spacetime on there way does this acquire energy and does it therefore vanish after some time? submitted by /u/bokuWaKamida [link] [comments]

What specifically is stopping people from finding an analytical solution to the Navier-Stokes equations under turbulent conditions? Posted: 28 Jun 2016 03:01 PM PDT submitted by /u/lovewillsetmefree [link] [comments]

Can every possible shape (drawn by a graph in a coordinate system) be represented by an equation? If so, how can a shape be turned into an equation? Posted: 28 Jun 2016 11:30 AM PDT submitted by /u/flodt [link] [comments]

I read that since gravity is only attractive, the graviton would have to have a spin of 2. What does odd/even spin have to do with attractive/repulsive forces? Posted: 28 Jun 2016 11:14 AM PDT I understand that the photon has a spin of 1 and is therefore capable of being both attractive and repulsive. But I don't understand how this works. I read somewhere that for even spin, q1q2 > 0 is attractive and q1q2 < 0 is repulsive, while the opposite is true for odd spin. But I honestly have no idea what that means, or why it is that way. I'm an amateur so please dumb it down as much as you can. Thanks for the help. submitted by /u/splice_my_genes [link] [comments]

Do we have any idea of what selective pressures might have acted upon the evolution of spermalege and traumatic copulation in bedbugs? Posted: 29 Jun 2016 03:10 AM PDT In particular, I'm puzzled by the ability of the spermalege to filter out spermatozoa and introducing them into the testes of a male, in the case of homosexual traumatic copulation, as has been observed in Xylocoris maculipennis. Yes, it is a rather fascinating biological mechanism in a garish kind of way, it implies that a specific bedbugs testes may contain some sperm from another one ... call it self-cuckolding if you want ... But I am curious and can't help but wonder: How could this specific biological mechanism which allows less certainty of ones paternity be selected for? submitted by /u/Gargatua13013 [link] [comments]

How fast do I need to drive to keep watching the sunset? Posted: 28 Jun 2016 11:16 PM PDT Say just for an example I'm driving west along the 41st parallel in the USA. The sun just begins to set on the horizon and I want to keep it right where it is, visually. How fast would I need to travel west to keep the sun right where it is? submitted by /u/DPick02 [link] [comments]

What is Angular Momentum how does it work and what the Laws Behind it? Posted: 28 Jun 2016 04:50 PM PDT Also if you have any sporting examples to go with your answer that would be much appreciated. submitted by /u/TexTheManChild [link] [comments]

In movies "going into shock" after an injury is always bad, but isn't it one of the body's defense mechanisms? How could it help? Posted: 28 Jun 2016 09:41 AM PDT submitted by /u/therealqicksilver [link] [comments]

Is it possible to have nonzero acceleration and zero velocity in this example? Posted: 28 Jun 2016 02:13 PM PDT My teacher explained that it is possible to have a non zero acceleration while having zero velocity. I agree. The classic example of throwing a ball upward shows this. But my teacher's example was this. "Imagine you're in your car and you are stopped (velocity=acceleration=0). Now imagine you press the pedal and to floor and you start accelerating. Your acceleration is non zero but your velocity is zero because you are starting from rest." I asked him to repeat because I did not understand him. Again he said the same thing. Can someone clarify this please?? My intuition tells me that my teacher is mistaken. submitted by /u/ragtagCheetah [link] [comments]

Which temperature does an electron beam have? Posted: 28 Jun 2016 11:43 PM PDT I understand that the temperature is determined by the stored energy of the elements / molecules. Since an electron beam is made of accelerated electrons with a speed of two third light speed, and the kinetic energy of the electrons can be used for welding (EB-welding) i would like to know what is the (theoretical?) temperature of the beam. submitted by /u/Madusch [link] [comments]

How does stored body fat get metabolized by the body? Posted: 28 Jun 2016 09:37 AM PDT When you run low on food energy, your body starts to burn excess fat to supply it with the necessary energy, right? What I'd like to know is how this process happens. You have belly fat... does it get absorbed into the bloodstream? Does it get transferred to the stomach? How does all this happen? Forgive my basic interpretations of the human body and its functions, but I just always thought it was a weird, rather unexplained topic. submitted by /u/rastafarian_eggplant [link] [comments]

How much do we really understand about magnetism? Posted: 28 Jun 2016 09:59 AM PDT I took an electronic properties of materials course last semester, and at the end we spent a week talking about magnetic materials. From what I gathered, we have a fairly decent idea of how and why electronics work, but magnetism is much less understood. Is this accurate? submitted by /u/sxeQ [link] [comments]

Why didn't humans evolve to like vegetables and not like very sugary foods? Posted: 28 Jun 2016 11:00 AM PDT If vegetables such as spinach are really good for you, why didn't humans evolve to enjoy those instead of very sugary foods like ice cream and cookies? I get that sugars were good for us because we could build fat, but vegetables contain much healthier components. submitted by /u/jengama22 [link] [comments]

Why do detergents dissolve oils, but not greases? What's special about degreaser that does? Posted: 28 Jun 2016 09:50 AM PDT submitted by /u/antiduh [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