AskScience AMA Series: We're NASA scientists studying the role of carbon in our planet's climate. Ask us anything!

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• AskScience AMA Series: We're NASA scientists studying the role of carbon in our planet's climate. Ask us anything!
• What are those "chunky" things around your lips?
• When a photon is "born", is it instantaneously going the speed of light? Or does it have to accelerate to that speed?
• If I'm floating in space and holding a flashlight, does the light coming out of the flashlight propel me away from the direction that I'm shining the it? (pic included)
• Would pulling the carbon out of the air help in the short term?
• How dark is space between solar systems? e.g. Would you be able to see objects in front of you by starlight alone?
• Why are stars different colours?
• If our sun is a 2nd or 3rd generation sun does that mean some of our planets could have been basking under a different sun and been formed billions of years before earth and the inner planets?
• Why do humans sometimes look upwards when trying to think or remember things?
• How did we get this picture of the milkyway galaxy if we are in it when the farthest man-made object is just outside our solar system?
• What is the maximum amount of hours you can spend in the same date?
• How efficient is the heart as a pumping machine?
• Is there an "inverse" of a black hole?
• Is there any such thing as good virus?
• Why haven't targeted cancer therapies radically improved cancer treatment?
• Given their long lifespans, do turtles or bowhead whales get dementia?
• Where does the ray of a gamma-ray burst come from?
• Does the hard cider we made have more or less calories than the non-alcoholic cider it was made from?
• [Computing] why are traces left behind after I delete a file on my computer?
• If a person speaks sign language as their main language, do they subvocalize with their hand muscles?
• What phsyical neural differences cause one to suffer from anxiety?
• How much variation is there in the sun's position in the sky on the same day of the year, from one year to the next?
• In a gaseous system at equilibrium, is the time to re-reach equilibrium after adding more gasses the same, regardless of the concentrations of gasses?

AskScience AMA Series: We're NASA scientists studying the role of carbon in our planet's climate. Ask us anything! Posted: 12 Nov 2015 04:29 AM PST Hi everyone! I am Natassa Romanou, an oceanographer at NASA's Goddard Institute for Space Studies in New York. I work with climate models and observations and I am specifically interested in how oceans change under climate change and conversely, how oceans affect the global carbon cycle and therefore the rate at which Earth's climate is changing. I am also involved in the planning of a very exciting NASA field campaign, EXPORTS, that will investigate the changes in ecosystems and carbon stocks and fluxes in the Atlantic and the Pacific Oceans. Hello all – I am Jeff Masek, a research scientist at NASA Goddard Space Flight Center in Greenbelt Maryland. My scientific focus has been on understanding forest dynamics & their role in the terrestrial carbon cycle using long time series of satellite data. I also serve as the NASA Project Scientist for the Landsat program, which provides much of our global information on land use and land cover changes. Hi everybody on line. I'm David Schimel, a carbon scientist at NASA's Jet Propulsion Lab. I look at how climate affects forest growth and loss using satellite and aircraft measurements an also measurements of carbon dioxide in the atmosphere. I work on NASA's new Orbiting Carbon Observatory-2 mission that is giving us an entirely new way of understanding ecosystems and the carbon cycle. Right now the land and ocean (over time) absorb about half of all CO2 emissions. But it's not yet clear if that will keep up! The upcoming UN climate talks in Paris will focus on levels of human-caused emissions. We are focused on the natural response to rising emissions and how we can learn more about it. We'll be online from 3-4 pm EST today to answer questions about what NASA is doing to better understand how land and ocean ecosystems are responding to a warming planet and rising carbon dioxide levels in the atmosphere — and what these ecosystem changes could mean for future climate change. Ask Us Anything! submitted by NASAEarthRightNow [link] [151 comments]

What are those "chunky" things around your lips? Posted: 11 Nov 2015 03:51 PM PST If you kinda bite down below bottom your lip you'll feel a buncha little tapioca-like things. What are they? submitted by brutang [link] [180 comments]

When a photon is "born", is it instantaneously going the speed of light? Or does it have to accelerate to that speed? Posted: 11 Nov 2015 10:46 AM PST submitted by Hopeful_Swine [link] [84 comments]

If I'm floating in space and holding a flashlight, does the light coming out of the flashlight propel me away from the direction that I'm shining the it? (pic included) Posted: 11 Nov 2015 05:20 PM PST MSPaint representation of what I'm trying to ask. Do the photons coming from the flashlight actually exert force on me? I guess that's my real question. submitted by Passwordwascooch [link] [39 comments]

Would pulling the carbon out of the air help in the short term? Posted: 12 Nov 2015 04:44 AM PST I have seen some projects recently that go well beyond trying to stop new carbon from entering the atmosphere and actually filter existing carbon out of the atmosphere. Supposing we pulled all of the excess carbon from the air in the next year, would that stop the processes of climate change, or are they already too far underway for this to help in the short term (next couple of decades) submitted by 4evrwrong [link] [8 comments]

How dark is space between solar systems? e.g. Would you be able to see objects in front of you by starlight alone? Posted: 11 Nov 2015 04:04 PM PST submitted by raceover [link] [31 comments]

Why are stars different colours? Posted: 12 Nov 2015 01:31 AM PST submitted by Fridtjof_Agnalt [link] [5 comments]

If our sun is a 2nd or 3rd generation sun does that mean some of our planets could have been basking under a different sun and been formed billions of years before earth and the inner planets? Posted: 11 Nov 2015 07:57 PM PST just wondering eris, pluto maybe even jupiter are far enough out to survive a supernova yes? what's to say they were not formed in the first incarnation of the sol system submitted by Feltchair [link] [2 comments]

Why do humans sometimes look upwards when trying to think or remember things? Posted: 11 Nov 2015 03:29 PM PST submitted by ActionKbob [link] [6 comments]

How did we get this picture of the milkyway galaxy if we are in it when the farthest man-made object is just outside our solar system? Posted: 11 Nov 2015 10:53 PM PST As far as I'm aware the farthest man-made object in space, Voyager 1, is just outside our solar system. How did we manage to get this picture? http://wallpaper.pickywallpapers.com/2560x1440/the-milky-way.jpg submitted by Apple_pie_for_me_ple [link] [4 comments]

What is the maximum amount of hours you can spend in the same date? Posted: 11 Nov 2015 02:28 PM PST If you could travel fast enough. What is the maximum amount of hours one could spend on a specific date? Say i went 24 hours in one time zone, then had the speed to go to the edge of the next on and repeat as many times as possible to stay in today. submitted by Retsamel [link] [22 comments]

How efficient is the heart as a pumping machine? Posted: 11 Nov 2015 01:26 PM PST If you compare the heart to a motorised water pump how does it compare in terms of volume of liquid pumped compared to it's size and also in terms of energy consumption? submitted by henrymcp [link] [2 comments]

Is there an "inverse" of a black hole? Posted: 11 Nov 2015 01:24 PM PST If a normal black hole has a gravitational pull so strong nothing can escape, could there be an inverse construct that has a repulsive force so strong nothing could approach? submitted by SillyFlyGuy [link] [8 comments]

Is there any such thing as good virus? Posted: 11 Nov 2015 04:10 PM PST I know we can genetically modify bacteria to become useful and I'm wondering if there's any chance of doing the same thing a virus. If there is, what are the hypothetical applications it can have? And no, i'm not talking about vaccines here. submitted by OP_aque [link] [10 comments]

Why haven't targeted cancer therapies radically improved cancer treatment? Posted: 11 Nov 2015 02:52 PM PST I did an undergrad in biomedicine and engineering and one of the topics which came up a lot was how nanotech/genetics was helping create much more directed cancer therapeutics, with the aim to minimise unintended damage to healthy tissue. I've also seen numerous papers which highlight how this group's and that group's specific new method for targeting cells is shown to be highly effective. My question is.. after all this research how come we aren't hearing about dramatic improvements in prognoses in the general public? I sympathise that every cancer is different and the molecular markers which need to be targeted will differ from cancer to cancer. However, if we have the tools and the know-how, and it has been proven to work, then adapting it to at least the most common forms of tumour shouldn't be too difficult. I may well be wrong, but it appears from the outside that chemo and radiotherapy are still the staple courses of action for most inoperable cancers. submitted by cal_lamont [link] [6 comments]

Given their long lifespans, do turtles or bowhead whales get dementia? Posted: 10 Nov 2015 06:46 AM PST submitted by epanchin [link] [128 comments]

Where does the ray of a gamma-ray burst come from? Posted: 11 Nov 2015 12:47 PM PST I understand that a GRB is created as rotating matter falls into a newly forming black hole, but why would this process create a beam along the axis of rotation? submitted by AxelBoldt [link] [4 comments]

Does the hard cider we made have more or less calories than the non-alcoholic cider it was made from? Posted: 11 Nov 2015 05:11 PM PST We added yeast to non-alcoholic apple cider to make hard cider, and are now debating if this has more/less/the same calories as before. I say more because alcohol metabolizes into sugar which adds more calories, and he says less because the yeast would have to use some energy to metabolize the sugar. submitted by pungen [link] [4 comments]

[Computing] why are traces left behind after I delete a file on my computer? Posted: 11 Nov 2015 09:05 AM PST I've read that files are never really deleted from computers, and that with the right software almost anything can be recovered. I have a very basic understanding of how file deletion work (afaik it just writes special data over the file, that somehow makes it much smaller) but that doesn't explain why this happens. Is it the same for a platter hdd as it is for a ssd? Is it something happening on the physical level that makes it impossible? Or is it purely software related? submitted by acetominaphin [link] [44 comments]

If a person speaks sign language as their main language, do they subvocalize with their hand muscles? Posted: 11 Nov 2015 12:03 PM PST submitted by Hrtzy [link] [1 comment]

What phsyical neural differences cause one to suffer from anxiety? Posted: 11 Nov 2015 11:32 AM PST Are there any physical differences in the brain structure? submitted by ShafiChowdhury [link] [4 comments]

How much variation is there in the sun's position in the sky on the same day of the year, from one year to the next? Posted: 11 Nov 2015 07:24 AM PST Given things like Stonehenge and this monument, I am wondering how much variation there is in the sun's position in the sky over the years, assuming we're plotting it at the same time on the same day of the year. I'd expect our orbit to wobble enough over time to make these things get out of alignment. submitted by efficiens [link] [3 comments]

In a gaseous system at equilibrium, is the time to re-reach equilibrium after adding more gasses the same, regardless of the concentrations of gasses? Posted: 11 Nov 2015 12:35 PM PST An example reaction: aA + bB <- -> cC + dD I was taught that, from the initial state of the system ( assuming it isn't at equilibrium), the system will eventually reach equilibrium after t seconds. After shifting the balance by any amount, such as adding 1 or 2 or 10 moles of gas A, it will take the same t seconds for the system to reach equilibrium again. I was taught that temperature and catalysts can affect t, but the concentrations of gasses cannot. This intuitively doesn't make sense to me. Assuming a starting amount of 10 moles each gasses A and B, and 0 moles C and D, it will take t1 seconds to reach equilibrium. At some point, after an amount of time t2 < t1 , the system will have not yet reached equilibrium, and will do so in ( t1 - t2 ) seconds. If, after reaching equilibrium, we alter the concentrations (by adding and removing gasses) to make them identical to the system after t2 seconds, my teacher claims it will take t1 seconds to reach a new equilibrium, but it seems like it should be ( t1 - t2 ) after this change. I can't find any material on this anywhere on the internet, and my teacher stated they cannot explain this, but it is a fact. submitted by GasEquilibriumTime [link] [3 comments]

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AskScience AMA Series: Hi, I’m Dr. Victoria Hsiao, an endocrinologist at the University of Rochester Medical Center in Rochester, N.Y. Let’s talk about how to survive the holidays when you have diabetes. AMA!

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• AskScience AMA Series: Hi, I’m Dr. Victoria Hsiao, an endocrinologist at the University of Rochester Medical Center in Rochester, N.Y. Let’s talk about how to survive the holidays when you have diabetes. AMA!
• Why Delta-V and not Acceleration?
• If different instruments all play the same note, what makes them sound so different?
• Is there any way we know of to decompose sulfur dioxide into sulfur and oxygen?
• Why do some drugs work better when consumed with solid food?
• Why is wood ash so basic?
• Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology
• During allergic reactions, what does injecting epinephrine do that the body's natural adrenaline can't?
• If the amount of CO2 in the atmosphere was instantly cut in half, (we don't want to kill the plants) how immediately would the effects on global warming been noticed?
• Why do windmills have such skinny blades?
• Why don't electrons crash into the nucleus?
• Looking back to the interstellar applications of the Orion nuclear propulsion system. Am I understanding correctly that this craft would have decelerated by flipping 180° and sequentially ploughing through self-generated fireballs as it detonated it's payload ahead of itself???
• How does a server know my bandwidth when I'm downloading a file? i.e. how does it know how much data to send at a time?
• In a few hundred million years or so when the sun is supposed to grow to be a giant and consume Earth, why is it going to get hotter? Shouldn't it get cooler because it's expanding and dying?
• Does notation exist for it possible to "write" any real number?
• How seriously should we be taking "sleep cycles" on an individual level?
• What happend to the Enigma Machine?

AskScience AMA Series: Hi, I’m Dr. Victoria Hsiao, an endocrinologist at the University of Rochester Medical Center in Rochester, N.Y. Let’s talk about how to survive the holidays when you have diabetes. AMA! Posted: 11 Nov 2015 04:20 AM PST Hi, I'm Dr. Victoria Hsiao, a diabetes specialist and health outcomes researcher at the University of Rochester Medical Center in Rochester, N.Y. The holidays are quickly approaching and that means everyone is munching on cookies, rich desserts, dips and snack trays in the office and at parties. This "season of eating" is a serious challenge for diabetics. I work with my patients to manage glucose with diet and exercise, weight management, carb counting and insulin pumps. I can answer questions about these and other strategies to cope with diabetes as the holidays approach. I'll start answering questions at 2:30 p.m. EST. Go ahead, AMA! submitted by Dr_Victoria_Hsiao [link] [109 comments]

Why Delta-V and not Acceleration? Posted: 10 Nov 2015 10:34 PM PST I hear the term Delta-V from rocket scientists a lot. If I recall from my University Physics 101 course, the change in velocity with respect to the change in time is called Acceleration. So why does the Rocket Science Community use the term Delta-V instead of just saying Acceleration? Or do I fundamentally misunderstand? What is the difference between Delta-V and Acceleration? submitted by Joeclu [link] [10 comments]

If different instruments all play the same note, what makes them sound so different? Posted: 11 Nov 2015 05:16 AM PST Eg, I play the same note in the same octave on piano and ukulele. They're obviously the same tone, but why do they sound so different? submitted by Dreadsin [link] [4 comments]

Is there any way we know of to decompose sulfur dioxide into sulfur and oxygen? Posted: 11 Nov 2015 06:52 AM PST I've seriously googled this and still found nothing. submitted by PosterusKirito [link] [comment]

Why do some drugs work better when consumed with solid food? Posted: 10 Nov 2015 09:41 PM PST submitted by bouldersky [link] [1 comment]

Why is wood ash so basic? Posted: 10 Nov 2015 10:13 PM PST I'm venturing into soap making and composting - and I keep running into the fact that wood ash is very basic. Why? Shouldn't the burnt remains of wood be primarily (neutral) carbon? submitted by GreensburgZombie [link] [3 comments]

Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology Posted: 11 Nov 2015 07:02 AM PST Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Economics, Political Science, Linguistics, Anthropology Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! submitted by AutoModerator [link] [comment]

During allergic reactions, what does injecting epinephrine do that the body's natural adrenaline can't? Posted: 10 Nov 2015 09:21 PM PST I have always been under the impression that epinephrine and adrenaline are the same thing... It seems like having a severe allergic reaction would definitely already get your adrenaline pumping, so how is injecting epinephrine helpful? Is it simply that your body doesn't produce enough to counteract the effects of the allergy and the shot gives you an extra boost of it, or does injecting epinephrine somehow have a different physiological effect than your body naturally producing adrenaline does? submitted by ValyrianJedi [link] [5 comments]

If the amount of CO2 in the atmosphere was instantly cut in half, (we don't want to kill the plants) how immediately would the effects on global warming been noticed? Posted: 11 Nov 2015 04:43 AM PST submitted by dafragsta [link] [9 comments]

Why do windmills have such skinny blades? Posted: 10 Nov 2015 07:00 PM PST Most of the modern windmills I see have three long, thin blades. My intuition(probably incorrect) is that blades with a greater surface area would be influenced by more wind, and therefore could generate more power. So why are thin blades used in modern windmill designs? submitted by nickmerl [link] [13 comments]

Why don't electrons crash into the nucleus? Posted: 10 Nov 2015 05:41 PM PST Usually people use the uncertainty principle to answer this question, but I don't understand how that explains the entire picture. What happens to the attractive force between the electron and the protons? Does HUP create some kind of repulsive force? How does angular momentum play into all this? submitted by BainCapitalist [link] [6 comments]

Looking back to the interstellar applications of the Orion nuclear propulsion system. Am I understanding correctly that this craft would have decelerated by flipping 180° and sequentially ploughing through self-generated fireballs as it detonated it's payload ahead of itself??? Posted: 10 Nov 2015 03:29 PM PST I know, it was never built, and yes, I'm referring to the 1950's design (see: https://en.wikipedia.org/wiki/Project_Orion_%28nuclear_propulsion%29#Interstellar_missions) but: What kind of materials would be able to withstand the kind temperatures and stresses involved? What was the plan to decelerate? The was I see it (and please clarify if I'm wrong), the craft would have had to flip around and reverse-thrust it's way towards destination, a bit like the Apollo systems used to do. This would imply having the craft sequentially passing through the fireballs of several nuclear explosions as it detonated those bombs ahead of itself during deceleration. I'm trying to wrap my mind around the implications of this concept (More precisely: what's left of my mind after it was blown away). By 2015 standards, is this design still realistic? If so how would be adapt it? submitted by Gargatua13013 [link] [10 comments]

How does a server know my bandwidth when I'm downloading a file? i.e. how does it know how much data to send at a time? Posted: 10 Nov 2015 06:59 PM PST submitted by purenitrogen [link] [2 comments]

In a few hundred million years or so when the sun is supposed to grow to be a giant and consume Earth, why is it going to get hotter? Shouldn't it get cooler because it's expanding and dying? Posted: 10 Nov 2015 06:47 PM PST submitted by Hipp013 [link] [2 comments]

Does notation exist for it possible to "write" any real number? Posted: 10 Nov 2015 11:23 AM PST I was just thinking earlier, we can write some transcendental numbers like e or pi with a finite number of elements, unlike it's decimal expansion. Is it possible to write any real number as say a combination of any of today's notation we use today? submitted by ayylmaoxXxXx [link] [13 comments]

How seriously should we be taking "sleep cycles" on an individual level? Posted: 10 Nov 2015 08:02 AM PST I was originally going to ask if the "sleep cycle" is nonsense, but reading through some previous posts on this sub I've found that it seems genuinely accepted that sleep cycles and the circadian rhythm matters. (Recent example.) What I would like to know is how much? Has any research been done to quantify the actual result on energy levels or general health or life spans or anything concrete? submitted by wordsicle [link] [7 comments]

What happend to the Enigma Machine? Posted: 10 Nov 2015 09:29 AM PST In school we are currently doing a short unit on Turing and how he decrypted the Enigma machine. I was wondering if there was anything which improved upon the designs of the Enigma machine? Or something that became the "spiritual" child of the enigma machine during the korean/Vietnam time period in order for the super powers to protect their secret messages/orders? I've tried to do some searching myselfand have found nothing. My history teacher is drawing a blank as well. So I was wondering if any of you knew anything? submitted by baaabuuu [link] [20 comments]

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Since mealworms eat styrofoam, can they realistically be used in recycling?

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• Since mealworms eat styrofoam, can they realistically be used in recycling?
• What does the electron flow look like for a radio antenna?
• How is glass made, which is a mirror from one side, and a window from the other?
• When I shift my focus between the image on the TV and the reflection of the window behind me is that happening in my eyes or in my brain?
• Is the Montreal plan to dump sewage into the St-Lawrence river actually that bad for the environment or is opposition to it just people trying to get environmental brownie points?
• Given their long lifespans, do turtles or bowhead whales get dementia?
• If human-created GHG are causing global warming, how come we don’t see any ozone holes over the biggest polluting industrial centers like China, North America, Europe?
• How does cerebral hypoxia cause euphoria?
• What makes cat reflexes so fast? How does it differ from that of a human?
• Why is e.coli so dangerous? I thought it was sort of everywhere since it's in our gut.
• When a video game runs at 60 frames per second, does that mean only the display shows what happens every 60th of a second, or does the game have markers that take inputs and produce outputs only at those times too?
• If I make low-purity polycrystalline diamond, will I still get thermal conductivity that is far above copper?
• Won't a bubble be perfectly round?
• If i had a bowling ball in the middle of outer space. Could a m&m orbit around it?
• Are men more likely to have seizures?
• How is time "defined" in the very early universe?
• When I get a cold, how much of the symptoms/misery are caused by the illness itself and how much are caused by my body's reactions to the illness?
• Why do we loose appetite when we're sick?
• What are some good data analysis programs?
• How can Fluorine have the greatest electronegativity and not have the greatest (or most negative) electron affinity?

Since mealworms eat styrofoam, can they realistically be used in recycling? Posted: 09 Nov 2015 08:10 PM PST Stanford released a study that found that 100 mealworms can eat a pill sized (or about 35 mg) amount of styrofoam each day. They can live solely off this and they excrete CO2 and a fully biodegradable waste. What would be needed to implement this method into large scale waste management? Is this feasible? Here's the link to the original article from Stanford: https://news.stanford.edu/pr/2015/pr-worms-digest-plastics-092915.html submitted by Jctiews [link] [172 comments]

What does the electron flow look like for a radio antenna? Posted: 10 Nov 2015 06:34 AM PST I'm having trouble visualizing how antenna's actually work in a circuit. They are connected to a circuit, but only on one end. So how do the electrons flow? If they were flowing through the antenna, wouldn't it basically be a Tesla coil? submitted by 55555 [link] [11 comments]

How is glass made, which is a mirror from one side, and a window from the other? Posted: 10 Nov 2015 03:19 AM PST submitted by YapasWD [link] [7 comments]

When I shift my focus between the image on the TV and the reflection of the window behind me is that happening in my eyes or in my brain? Posted: 10 Nov 2015 06:54 AM PST Also, what about when I look out a window and adjust my focus from my reflection to things outside -- this I would imagine is done by my eyes as it's a different depth of focus -- but on the TV both images are the same distance away. Cheers. *edit: spelling submitted by LCranstonKnows [link] [2 comments]

Is the Montreal plan to dump sewage into the St-Lawrence river actually that bad for the environment or is opposition to it just people trying to get environmental brownie points? Posted: 10 Nov 2015 05:39 AM PST Link to article in case people aren't sure what I'm talking about submitted by kwizzle [link] [3 comments]

Given their long lifespans, do turtles or bowhead whales get dementia? Posted: 10 Nov 2015 06:46 AM PST submitted by epanchin [link] [comment]

If human-created GHG are causing global warming, how come we don’t see any ozone holes over the biggest polluting industrial centers like China, North America, Europe? Posted: 10 Nov 2015 05:29 AM PST submitted by blame_stamos [link] [2 comments]

How does cerebral hypoxia cause euphoria? Posted: 10 Nov 2015 06:47 AM PST submitted by Wesley_Stephenson [link] [comment]

What makes cat reflexes so fast? How does it differ from that of a human? Posted: 10 Nov 2015 05:09 AM PST This question has been bugging me for a while now. Are cats built physically different, allowing for them to both react and move with lightning fast speed, or are humans just slow? submitted by W0LFSTEN [link] [comment]

Why is e.coli so dangerous? I thought it was sort of everywhere since it's in our gut. Posted: 10 Nov 2015 06:18 AM PST Recently read of a kindergarten where several children were two kids were sent to the hospital because of e.coli. But, isn't gut bacteria everywhere already? How can some e.coli be more dangerous than other? submitted by pearlmuter [link] [comment]

When a video game runs at 60 frames per second, does that mean only the display shows what happens every 60th of a second, or does the game have markers that take inputs and produce outputs only at those times too? Posted: 10 Nov 2015 06:05 AM PST For example, I know that the CPU that's processing everything can make a cycle every couple billionths of a second, and all though it would take a lot of them to produce a result, taking an input and sending it to the game should be very fast, and be able to happen in between frames, right? So for instance say there's a certain game that runs 60 fps, where the simple objective is to press a button before your opponent. If you press it after exactly 101 ms, and your opponent presses it after 115 ms, since the next "marker" for the game would happen at 116.6 ms, would this produce a tie, or would you win? I would imagine that the CPU could tell you pressed it first, but when working with emulators and such, everything is cut into individual frames. submitted by rileyrulesu [link] [comment]

If I make low-purity polycrystalline diamond, will I still get thermal conductivity that is far above copper? Posted: 09 Nov 2015 07:42 PM PST I want to make a lot of polycrystalline diamond. I mean A LOT (imagine 2 square yards). Buying that in the open market will cost you a cool $800 million (I'm not kidding, look it up). But... I only want thermal conductivity that's above copper, and not the hyper-pure stuff that most professionals want. So... if I make some hillbilly, low-purity PCD, will I still get my high thermal conductivity material? submitted by inderjalli [link] [2 comments]

Won't a bubble be perfectly round? Posted: 09 Nov 2015 08:18 PM PST I watched an episode on the "roundest object in the world", a silicon ball. Won't the equal pressure of the gas in a soap bubble make it perfectly round? submitted by inter_fectorem [link] [9 comments]

If i had a bowling ball in the middle of outer space. Could a m&m orbit around it? Posted: 09 Nov 2015 06:09 PM PST What size ball would you need to get something like an m&m to orbit around it? submitted by djamp42 [link] [4 comments]

Are men more likely to have seizures? Posted: 09 Nov 2015 05:34 PM PST I've heard this a lot lately. If so, why? submitted by Mafumofu [link] [comment]

How is time "defined" in the very early universe? Posted: 09 Nov 2015 02:29 PM PST How are the numbers for the duration of the Planck-, the Grand unification-, and the Electroweak-Epoch obtained? And how is time even defined in this context? submitted by 4Spinor [link] [4 comments]

When I get a cold, how much of the symptoms/misery are caused by the illness itself and how much are caused by my body's reactions to the illness? Posted: 09 Nov 2015 02:02 PM PST submitted by stupidrobots [link] [8 comments]

Why do we loose appetite when we're sick? Posted: 10 Nov 2015 06:12 AM PST With many illnesses you get a lower appetite, why is that. I would think you need extra energy when your sick. submitted by jagr2808 [link] [comment]

What are some good data analysis programs? Posted: 09 Nov 2015 09:43 AM PST I'm an undergrad in a chemistry laboratory and I'm looking for a program (preferably free) to graph a few thousand data points and fit multiple trendlines to the graph, like this. I'd need to be able to add my own trendlines with set slopes, etc, and also fit trendlines to data. Excel doesn't cut it and is near impossible to use for my purposes. If this isn't in the right subreddit, please point me in the right direction. Also, not sure what to tag this as, but computing seems like the best fit. submitted by LavastormSW [link] [27 comments]

How can Fluorine have the greatest electronegativity and not have the greatest (or most negative) electron affinity? Posted: 09 Nov 2015 03:37 PM PST submitted by Mchatas [link] [2 comments]

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