Do sound canceling headphones function as hearing protection in extremely loud environments, such as near jet engines? If not, does the ambient noise 'stack' with the sound cancellation wave and cause more ear damage?

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• Do sound canceling headphones function as hearing protection in extremely loud environments, such as near jet engines? If not, does the ambient noise 'stack' with the sound cancellation wave and cause more ear damage?
• Does understanding the Placebo Effect have an impact on its efficacy?
• Are extra spatial dimensions something we can accurately perceive with a trained mind?
• Why do bags form under your eyes when tired?
• What will be the speed of water waves in water, after a stone (or any body) fell into them?
• Would we see the universe age slower/faster if our galaxy didn't move through space?
• May be a dumb question, but why do some things (like bouncy balls) bounce, while others (like watermelons) explode on impact?
• When two light waves experience destructive interference what happens to the energy? How does the conservation of energy apply here?
• Do all cells in an organism have the same DNA?
• How fast can a bubble float up?
• Would a moon with an ocean have tidal waves generated by its planet? How big would they be?
• Photons have momentum. Do they have direction?
• Do gravitational pull decrease over distance?
• When the area of a cross section of a pipe decreases, the pressure of the air flowing through it increases or decreases?
• What kind of infection determines if we get a fever?
• Is it possible that areas of Mars previously theorized to be formed by basaltic lava flows are in fact formed by water ice?
• How do we distinguish between redshift due to expansion and redshift due to time passed?
• Why are synthetic cannabinoids so much more toxic than cannabinoids found in cannabis?
• What happens when you pop a balloon in middle of the space?
• How do plant's filter out CO2 from the air?
• If you are drunk and a mosquito bites you and you allow it to drink it's fill, will the mosquito become intoxicated?
• Physics: How would daily communication be received on earth when sent from near light speed spacecraft traveling towards another star system?

Do sound canceling headphones function as hearing protection in extremely loud environments, such as near jet engines? If not, does the ambient noise 'stack' with the sound cancellation wave and cause more ear damage? Posted: 24 Dec 2015 08:44 AM PST submitted by GATOR7862 [link] [682 comments]

Does understanding the Placebo Effect have an impact on its efficacy? Posted: 24 Dec 2015 09:07 AM PST submitted by LegendofDragoon [link] [30 comments]

Are extra spatial dimensions something we can accurately perceive with a trained mind? Posted: 24 Dec 2015 10:59 PM PST On that note, it seems the only way to begin to perceive these dimensions is by seeing wireframe shapes in constant rotation. I feel that there is a way to perceive these in our mind with extra mental senses, maybe artificial senses of time/space and seemingly impossibly connected points in space (like how worm holes are theorized in sci Fi movies) that we could conjure in our imaginations with enough focus and mental exercises. Is that how you high level physicists are trained to understand quantum physics and string theory? submitted by TwitchJonjonjonh [link] [4 comments]

Why do bags form under your eyes when tired? Posted: 24 Dec 2015 04:41 PM PST submitted by swiftjsulli [link] [4 comments]

What will be the speed of water waves in water, after a stone (or any body) fell into them? Posted: 24 Dec 2015 06:30 AM PST Is it a constant? If not, what it depends on? submitted by Staviao [link] [5 comments]

Would we see the universe age slower/faster if our galaxy didn't move through space? Posted: 24 Dec 2015 05:36 AM PST Been wondering about this ever since I learned about Time Dilation. I read that our galaxy moves through space at +- 600 km/s. Does that have any influence on how we see the universe progress? submitted by Carpi22 [link] [25 comments]

May be a dumb question, but why do some things (like bouncy balls) bounce, while others (like watermelons) explode on impact? Posted: 24 Dec 2015 02:30 PM PST Was just thinking about this, and realized I don't actually know the answer. I mean, if I were asked, I'd probably guess something like a watermelon is more brittle, but at the same time I also feel like if you filled one of those huge hollow rubber balls with liquid, it would probably explode too, so there must be more to it than just that, right? I'm also not super science-literate, so ELI15-ish where possible? And thanks in advance! submitted by Hamroids [link] [2 comments]

When two light waves experience destructive interference what happens to the energy? How does the conservation of energy apply here? Posted: 24 Dec 2015 11:30 AM PST ^ submitted by Blessedfalcon [link] [2 comments]

Do all cells in an organism have the same DNA? Posted: 24 Dec 2015 03:58 PM PST submitted by ragerlol1 [link] [2 comments]

How fast can a bubble float up? Posted: 24 Dec 2015 12:08 PM PST In water, what's the fastest that an air bubble can float upward? submitted by TangibleLight [link] [1 comment]

Would a moon with an ocean have tidal waves generated by its planet? How big would they be? Posted: 24 Dec 2015 11:43 AM PST submitted by Factknowhow [link] [3 comments]

Photons have momentum. Do they have direction? Posted: 24 Dec 2015 07:34 PM PST submitted by dick_long_wigwam [link] [3 comments]

Do gravitational pull decrease over distance? Posted: 24 Dec 2015 03:59 PM PST If so: - Is it the distance from the center of gravity or the edge of the object? - Why are there a different gravitational pull on different places on the surface of Earth? submitted by Hitlers-left-nut [link] [9 comments]

When the area of a cross section of a pipe decreases, the pressure of the air flowing through it increases or decreases? Posted: 24 Dec 2015 09:45 PM PST According to Bernoulli's theorem, as area of cross section decreases, velocity increases (by continuity eqn.) and pressure decreases (law of conservation of energy - as pressure energy is converted to kinetic energy) But by P=F/A, let's say when the output of a compressor is connected to a tube of cross section X (A-A') the pressure is P1 and in the same line if I decrease the area of cross section to Y at (B-B') the pressure is P2. Now P2 is greater than P1 right? why is that so? http://imgur.com/a/fLsi4 I understand there is someother variable at play. Is it Q ?(flow rate) Also is there relation between Pressure and flow rate? submitted by workethicsFTW [link] [4 comments]

What kind of infection determines if we get a fever? Posted: 24 Dec 2015 11:25 AM PST So obviously a fever is our body fighting off an infection. But what determines whether we get a cold or a fever? Both are reactions to an infection. submitted by Interestingly_Boring [link] [4 comments]

Is it possible that areas of Mars previously theorized to be formed by basaltic lava flows are in fact formed by water ice? Posted: 24 Dec 2015 08:59 AM PST In light of current discoveries of ice buried under the oxidized surface regolith on Mars, such as glaciers in northern and southern latitudes along with a frozen sea to the north in the Arcadia Planitia region, I'd like to know if areas such as the Sacra Fossae region linked below are still thought to be formed by catastrophic flooding from water followed by being filled with lava. How did we determine that this is composed of lava rather than ice that's been covered by dust and dirt over millennia? I know orbiters have a hugely difficult time confirming ice under surface regolith (either MRO's Shallow Radar "SHARAD" or a neutron spectrometer aboard NASA's 2001 Mars Odyssey spacecraft is required to confirm subsurface ice, and even then, only close to the surface) so I can understand how assumptions could be made about the geological composition of these areas that isn't necessarily accurate. The uniform elevation and perimeter erosion of the low lying areas where outwash once flowed from the Echus Chasma region of Mars north to the Sacra Fossae region appear to be a result of aqueous processes followed by freezing. In any given Mars image it's easy to assume that something could be basaltic lava flow, but when using say Google Mars where all the data/images are connected together, the context allows for a much better understanding of the erosional processes that have affected an area and the topography that stretches for thousands of kilometers. If there is basaltic lava involved here, its source is not at all apparent unless it just rose up through ground fissures to conveniently fill the same areas that were previously eroded by aqueous processes. Aerial imagery of lava fields on earth do not resemble these low lying Martian areas either, however ice flows off the Antarctic coast show surface features that share a striking resemblance (only white instead of orange) to what's being seen in the Martian images. Below are two links to images from the Sacra Fossae and Mangala Fossae regions for context. Referencing the topography from the images below against areas of frozen ice sheets off the Antarctic coast makes for a pretty compelling case for water ice. http://www.dlr.de/media/en/Portaldata/8/Resources/portal_news/2009_2/kasei_co.jpg http://www.esa.int/spaceinimages/Images/2008/09/Mangala_Fossae submitted by AresIII [link] [comment]

How do we distinguish between redshift due to expansion and redshift due to time passed? Posted: 24 Dec 2015 04:51 PM PST From my understanding the evidence for hubble's law is the stronger redshift of objects that are further away from us. Assuming uniform deceleration of all objects or expansion wouldn't we expect to see the same thing because of the time it takes light from the further away objects to reach us? submitted by Firzen_ [link] [2 comments]

Why are synthetic cannabinoids so much more toxic than cannabinoids found in cannabis? Posted: 24 Dec 2015 11:39 AM PST submitted by Sky-Jellyfish [link] [7 comments]

What happens when you pop a balloon in middle of the space? Posted: 24 Dec 2015 02:24 PM PST submitted by Hutzor [link] [5 comments]

How do plant's filter out CO2 from the air? Posted: 24 Dec 2015 04:25 PM PST How do plants and other organisms filter out CO2 from the atmosphere? Is there any way we can apply this artificially to other molecule's? submitted by Punishtube [link] [7 comments]

If you are drunk and a mosquito bites you and you allow it to drink it's fill, will the mosquito become intoxicated? Posted: 24 Dec 2015 02:08 PM PST I'm assuming you at pretty drunk here, with a BAC well over the US legal limit. Would the alcohol content of your blood not have a strong effect on such a tiny insect? If so, would it just get "drunk"? submitted by BlueGreenRails [link] [1 comment]

Physics: How would daily communication be received on earth when sent from near light speed spacecraft traveling towards another star system? Posted: 24 Dec 2015 04:04 PM PST Imagine that mankind builds an interstellar spacecraft with a planned destination of a star system approximately 100 light years from earth. During the lengthy voyage a daily log is broadcast back to earth, at noon ship time each day. When the ship is very close to earth, the messages are received nearly instantaneously, but if the ship is accelerating away from earth at 1 g, eventually reaching 95% of c, would the time intervals between message receipts begin to grow, even though the messages are being sent at exactly the same ship time every day? What would that time lapse look like, and how would the intervals between received messages grow? Would we still receive a message every day? Wrapping my head around the idea of near-light speed time dilation is difficult without understanding the math, so a simplified explanation is needed. submitted by Med_sized_Lebowski [link] [1 comment]

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How does our body keep track of time? And how might this effect space travel?

---

• How does our body keep track of time? And how might this effect space travel?
• What would happen if a sun, larger than a black hole, went into the black hole?
• Why are red and purple "next to each other", if they come from different parts of the EM spectrum?
• Since light is also a wave, can you use light to cancel out light as you can do with sound in noise-canceling headphones?
• Why does grated cheese often taste better than a chunk of the same cheese?
• Is there a formula for predicting stable isotopes?
• How do aquatic mammals deal with water in their lungs?
• [Chemistry] How does the viscosity of the proteins affect in a gel electrophoresis?
• Would geomagnetic storms become more common during the transitional period of a geomagnetic reversal?
• How exactly does electronic image stabilization work? Is it using a gyroscope?
• How much power could you generate if you put a water wheel in urinals that when spun generated electricity?
• When someone loses a limb does the body eventually compensate by producing less blood? If so, how long does it take the body to do so and where does the excess blood go?
• Is the possible number of combinations for a 5-digit number(each able to contain 0-9) 99999?
• Are there any major advantages to flapping wings, or are fixed wing aircraft something we have truly improved upon nature? Given advanced enough materials and power supply, could ornithopters theoretically be practical compared to fixed wing and rotor craft?
• Does energy create a gravitational pull?
• Could there be 3 moons in a co-orbital configuration at L3, L4, and L5?
• Why do all stars appear the same color in our night sky?
• Why does water not continue to spread and instead form a puddle?
• Does the ISS and in-space spacecraft have similar white noise that is depicted in sci-fi films?
• If I take a fresh piece of paper (printer paper, tissue or paper towel) and get it wet, the look and feel of the paper has changed - what's happened at the molecular level?
• What percentage of the carbon (via food) comes out as CO2 from our lungs as opposed to as excrement?
• Could We Synthesize a Nonpolar Glass?

How does our body keep track of time? And how might this effect space travel? Posted: 23 Dec 2015 09:00 AM PST Ageing is a bio-chemical process which seems to be unidirectional. How does our body keep track of time? I know that we have an internal clock...but is it synchronized to something external like the sun, or is it something internal like a quartz crystal in a watch? How will this effect our ageing process in space...especially with the whole idea of traveling at the speed of light and coming back to find that everyone else has aged so much and you haven't. If the clock is internal, how does it matter how fast the body is moving. submitted by BooBoo-is-God [link] [308 comments]

What would happen if a sun, larger than a black hole, went into the black hole? Posted: 23 Dec 2015 09:06 AM PST star* not sun... I've been experimenting with black holes in Universe Sandbox ², and found that when a star larger than a black hole gets pulled towards it, it the star just goes through it the black hole and the star doesn't get destroyed. It The star just keeps moving backwards and forwards through the black hole. Surely this can't be how it would actually happen? Thanks in advance :) Edit: By larger, I mean greater size.* Edit 2: Updated text for clarity Edit 3: Thanks for all your answers! submitted by kapit0 [link] [95 comments]

Why are red and purple "next to each other", if they come from different parts of the EM spectrum? Posted: 23 Dec 2015 08:41 AM PST So, we can make colour wheels like this one, and red and purple are next to each other. How can this be so if they are on opposite ends of the visible light part of the EM spectrum? submitted by kwidem [link] [80 comments]

Since light is also a wave, can you use light to cancel out light as you can do with sound in noise-canceling headphones? Posted: 23 Dec 2015 09:30 AM PST submitted by NotGuiltyOfThat [link] [35 comments]

Why does grated cheese often taste better than a chunk of the same cheese? Posted: 23 Dec 2015 10:52 AM PST submitted by davidhbd [link] [30 comments]

Is there a formula for predicting stable isotopes? Posted: 23 Dec 2015 08:51 AM PST I know it's roughly a 1:1 proton:neutron ratio, but I was wondering if there was anything more accurate than that. I plotted a few stable isotopes here, with places where it looks like there should be a stable isotope in red, so now I'm looking for some sort of relationship. Really, I'd just like to know if I'm wasting my time :) submitted by MWVaughn [link] [28 comments]

How do aquatic mammals deal with water in their lungs? Posted: 23 Dec 2015 08:38 AM PST submitted by Lord_Fuzzy [link] [10 comments]

[Chemistry] How does the viscosity of the proteins affect in a gel electrophoresis? Posted: 23 Dec 2015 08:59 AM PST I can't seem to find a good answer. submitted by azisen [link] [16 comments]

Would geomagnetic storms become more common during the transitional period of a geomagnetic reversal? Posted: 23 Dec 2015 08:07 AM PST I've read that a geomagnetic reversal can take millennia to complete, and that Earth's magnetic field would become weaker and more chaotic during the transition. Would this cause geomagnetic storms to become more common and/or more severe? If so, how would this affect our technology? submitted by Sriseru [link] [5 comments]

How exactly does electronic image stabilization work? Is it using a gyroscope? Posted: 23 Dec 2015 07:20 AM PST submitted by wtricht [link] [27 comments]

How much power could you generate if you put a water wheel in urinals that when spun generated electricity? Posted: 23 Dec 2015 08:37 AM PST Every guy wants something to aim at when he pees at a urinal. What if you put a pinwheel that spins when hit by the force of urine and generates electricity? Assuming you placed one at a bathroom at Disneyland to ensure a constant supply. submitted by riptide747 [link] [43 comments]

When someone loses a limb does the body eventually compensate by producing less blood? If so, how long does it take the body to do so and where does the excess blood go? Posted: 23 Dec 2015 11:21 AM PST perhaps a stupid question, but I would imagine with the limb gone your body would require less blood in circulation. submitted by micheck12 [link] [9 comments]

Is the possible number of combinations for a 5-digit number(each able to contain 0-9) 99999? Posted: 24 Dec 2015 12:28 AM PST Sorry for the simple question. But if we have a 5-digit number and each digit can hold a value from 0-9. Then how many possible combinations are there? Also, what formula can you use to get this in other situations of different digits. (If any at all). submitted by Choppedporks01 [link] [13 comments]

Are there any major advantages to flapping wings, or are fixed wing aircraft something we have truly improved upon nature? Given advanced enough materials and power supply, could ornithopters theoretically be practical compared to fixed wing and rotor craft? Posted: 23 Dec 2015 11:37 AM PST submitted by Cyno01 [link] [8 comments]

Does energy create a gravitational pull? Posted: 23 Dec 2015 11:01 PM PST From my intro course on special relativity, we learned that mass and energy are more or less equivalent. Further it is of my understand that the effects of gravity come from mass bending spacetime I would assume if this were the case and energy did bend spacetime, it would have to be a large amount of energy (a conversion rate of c2 is huge after all) for any effects to be felt at all, right? submitted by Dcwahlyo [link] [8 comments]

Could there be 3 moons in a co-orbital configuration at L3, L4, and L5? Posted: 23 Dec 2015 10:49 AM PST I know there can sometimes be dual co-orbital moons, but ive heard that L3 is unstable. Dividing a circle into thirds would put the points at 0/360, 120, and 240 degrees, which seems to match up with the langrangian point locations. Any and all help is welcome, thanks guys submitted by MufnMaestro [link] [7 comments]

Why do all stars appear the same color in our night sky? Posted: 24 Dec 2015 03:03 AM PST submitted by encinitas2252 [link] [10 comments]

Why does water not continue to spread and instead form a puddle? Posted: 24 Dec 2015 02:26 AM PST What is causing the water to stop spreading until it is one atom thick? submitted by -Zasquach- [link] [2 comments]

Does the ISS and in-space spacecraft have similar white noise that is depicted in sci-fi films? Posted: 24 Dec 2015 02:14 AM PST I find "space" white noise in films very soothing and listen to it when working/writing. Is it a simulated engine hum? submitted by g-regular [link] [3 comments]

If I take a fresh piece of paper (printer paper, tissue or paper towel) and get it wet, the look and feel of the paper has changed - what's happened at the molecular level? Posted: 23 Dec 2015 11:07 AM PST ... and is the change irreversible? Edit: damn I didn't word this properly... I meant, when it's been wet, but then dried out, it doesn't return to being like fresh paper. submitted by zwich [link] [5 comments]

What percentage of the carbon (via food) comes out as CO2 from our lungs as opposed to as excrement? Posted: 23 Dec 2015 07:35 PM PST In other words, if you counted the carbon atoms that come into our system, what percentage leaves us as carbon dioxide vs feces vs sweat vs urine, etc? Ballpark. submitted by En_lighten [link] [3 comments]

Could We Synthesize a Nonpolar Glass? Posted: 23 Dec 2015 07:31 PM PST Apologies if this is a stupid question but... I'm aware that the reason we have a meniscus when we add water to a graduated cylinder is that the glass is typically polar/hydrophilic making the water "stick." Now I'm not exactly sure what graduated cylinders are made out of, but I'm assuming some kind of silicon oxide (?) which is definitely polar. I tried researching it myself but wasn't able to dig up much. Would it be possible to create a clear, glass-like (in that it's fairly resistant to acids, etc.) substance that didn't result in a water meniscus? My Chem class last year (11th grade) didn't really cover this at all :/ Thank you! submitted by draazur [link] [comment]

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Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States

Why is glass so loud?

---

• Why is glass so loud?
• Why do my calculator and Wolfram Alpha disagree on a negative number with a fractional exponent?
• Why is this W boson decay possible?
• How powerful would the "Little Boy" atomic bomb have been had all 141 lbs of Uranium-235 undergone fission?
• What is turbulent dissipation and what is the difference between k epsilon and k omega models in Fluid Dyanamics?
• Using two objects moving with different speeds and in opposite directions, we are able to calculate a relative speed depending on the referential. What would happen if the relative speed calculated with two physically feasible speeds was above the speed of light?
• What sorts of problems does asymptotically safe gravity face as a potential quantum gravity solution?
• Why does coffee have oil rings on surface?
• Why is the reflection of a projector green?
• Ask Anything Wednesday - Engineering, Mathematics, Computer Science
• Why is water so hard to find on other planets when it is such a simple compound?
• Why doesn't nuclear fusion violate the Second Law of Thermodynamics?
• Do cold/flu symptoms improve recovery from the viruses?
• How does depression affect the hormonal system?
• How deep into the crust under an ocean would you still find water?
• Regarding faster than light travel and vibrations/sound waves.
• When Lava cools and become rock is it "freezing" in the same way that water turns into ice?

Why is glass so loud? Posted: 22 Dec 2015 11:37 AM PST I dumped a bucket of bigger glass shards into a trashcan (containing more glass), and it was so loud it hurt my ears. Also, my girlfriend fell through a glassdoor (said shards were from the glass door), and it also was extremely loud. Why is that? Why is hitting or breaking glass so loud? Edit: I love to see how everyone is discussing, this really made my day :) Thanks Reddit! submitted by johnm4jc [link] [275 comments]

Why do my calculator and Wolfram Alpha disagree on a negative number with a fractional exponent? Posted: 22 Dec 2015 08:24 AM PST When calculating something like (-2)3/5 my TI calculator gives a (real) value of about -1.515, but when I ask Wolfram Alpha for the same expression it gives an imaginary number, but with the same magnitude as what the calculator gives. Why is there a difference, and is one of them wrong? submitted by vanavv [link] [17 comments]

Why is this W boson decay possible? Posted: 22 Dec 2015 10:01 AM PST My textbook says that W- --> u + anti d is a possible decay. Doesn't this violate the conservation of charge or am I missing something? submitted by ManateeIA [link] [10 comments]

How powerful would the "Little Boy" atomic bomb have been had all 141 lbs of Uranium-235 undergone fission? Posted: 23 Dec 2015 05:07 AM PST According to the Wikipedia article,"The 16 kiloton yield of the Little Boy bomb was ... produced by the fission of no more than 2 pounds (0.91 kg) of uranium-235, out of the 141 pounds (64 kg) in the pit. The remaining 139 pounds (63 kg), 98.5% of the total, contributed nothing to the energy yield." How strong would the explosion have been had all the uranium undergone fission? On a side note, I wasn't sure whether to filter this question by Chemistry or Physics, so I flipped a coin. submitted by SkordilWabramop [link] [2 comments]

What is turbulent dissipation and what is the difference between k epsilon and k omega models in Fluid Dyanamics? Posted: 22 Dec 2015 10:42 AM PST I came across these terms in Ansys ! submitted by captainteague [link] [5 comments]

Using two objects moving with different speeds and in opposite directions, we are able to calculate a relative speed depending on the referential. What would happen if the relative speed calculated with two physically feasible speeds was above the speed of light? Posted: 22 Dec 2015 07:53 AM PST For example, let's imagine two "Super" cars A and B. They both go in opposite directions. They have two "attainable" speed for each car: c/2 [m/s] for car A, and c/2[m/s] + 1[m/s] for car B. What would the passengers of car A see when they encounter car B as they seem like going over the speed of light for their referential? Or am I missing something? Thank you for your answers! submitted by captain3ceps [link] [30 comments]

What sorts of problems does asymptotically safe gravity face as a potential quantum gravity solution? Posted: 22 Dec 2015 10:29 AM PST I've recently read an article by Ethan Siegel over at Forbes (he also blogs at Starts with a Bang) on asymptotically safe gravity as a possible alternative to string theory. I read the author's blog from time to time, and he's described the potential benefits of asymptotically safe gravity, as well as the apparent prediction of a 126 GeV Higgs Boson years ago. My question is, what sorts of challenges does this idea face when it comes to quantum gravity? I feel like the buzz generated by an extremely accurate Higgs prediction, coupled with the ability to avoid adding entities like extra dimensions and supersymmetric particles, would be a huge positive in favor of asymptotically safe gravity. That being said, I do see much written on the subject and I wonder if that might be related to inherent problems or skepticism in relation to the framework. submitted by Pete1187 [link] [14 comments]

Why does coffee have oil rings on surface? Posted: 23 Dec 2015 06:18 AM PST Every time I pour coffee I notice what looks like oil rings on the surface. Why is this? submitted by Lambam88 [link] [2 comments]

Why is the reflection of a projector green? Posted: 22 Dec 2015 07:17 AM PST http://imgur.com/a/iiYPC The first image shows the screen is all white except for black test and a bit of red. The reflection on the floor is green, however. I've seen this in every classroom in my school and it doesn't matter what's being displayed on the screen. What's causing this? Not sure what type of science this is, so I don't know what category to flair. submitted by kevin4789 [link] [6 comments]

Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 23 Dec 2015 07:02 AM PST Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Engineering, Mathematics, Computer Science Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! submitted by AutoModerator [link] [comment]

Why is water so hard to find on other planets when it is such a simple compound? Posted: 23 Dec 2015 03:08 AM PST submitted by DestinyPvEGal [link] [8 comments]

Why doesn't nuclear fusion violate the Second Law of Thermodynamics? Posted: 22 Dec 2015 10:59 PM PST submitted by lobsteranus [link] [6 comments]

Do cold/flu symptoms improve recovery from the viruses? Posted: 22 Dec 2015 04:04 PM PST My understanding is that some of the symptoms (mucous production, fever) are sort of "broad brush" ways that the body attempts to remove infections. If this is the case, how well do any of them actually work in fighting rhinovirus/influenza? submitted by burf [link] [7 comments]

How does depression affect the hormonal system? Posted: 22 Dec 2015 03:01 AM PST Especially the pituitary and adrenals? submitted by rezadril [link] [6 comments]

How deep into the crust under an ocean would you still find water? Posted: 22 Dec 2015 11:51 AM PST Say at the deepest point in the ocean where water meets crust, how deep into the earth would water still be found? submitted by IHateTape [link] [3 comments]

Regarding faster than light travel and vibrations/sound waves. Posted: 22 Dec 2015 09:23 PM PST I am not sure if this is exactly the right place to post this because its all involving theory rather than any concrete fact but, Were a ship traveling at near the speed of light or at the speed of light make sound? Would someone making noise be heard by anyone at all? Would the engines make any sound? If the ship was traveling at the speed where the sound could not travel any faster than the ship but still make sound can the sound stack up and then hit in one massive blast of vibrations when you slow down? If light speed is the fastest anything can go and nothing can go any faster than would the sound made traveling at the speed of light be able to get to someone in front of the sound as you were traveling? Would you only be able to hear the sound behind where it was made since you would at that point travel into the area the sound was at and pass through the sound waves or vibrations? A ship traveling at light speed means the air inside is traveling that fast as well but the sound wave cannot travel at the speed of sound relative to the ship since it is already traveling at the theoretical limit of speed of anything right? Would vibrations travel through materials when traveling at the speed of light? The vibration would then be traveling faster than light in the direction the ship was moving. What would happen to prevent this from happening? Are there any theories on something like this? This may just not even be worth discussing because we just wouldn't have any information on these things though so any answers may jsut be opinions or guesses though huh? submitted by Aerianally [link] [2 comments]

When Lava cools and become rock is it "freezing" in the same way that water turns into ice? Posted: 22 Dec 2015 11:38 AM PST submitted by r3volc [link] [5 comments]

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