Why is a frozen and thawed banana so much sweeter, and how does this change its nutritional value?

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• Why is a frozen and thawed banana so much sweeter, and how does this change its nutritional value?
• Why do obligate carnivores like cats not have severe problems with constipation, despite eating no fibery plants?
• Is it possible to still manufacture "low-background" steel as used for science?
• Is there a theoretical maximum size limit for a star?
• When and how was it first discovered that brains think?
• How/why do snowflakes form geometrically?
• How does one determine how much water can be absorbed by different compositions of the ground?
• How much oxygen can fish take in while out of the water?
• Can computers be inoculated against malware?
• When someone dies, what happens to the gas buildup in their stomach? Does it come out like a deathly fart or do the undertakers puncture or remove the stomach/intestines to stop this from happening?
• Why do clouds appear flat on the bottom?
• The Quantum Chromodynamic Gauge Invariant Lagrangian?
• How do humans receive vitamin D from the Sun? Can our skin "absorb" anything else that is beneficial to us?
• How do AC Induction Motors Work?
• Why are fourier transforms based on sinusoidal functions?
• [Physics] What caused the accident at the fukushima nuclear power plant?
• When you cut a loaf of bread, what happens to the chemical bonds at the site of the cut?
• How are steel construction building beams allowed to get rusty and remain exposed to wet weather? Wouldn't that compromise their integrity?
• Why aren't stealth fighter jets harder to visibly see than non-stealth fighter jets?

Why is a frozen and thawed banana so much sweeter, and how does this change its nutritional value? Posted: 18 Jun 2017 08:28 PM PDT submitted by /u/daveberzack [link] [comments]

Why do obligate carnivores like cats not have severe problems with constipation, despite eating no fibery plants? Posted: 18 Jun 2017 08:42 PM PDT What do they have that we humans dont? submitted by /u/Aerowulf9 [link] [comments]

Is it possible to still manufacture "low-background" steel as used for science? Posted: 18 Jun 2017 03:37 PM PDT from the TIL today. I know that steel manufactured before 1940 is especially rare and expensive due to contamination from the atomic testing. but some day that may/will run out could an alternative still be manufactured ? submitted by /u/electronicat [link] [comments]

Is there a theoretical maximum size limit for a star? Posted: 19 Jun 2017 07:43 AM PDT submitted by /u/catch22milo [link] [comments]

When and how was it first discovered that brains think? Posted: 18 Jun 2017 04:57 PM PDT I'm curious, because it seems to me that it's not an obvious thing to discover. Unlike many other organs inside the body, the brain doesn't really look like it's doing anything. So how was its function discovered? submitted by /u/moe_overdose [link] [comments]

How/why do snowflakes form geometrically? Posted: 18 Jun 2017 06:56 PM PDT submitted by /u/biddyboi [link] [comments]

How does one determine how much water can be absorbed by different compositions of the ground? Posted: 18 Jun 2017 08:29 PM PDT Such as how much water can soil vs sand absorb, and how do we determine this? Say you have a patch of desert and water steadily dripping at a constant rate. How much of the ground would the water penetrate, get soaked up essentially, and at what radius? Additionally, how long would it take to convert the sand to soil? submitted by /u/Xenjael [link] [comments]

How much oxygen can fish take in while out of the water? Posted: 19 Jun 2017 07:52 AM PDT So obviously fish die when out of the water for long periods of time. Their gills collapse reducing the surface area. However surely they should still be able to take on oxygen from the air, albeit at a massively reduced rate? submitted by /u/kcon1 [link] [comments]

Can computers be inoculated against malware? Posted: 19 Jun 2017 07:40 AM PDT My, very limited, understanding of randomware is that your files are encrypted with a key you don't know. If you could preserve a single file on say a partition that could not be over written and you knew the exact location of an identical file that was over written could the two files be used as Rosetta Stone to decrypt the whole computer? Would this work and if not why? submitted by /u/rab-byte [link] [comments]

When someone dies, what happens to the gas buildup in their stomach? Does it come out like a deathly fart or do the undertakers puncture or remove the stomach/intestines to stop this from happening? Posted: 19 Jun 2017 07:35 AM PDT submitted by /u/ihatefuckingwork [link] [comments]

Why do clouds appear flat on the bottom? Posted: 18 Jun 2017 07:15 PM PDT Why is it that clouds appear flat on the bottom, and for lack of a better term "fluffy" on top? submitted by /u/GoHawks1987 [link] [comments]

The Quantum Chromodynamic Gauge Invariant Lagrangian? Posted: 18 Jun 2017 05:35 PM PDT Because of this shitty automod taking down my post every fucking time I try to post it, would one describe the topic "As if I were a youth of at least 1,826 days on this Earth" please? It's Wikipedia entry is Latin to me, which is to say I don't know how to read Latin. submitted by /u/Dragonsword [link] [comments]

How do humans receive vitamin D from the Sun? Can our skin "absorb" anything else that is beneficial to us? Posted: 18 Jun 2017 08:25 PM PDT submitted by /u/Aerukai [link] [comments]

How do AC Induction Motors Work? Posted: 18 Jun 2017 06:07 PM PDT submitted by /u/boomshakalaka206 [link] [comments]

Why are fourier transforms based on sinusoidal functions? Posted: 18 Jun 2017 08:56 PM PDT submitted by /u/ligga4nife [link] [comments]

[Physics] What caused the accident at the fukushima nuclear power plant? Posted: 19 Jun 2017 04:27 AM PDT I was just wondering since there was such a brilliant explanation over at the chernobyl thread. Was the cause of the accident similar to chernobyl(human error)? submitted by /u/wadonki [link] [comments]

When you cut a loaf of bread, what happens to the chemical bonds at the site of the cut? Posted: 18 Jun 2017 06:19 PM PDT submitted by /u/the_quassitworsh [link] [comments]

How are steel construction building beams allowed to get rusty and remain exposed to wet weather? Wouldn't that compromise their integrity? Posted: 18 Jun 2017 02:37 PM PDT submitted by /u/ArmedShadowfox [link] [comments]

Why aren't stealth fighter jets harder to visibly see than non-stealth fighter jets? Posted: 19 Jun 2017 01:46 AM PDT Jets like the F-22 and F-35 are designed to reflect and deflect radar waves away from the original source, so that minimal energy is returned to said source. So why doesn't this happen for light waves? If you had the source of light (the sun) directly behind you and were trying to view the aircraft, it would still look the same, right? submitted by /u/flightmaster [link] [comments]

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The existence of heavy elements on Earth implies our Solar System is from a star able to fuse them. What happened to all that mass when it went Supernova, given our Sun can only fuse light elements?

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• The existence of heavy elements on Earth implies our Solar System is from a star able to fuse them. What happened to all that mass when it went Supernova, given our Sun can only fuse light elements?
• How do developers of programs like firefox process crash reports?
• Why do rapidly flashing lights / rapidly changing images cause epileptic seizures?
• When I "see heat waves" rising from a hot, dry street, what is it that I'm actually seeing?
• Besides the Turing Test, is there any other checkbox that must get ticked before we can say we invented true artificial intelligence?
• Why does a reactor meltdown, such as with Chernobyl, create a much longer lasting exclusion zone than a nuclear warhead detonation site?
• When things like bridges enter a harmonic frequency where does all the energy come from?
• Are there any robust ways to measure large distances (100 meters) between objects to a subatomic level of accuracy?
• How dark is outer space?
• How many times can a piece of plastic be recycled?
• What happens to compounds when a radioactive isotope decays?
• When burning liquid oxygen, what temperature is the flame?
• What would have happened if the solar storm of 2012 directly hit the Earth?
• What are the ramifications of a severed transatlantic cable for an average person?
• Why are many computer parts built around multiples of 8?
• Why is a beam of high speed electrons required to produce x-rays?
• If an object is infinitely falling in a vacuum will it be constantly accelerating? Would it be able to reach the speed of light?
• Why does aloe help with sunburn?
• Why are some new roads built out of concrete, while others are made of asphalt?
• Does centrifugal force exist or are people using a made up [but commonly accepted] term to describe inertia?
• How do we shield against Gamma Rays?
• Is there any evidence that honey bees have another metamorphosis phase that we're unaware of?
• Is "intergalactic space" a different temperature from normal space?

The existence of heavy elements on Earth implies our Solar System is from a star able to fuse them. What happened to all that mass when it went Supernova, given our Sun can only fuse light elements? Posted: 18 Jun 2017 05:09 AM PDT submitted by /u/DoctorKynes [link] [comments]

How do developers of programs like firefox process crash reports? Posted: 18 Jun 2017 05:08 AM PDT They probably get thousands of automatically generated crash reports every day do they process each of them manually, is there a technique to evaluate them automatically or do they just dump most of them? submitted by /u/KippieDaoud [link] [comments]

Why do rapidly flashing lights / rapidly changing images cause epileptic seizures? Posted: 17 Jun 2017 10:24 PM PDT Nothing really to add here, just the question in the post. submitted by /u/No_name_Johnson [link] [comments]

When I "see heat waves" rising from a hot, dry street, what is it that I'm actually seeing? Posted: 17 Jun 2017 11:50 PM PDT submitted by /u/gh282016 [link] [comments]

Besides the Turing Test, is there any other checkbox that must get ticked before we can say we invented true artificial intelligence? Posted: 18 Jun 2017 02:54 AM PDT submitted by /u/BlueAdmiral [link] [comments]

Why does a reactor meltdown, such as with Chernobyl, create a much longer lasting exclusion zone than a nuclear warhead detonation site? Posted: 17 Jun 2017 06:52 PM PDT submitted by /u/AmadeusV2 [link] [comments]

When things like bridges enter a harmonic frequency where does all the energy come from? Posted: 17 Jun 2017 09:11 PM PDT An example video: https://www.youtube.com/watch?v=j-zczJXSxnw Where is all this energy stored? It seems like such a massive amount to move a bridge I don't understand how it's possible. Does it come from the earth? The wind? submitted by /u/mrtwoohsix [link] [comments]

Are there any robust ways to measure large distances (100 meters) between objects to a subatomic level of accuracy? Posted: 18 Jun 2017 05:17 AM PDT submitted by /u/Pyrocles [link] [comments]

How dark is outer space? Posted: 17 Jun 2017 07:53 PM PDT If you got far enough into space, away from the sun or another star, would you still be able to see your hand in front of your face, or would it be too dark? submitted by /u/cbassmn [link] [comments]

How many times can a piece of plastic be recycled? Posted: 17 Jun 2017 07:08 PM PDT submitted by /u/forbestalley [link] [comments]

What happens to compounds when a radioactive isotope decays? Posted: 18 Jun 2017 06:21 AM PDT As the title says, how does decay affect compounds. For example, take carbon-14. If say the carbon in a carbon dioxide molecule decays, the carbon would release a beta particle and turn into nitrogen. How does this affect the compound that was carbon dioxide. Does it just break apart? submitted by /u/eliteal [link] [comments]

When burning liquid oxygen, what temperature is the flame? Posted: 18 Jun 2017 05:32 AM PDT When liquid oxygen is burning, what temperature is the flame? And while your here, what is a subzero flame, how can I make one, what cool stuff do they do? submitted by /u/Mandrake7287425 [link] [comments]

What would have happened if the solar storm of 2012 directly hit the Earth? Posted: 18 Jun 2017 05:17 AM PDT submitted by /u/thetimujin [link] [comments]

What are the ramifications of a severed transatlantic cable for an average person? Posted: 17 Jun 2017 09:07 PM PDT I'm trying to understand how important transatlantic cables are to average people. Would my internet go out, my phone stop receiving data/calls, etc? submitted by /u/aga_blag_blag [link] [comments]

Why are many computer parts built around multiples of 8? Posted: 17 Jun 2017 08:57 PM PDT submitted by /u/mgrin212 [link] [comments]

Why is a beam of high speed electrons required to produce x-rays? Posted: 18 Jun 2017 07:03 AM PDT The electrons are accelerated at a tungsten target, when they hit, the kinetic energy converts to heat energy, emitting x-rays due to thermal radiation. Why are all these steps necessary, could they not just make x-rays by heating a tungsten coil to the required temperature with regular current? Edit: Thermal radiation, not thermionic emission. submitted by /u/justpureironical [link] [comments]

If an object is infinitely falling in a vacuum will it be constantly accelerating? Would it be able to reach the speed of light? Posted: 18 Jun 2017 06:52 AM PDT Assume there's a portal on the ceiling and a portal on the floor and an object is falling between the two submitted by /u/CaptainGorgonzola [link] [comments]

Why does aloe help with sunburn? Posted: 17 Jun 2017 06:24 PM PDT submitted by /u/Saolba [link] [comments]

Why are some new roads built out of concrete, while others are made of asphalt? Posted: 17 Jun 2017 05:41 PM PDT submitted by /u/pileOfSchist [link] [comments]

Does centrifugal force exist or are people using a made up [but commonly accepted] term to describe inertia? Posted: 17 Jun 2017 10:16 PM PDT When I took physics in high school, our teacher drilled into our heads that "centrifugal" force is commonly used to describe the opposite to centripital force; however, the term for this is actually inertia, and saying "centrifugal" is incorrect. submitted by /u/unleash_the_booty [link] [comments]

How do we shield against Gamma Rays? Posted: 18 Jun 2017 01:13 AM PDT According to this website: "γ GAMMA: To reduce typical gamma rays by a factor of a billion, thicknesses of stop-gammashield need to be about 13.8 feet of water, about 6.6 feet of concrete, or about 1.3 feet of lead. Thick, dense shielding is necessary to protect against gamma rays. The higher the energy of the gamma ray, the thicker the shield must be. X-rays pose a similar challenge. This is why x-ray technicians often give patients receiving medical or dental X-rays a lead apron to cover other parts of their body." Source: http://www.nuclearconnect.org/know-nuclear/science/protecting You would need 1.3 feet of lead to shield against Gamma rays. My question is, are there more practical ways of shielding against Gamma rays? I've read that deep space travel is largely impractical as of now, because we have no means of shielding the prolonged exposure to gamma rays. Besides lead, what are more practical methods of protection from gamma rays? submitted by /u/hockeyboi [link] [comments]

Is there any evidence that honey bees have another metamorphosis phase that we're unaware of? Posted: 18 Jun 2017 04:58 AM PDT submitted by /u/theonlyepi [link] [comments]

Is "intergalactic space" a different temperature from normal space? Posted: 17 Jun 2017 05:16 PM PDT I was attempting to learn about space via Wikipedia and it began talking about "rarefied plasma" and the "intergalactic medium" which heats up. Sorry if this question is asked in a really awkward way. submitted by /u/ViktorMacbeth [link] [comments]

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How do solar panels work?

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• How do solar panels work?
• What caused the Chernobyl reactor to explode?
• Can astronauts with astigmatism wear contact lenses in space?
• Why is molten iron orange?
• If you were to shine a light at a black hole directly, would the speed of the photons increase past the speed of light because of the powerful pull adding to the current speed?
• Are there trace elements heavier than hydrogen inside a star?
• Questions on spacecrafts - is it possible to actually take off and land back onto a planet in one?
• Why was there no Nobel-prize for GR?
• What do ants do about flooding from rain or other disasters?
• Why does every launch related to the ISS take place in Kazakhstan?
• Why is cumulative aircraft stress measured in hours rather than mileage?
• How do we know some prehistoric animals laid eggs?
• Can we Ride a Comet?
• Would non-uniform Expansion explain the CMB variance?
• If a constant flame is applied, does a hot air balloon's vertical climb rate increase as it gets higher?
• How fragile is the space shuttle engine (bell)?
• Aside from looking at fossils, are there other geological ways to determine the different climate changes the Earth has gone through in the past?
• Why is download speed often much faster compared to upload speed?
• Are isotopes of elements evenly distributed throughout the natural world?1
• Why did it take so long to discover the first pulsar?

How do solar panels work? Posted: 17 Jun 2017 06:09 AM PDT I am thinking about energy generating, and not water heating solar panels. submitted by /u/KeesoHel [link] [comments]

What caused the Chernobyl reactor to explode? Posted: 17 Jun 2017 05:53 AM PDT I am researching the Chernobyl accident and what made the reactor explode. I found this page which explains it pretty well http://230nsc1.phy-astr.gsu.edu/hbase/NucEne/cherno.html#c5 but there are still som technicalities i don't think i quite understand. If any of you are familiar with the accident and reactor physics i would love some help! Questions: How did they make the reactor run at "Low power"? Why was the cooling system turned off/low power and why did they have to turn the emergency cooling system off? I hope i am not violating any subreddit rules, ty for your time :) submitted by /u/Valcuri [link] [comments]

Can astronauts with astigmatism wear contact lenses in space? Posted: 16 Jun 2017 02:22 PM PDT The lenses in the eyes of people with astigmatism focus differently in different directions. Corrective lenses for astigmatism, therefore, also have to focus differently in different directions. Contact lenses that correct for astigmatism are weighted so that their orientation correction is gravity assisted. Is there a different technology that could work in free fall? I'm not sure if I should flair this question as physics, biology, medicine, or engineering. submitted by /u/pez78guy [link] [comments]

Why is molten iron orange? Posted: 16 Jun 2017 05:59 PM PDT Recently there was a discussion between me and my friends and we had a little disagreement about the colour of molten iron. (All beginning with this video here: https://www.youtube.com/watch?v=8E6TzT0eCYs) To my understanding: Every object "glows" the same colour at the same temperature. Beginning from red through orange to white depending on how hot they are. Now Iron has a melting point of 1.538 °C. According to wikipedia things should begin to glow white at around 1500°C. Now like the video said molten iron has to be a little bit hotter than the melting point or else it would solidify "instantly" when you try to pour it. So even if the white glowing doesn't happen straight at 1500°C, molten iron, in order to pour it, should be a lot hotter and be white. So here is my question: Why is the colour of molten iron in movies or book descriptions or even when you google "molten iron pictures" always bright orange? Shouldn't it be at least yellow? Thanks a lot guys! :) submitted by /u/da_neo [link] [comments]

If you were to shine a light at a black hole directly, would the speed of the photons increase past the speed of light because of the powerful pull adding to the current speed? Posted: 16 Jun 2017 06:33 PM PDT submitted by /u/chris_owski [link] [comments]

Are there trace elements heavier than hydrogen inside a star? Posted: 16 Jun 2017 05:38 PM PDT To specify are there heavier elements being created in our sun right now? Can a magnesium atom be created by an area of high temperature/pressure and find its way to the surface? submitted by /u/striker7770 [link] [comments]

Questions on spacecrafts - is it possible to actually take off and land back onto a planet in one? Posted: 16 Jun 2017 05:42 PM PDT IRL it takes a massive rocket with a huge amount of fuel just to get a handful of people and some supplies off the ground and into space. However in every Sci-Fi movie or book ever made there are always small, sometimes even large space craft that are capable of flying right off the ground and into space, as well as flying through an atmosphere and back onto the ground without any complications. Is any of that actually possible? Also, if we ever do send people to a planet similar to earth, what would happen once they come into contact with the environment? In a lot of movies, the human crew just casually walks off the space ship and onto a planet, sometimes without any kind of protective suit (Like in Alien: Covenant). Wouldn't that be a bad idea? submitted by /u/Krahz [link] [comments]

Why was there no Nobel-prize for GR? Posted: 16 Jun 2017 11:04 AM PDT From Wikipedia: General relativity is considered as the most beautiful of all existing physical theories. GR was the first theory to add things to Newton's law in 300 years. Why wasn't it awarded the Nobel prize? submitted by /u/Lionh34rt [link] [comments]

What do ants do about flooding from rain or other disasters? Posted: 16 Jun 2017 04:27 PM PDT Mostly concerned with flooding from spilled water or rain but I imagine there are other disasters that can affect a hill or colony. submitted by /u/Boom2215 [link] [comments]

Why does every launch related to the ISS take place in Kazakhstan? Posted: 16 Jun 2017 03:51 PM PDT submitted by /u/SaadLag [link] [comments]

Why is cumulative aircraft stress measured in hours rather than mileage? Posted: 16 Jun 2017 02:17 PM PDT Wouldn't total distance travel account for a more sensitive measurement of stresses from air resistance and vibration provided to the aircraft its life? My (probably wrong) assumption is that hours does not reflect changes in speed over a single trip and multiple trips. An 777 cruising at Mach 0.82 probably accumulates more stress than if it was traveling at Mach 0.7 - because air resistance is related to the square of velocity? submitted by /u/z3roTO60 [link] [comments]

How do we know some prehistoric animals laid eggs? Posted: 16 Jun 2017 10:11 AM PDT submitted by /u/Mitchle [link] [comments]

Can we Ride a Comet? Posted: 16 Jun 2017 06:05 PM PDT is it possible to attach ourselves and use the comet submitted by /u/X4217 [link] [comments]

Would non-uniform Expansion explain the CMB variance? Posted: 16 Jun 2017 08:46 AM PDT As happens in physics, the thought occurred to me today seemingly out of the blue. I never finished my BS in Physics, though, so I'm wondering if there is a difference between the model of non-uniform expansion and quantum-fluctuation-driven variance in the CMB? It seems to me that if space stretched slightly faster in one area than another, you'd get cold and warm spots just like the current model of fluctuations. EDIT: RE: Title, I meant to type "Inflation," but didn't. Whoops, my bad. Also, Acronyms for those unfamiliar, I'm talking about the Cosmic Microwave Background [Radiation], which is everywhere, and extremely, but not quite, identical. submitted by /u/VirtualMachine0 [link] [comments]

If a constant flame is applied, does a hot air balloon's vertical climb rate increase as it gets higher? Posted: 16 Jun 2017 11:18 AM PDT I was discussing balloons at some point with my co-workers and I had this random thought and became very curious. My thought is as the air becomes less dense, it would be applying less downward force on the balloon, allowing the balloon's climb rate to increase. submitted by /u/absolut07 [link] [comments]

How fragile is the space shuttle engine (bell)? Posted: 16 Jun 2017 02:24 PM PDT I was perplexed when i got told that each of the little tubes in a space shuttle rocket bell (maybe not only the space shuttle ones) are each tiny fuel lines for cooling. I wondered what would happen if one of those tubes... broke/exploded/melted, would the whole engine fail? submitted by /u/RottenIceTea [link] [comments]

Aside from looking at fossils, are there other geological ways to determine the different climate changes the Earth has gone through in the past? Posted: 16 Jun 2017 10:00 AM PDT I've been looking around online to see if there were any ways to understand the past climates of an area by studying the geology in that area. I found a few results, but almost all of them seem to suggest that looking at fossils and observing their characteristics is the only way. Which made me curious, are there other ways of looking at sediment, rock formations etc. to try to determine the climate timeline of an area that don't include looking at fossils? submitted by /u/TheMaroonAxeman [link] [comments]

Why is download speed often much faster compared to upload speed? Posted: 16 Jun 2017 01:28 PM PDT submitted by /u/bicycle [link] [comments]

Are isotopes of elements evenly distributed throughout the natural world?1 Posted: 16 Jun 2017 12:31 PM PDT For instance, will random samples of oxygen, or another element yield approximately the same ratio of isotopes? Or are groups of given isotopes grouped together for some reason? submitted by /u/willwcb [link] [comments]

Why did it take so long to discover the first pulsar? Posted: 16 Jun 2017 09:49 AM PDT I recently read that the first pulsar wasn't discovered until 1967 by astronomers. Since we have been staring at the sky for millennia, and as far as I understand, we can see a pulsar's blinking light with the naked eye (with a telescope), are there any good explanations out there for why we took so long to find one? submitted by /u/raindog42 [link] [comments]

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