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? |
- 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?
| Posted: 18 Jun 2017 05:09 AM PDT |
| 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? [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. [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 |
| Posted: 18 Jun 2017 02:54 AM PDT |
| Posted: 17 Jun 2017 06:52 PM PDT |
| 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? [link] [comments]  |
| Posted: 18 Jun 2017 05:17 AM PDT |
| 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? [link] [comments]  |
| How many times can a piece of plastic be recycled? Posted: 17 Jun 2017 07:08 PM PDT |
| 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? [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? [link] [comments]  |
| What would have happened if the solar storm of 2012 directly hit the Earth? Posted: 18 Jun 2017 05:17 AM PDT |
| 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? [link] [comments]  |
| Why are many computer parts built around multiples of 8? Posted: 17 Jun 2017 08:57 PM PDT |
| 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. [link] [comments]  |
| 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 [link] [comments]  |
| Why does aloe help with sunburn? Posted: 17 Jun 2017 06:24 PM PDT |
| Why are some new roads built out of concrete, while others are made of asphalt? Posted: 17 Jun 2017 05:41 PM PDT |
| 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. [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? [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 |
| 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. [link] [comments]  |
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