What is the gold and silver foil they put on satellites and why is it important? |
- What is the gold and silver foil they put on satellites and why is it important?
- Would it be possible to slow light down enough for the naked eye to see it moving?
- Did NASA nuke Saturn?
- Can wave functions of two particles completely cancel eachother out, in the same way as noise cancelling?
- How does adding heat to a liquid allow it to dissolve more substance? What effect does heat have on whatever IMFs are at work.
- What would hurt more saltwater or freshwater?
- What function does natural oil have as a part of the eco-system?
- Where do the abs go during a pregnancy? Up, down, front, back?
- How do you determine the oxidation states of transition metals?
- Why can't we objectively & accurately test the spice level, &/or capsaicin amounts in a given product?
- How does petrol "get old" in a container?
- Magnetic field disappearance in the reference frame of a moving charge before special relativity?
- There are Glasses that make Colorblind People see colors. Do they work the other way around too?
- Why do the bottoms of clouds seem to be flat while the tops seem to be very bumpy?
- Does nuclear waste produce energy?
- What is under Saturn's clouds?
- How and when does brain and nervous system turn on in human fetus?
- What are the actually formulas of the Trigonometric functions?
- Quantum Physics, How many states can matter be the superposition of at once?
- What happens if a white dwarf is accreting mass slowly until he reaches the tipping point to become a neutron star?
- What if you sprayed a hydrophobic solution (UltraEverDry, NeverWet) onto water?
| What is the gold and silver foil they put on satellites and why is it important? Posted: 17 Sep 2017 04:32 AM PDT I was looking at a picture of a satellite in the news the other day and noticed that every time I've seen some kind of space-related piece of equipment, it is wrapped in gold/silver foil. Is this real gold and real silver? What is it? Why is it used? Thank you! [link] [comments]  |
| Would it be possible to slow light down enough for the naked eye to see it moving? Posted: 17 Sep 2017 01:07 AM PDT Light moves 66% of c in water. Would it be possible to create a liquid(other states of matter also count) in which light moves so slowly so that it's visible with the naked eye? An example: Let's say that we have a curtain of said liquid. If I stand on one side of it, and quickly am to walk to the other side, and looked through the curtain, would I then see a past reflection of myself, one which stands on the other side of the curtain? [link] [comments]  |
| Posted: 16 Sep 2017 03:35 AM PDT NASA just sent Cassini to its final end... What does 72 pounds of plutonium look like crashing into Saturn? Does it go nuclear? A blinding flash of light and mushroom cloud? [link] [comments]  |
| Posted: 16 Sep 2017 06:17 PM PDT |
| Posted: 17 Sep 2017 03:29 AM PDT If a solid is clumping to itself while surrounded by liquid, it probably means the solid molecules have greater IMFs between themselves than with h20 (what about if they're just pressed together? E.g a pill. I'm not sure). Heat means more kinetic energy in the water built that's where I can't bridge the understanding gap I haven't had a fun chem question like this in a while, brings me back to muh roots [link] [comments]  |
| What would hurt more saltwater or freshwater? Posted: 17 Sep 2017 06:11 AM PDT If you were to jump into a freshwater lake vs jumping into salt water, will the impact be harder on your body for one or the same for both? Hypothetically if you could replicate both jumps from the exact same height, landing the exact same way and both bodies of water were the exact same temperature [link] [comments]  |
| What function does natural oil have as a part of the eco-system? Posted: 16 Sep 2017 11:51 PM PDT |
| Where do the abs go during a pregnancy? Up, down, front, back? Posted: 16 Sep 2017 01:23 PM PDT |
| How do you determine the oxidation states of transition metals? Posted: 16 Sep 2017 04:18 PM PDT I know that a lot of the transition metals have oxidation states of +2 and +3, but I was never taught what determined them, and it seems pretty random. My teachers just told me to memorize each transition metal [link] [comments]  |
| Posted: 15 Sep 2017 07:19 PM PDT The scoville units don't seem to be the most scientific approach to determining spice level. We have nutrition labels, we determine alochol, caffeine, THC, & OTC med content level. Why can't we test objectively & accurately the spice level of foods? [link] [comments]  |
| How does petrol "get old" in a container? Posted: 16 Sep 2017 08:29 PM PDT Discovered today that petrol, even if it's in a decent container, gets "old" and loses combustability. You can also get additives to prevent this. What's going on and what do the additives do? [link] [comments]  |
| Magnetic field disappearance in the reference frame of a moving charge before special relativity? Posted: 17 Sep 2017 12:08 AM PDT If a charged particle is moving steadily, there is an associated magnetic field. However in the reference frame of the particle, the magnetic field disappears. It's naturally reconciled if you consider relativistic contraction, but I'm curious how physicists approached the problem before the advent of special relativity/ Lorentz transformations. [link] [comments]  |
| There are Glasses that make Colorblind People see colors. Do they work the other way around too? Posted: 15 Sep 2017 02:40 AM PDT What happens if "normal" people wearing them? Do they see B&W? Could the glasses be modified to do so? Edit: I know Colorblind people don't see B&W. It was a metaphor because there are so many different ways of colorblindness. [link] [comments]  |
| Why do the bottoms of clouds seem to be flat while the tops seem to be very bumpy? Posted: 16 Sep 2017 02:39 PM PDT |
| Does nuclear waste produce energy? Posted: 16 Sep 2017 08:12 AM PDT Might be a stupid question, but I was thinking that if it could produce energy, we could use it as an RTG and blast it off into space. [link] [comments]  |
| What is under Saturn's clouds? Posted: 16 Sep 2017 08:34 PM PDT I could never really understand what's under Jupiter's and Saturn's gases. You could see meteor strikes [I remember a while ago, a series of huge asteroids hit jupiter and you could see the black spots from them], yet I still can't understand how that can be visible if there are such thick gases on its surface. [link] [comments]  |
| How and when does brain and nervous system turn on in human fetus? Posted: 16 Sep 2017 11:30 AM PDT |
| What are the actually formulas of the Trigonometric functions? Posted: 17 Sep 2017 12:48 AM PDT In other words, what is the sine inverse function actually doing to in the equation "sin-1 (17/23)" to turn 17/23 into 47.65739... degrees? Also, the other way around: If I had sin(47.65739°), what is the sine function doing to turn that angle back into a ratio? is there a specific formula that each one has? [link] [comments]  |
| Quantum Physics, How many states can matter be the superposition of at once? Posted: 16 Sep 2017 11:11 AM PDT Schrodinger's Cat was Dead/Alive. Could it have also been Dead/Alive/Maimed in a similar scenario? is there a limit to the superposition? [link] [comments]  |
| Posted: 16 Sep 2017 07:14 AM PDT So i am not talking about a merger of two white dwarfs for example, which i know are violent events. More like a slow procress like syphoning matter from a binary partner. How violently would such a process happen? Is there some kind of supernova happening when the dwarf collapses? Bonus question: what happens if a neutron star amasses matter slowly and turns into a blackhole? [link] [comments]  |
| What if you sprayed a hydrophobic solution (UltraEverDry, NeverWet) onto water? Posted: 16 Sep 2017 03:52 PM PDT |
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