Why is there more matter than antimatter? |
- Why is there more matter than antimatter?
- Why are certain chemicals carcinogenic? , for example Asbestos?
- How does placing a block of iron on the copper hull of a ship prevent corrosion in the copper?
- How did NASA increase the weight limit of the LEM in the later Apollo missions?
- Does my stove glow red when heated because of accelerating charges or quantum mechanics?
- Why are CPU frequencies so much higher than GPU frequencies?
- Could an H-bomb start fusion in its surroundings if exploded in a cloudy sky (and thereby cause more fusion to more of the surrounding clouds)?
- Are electromagnetic waves getting weaker with distance in vacuum?
- Is the 'framerate' of our eyes greater in our peripheral vision compared to the 'frame rate' of our eyes more towards the center of our field of view?
- The universe today is made of baryonic matter, dark matter and dark energy. How did they estimate the percentage of the universe that is made of dark energy?
- Why is it hard to predict a protein's tertiary structure if all you know is its primary structure?
| Why is there more matter than antimatter? Posted: 29 Sep 2019 11:13 PM PDT |
| Why are certain chemicals carcinogenic? , for example Asbestos? Posted: 29 Sep 2019 08:45 PM PDT |
| How does placing a block of iron on the copper hull of a ship prevent corrosion in the copper? Posted: 29 Sep 2019 07:58 PM PDT Or for that matter, why not metals like gold or nickel (as the block)? Why not electroplate the iron onto the copper hull itself, and then electroplate zinc on that? Why would a block of iron that does not cover all the copper stop corrosion in all the copper? [link] [comments]  |
| How did NASA increase the weight limit of the LEM in the later Apollo missions? Posted: 29 Sep 2019 05:03 PM PDT I was watching From the Earth to the Moon recently, and in the episode where the first LM was built, the big problem in building it was getting it under the launch weight limit. How did the subsequent LMs seem to be much heavier than the first one (they were on the moon for longer, had a rover, etc.) Was the launch weight limit increased? or did they manage to keep the weight the same? Or was the episode just using that as drama? [link] [comments]  |
| Does my stove glow red when heated because of accelerating charges or quantum mechanics? Posted: 30 Sep 2019 01:29 AM PDT I've been hearing 2 explanations for why my stove glows red when heated. First reason: Everything above absolute 0 gives off electromagnetic radiation. This is because accelerated charges produce radiation and anything with a temperature above 0K contains charged particles with changing velocities. Second reason: When things get hot, atoms and molecules bump into each other. This excites the electrons into more energetic orbits and when they decay back into lower orbits, the excess energy is given off as discrete packets of electromagnetic radiation known as photons. So, which is it? And if it is both, then in what way? Bonus question: How is the black body spectrum continuous if quantum mechanics is discrete? [link] [comments]  |
| Why are CPU frequencies so much higher than GPU frequencies? Posted: 29 Sep 2019 11:18 AM PDT Most CPUs can reach 4.8+GHz easily, whereas most GPUs struggle to get 2+GHz, why is that? [link] [comments]  |
| Posted: 29 Sep 2019 10:00 PM PDT Don't know if this the right place to ask this? Seeking on r/findareddit pointed me here. Basically I wanted to know if its possible to start fusion reaction in a cloudy sky by exploding an H-bomb, and thereby causing more destruction to the land area right below the clouds (and far beyond). My gut tells me it's not possible, but couldn't find anything worthy on the internet to be sure. [link] [comments]  |
| Are electromagnetic waves getting weaker with distance in vacuum? Posted: 29 Sep 2019 11:19 AM PDT So does electromagnetic waves fade when they are travelling through vacuum? What I mean - this EM wave generated by the transmitter is going in all directions from the source, forming a sphere and spreading through vacuum (at least that's the way I understand it). I also understand that those waves carry energy in some way (correct me if I'm wrong). As we get furtherer from the source there are more points where we can receive this wave (thus the energy it's carrying). So according to the law of conservation of energy this signal should be weaker on a greater distance because it spread on a bigger area. But I guess that I got something horribly wrong in my way of thinking, so please show me where I made a mistake. Just to be clear, I've searched this on Google for a dozen of times but I couldn't find an answer. [link] [comments]  |
| Posted: 29 Sep 2019 02:54 AM PDT I'm wondering if you would place a screen and play animations which have different frame rates (other parameters constant) would the frame rate of the animation at which you would perceive the animation as fluid be different to the frame rate if you would do the same experiment in the centre (or close to it) of your field of view. Origin of the question: I was driving on public transport and noticed that the wheels of the car on the left of us, which was going at about the same speed, seemingly changed speed when I saw them at different angles of my field of view. Most noticeable was the change when the wheels were in my peripheral field of view. I tried multiple times. [link] [comments]  |
| Posted: 29 Sep 2019 12:44 PM PDT I've seen this diagram before in various articles or videos: https://cdn.hswstatic.com/gif/universe-made-of-1.gif I understand the way to estimate visible matter (starts, planets and other bodies). [link] [comments]  |
| Why is it hard to predict a protein's tertiary structure if all you know is its primary structure? Posted: 29 Sep 2019 12:40 PM PDT |
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