Why is 18 the maximum amount of electrons an atomic shell can hold? |
- Why is 18 the maximum amount of electrons an atomic shell can hold?
- How does the brain perform computation?
- Feyman diagrams and gauge bosons?
- Isn't the zeroth law of thermodynamics essentially the transitive property?
- How do spacecraft/rovers/space probes communicate back to earth from such long distances?
- What did South America look like 30-40k years ago?
- How do we know the structure of molecules?
- How are objects recognized from colors?
| Why is 18 the maximum amount of electrons an atomic shell can hold? Posted: 31 Jul 2019 05:03 AM PDT |
| How does the brain perform computation? Posted: 30 Jul 2019 05:46 PM PDT Computers perform computation by executing instructions at a CPU ( or group of CPUs ). I've read that an advantage the human brain has over typical modern computers is that it is massively parallel and every neuron acts somewhat like a CPU, where every neuron is able to perform some computation locally? In contrast programs on a computer have to compete with each other for execution time at the CPU. What does computation look like in the human brain? [link] [comments]  |
| Feyman diagrams and gauge bosons? Posted: 30 Jul 2019 05:27 PM PDT Beta- Decay https://imgur.com/gallery/MHJJ57N Hey, so I just have a couple of "little" questions which have been bugging me while "learning" this stuff for fun. One of the questions I have is about the diagrams used for these quantum interactions, is the axis on the left there for time? And if so, why does the electron travel back in time (along with the boson seemingly) when it is actually being emitted. The other question I have (and I'm totally prepared to get no answer or a completely incomprehensible one for) is about gauge bosons, a quick search tells you that it is with these bosons that forces can have particles interact, but to my knowledge photons are not the particles with which electromagnetic fields act upon things (if that makes any sense? Like gluons allow the strong force to colour change particles, but photons don't really do anything?). So are gluons the only way forces can act is what I'm trying to ask. Thank you very much to anyone willing to read through this and answer any of the questions :) Sorry for any formatting or spelling errors as I am on mobile and am also new to this subreddit tl;dr: am very confused [link] [comments]  |
| Isn't the zeroth law of thermodynamics essentially the transitive property? Posted: 30 Jul 2019 08:20 PM PDT |
| How do spacecraft/rovers/space probes communicate back to earth from such long distances? Posted: 30 Jul 2019 02:29 PM PDT |
| What did South America look like 30-40k years ago? Posted: 30 Jul 2019 08:41 AM PDT From a landscape side of things, was it the rain forest we have today? Or would Green Sahara have interfered with that process? [link] [comments]  |
| How do we know the structure of molecules? Posted: 30 Jul 2019 12:12 PM PDT |
| How are objects recognized from colors? Posted: 30 Jul 2019 10:22 AM PDT When I see a tree, what I am actually seeing is brown, black, different shades of color, some green and such. And also the colors that are not part of the tree such as possibly the blue of the sky and such. How is the outline of the tree formed from the colors? Where does the recognizance of tree come from? [link] [comments]  |
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