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18h
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answered | Quantum mechanics and everyday nature |
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May
19 |
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awarded | Guru |
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May
14 |
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answered | Why Planck scale is so important? |
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May
14 |
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awarded | Nice Answer |
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May
12 |
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comment |
What makes C so popular in the age of OOP? sgororzco, thanks, that is most kind of you! From your description it sounds like you have developed a good vantage point from which to see both the advantages and disadvantages of multiple styles. I actually quite enjoy the complexity of composition and multiple styles. Like having multiple tools in a physical tool chest, it provides a more diverse and ultimately effective way of dealing with the parallel complexity and diversity of the world around us. |
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May
5 |
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awarded | Nice Answer |
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Apr
29 |
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awarded | Good Answer |
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Apr
27 |
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awarded | Nice Answer |
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Apr
26 |
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awarded | Yearling |
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Apr
25 |
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awarded | Yearling |
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Apr
22 |
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comment |
Does entanglement not immediately contradict the theory of special relativity? @BrandonEnright, weighing in a bit late, this answer I provided to another question addresses (without using math) how you can get correlations without at the same time transmitting information. |
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Apr
22 |
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awarded | Cleanup |
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Apr
22 |
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revised |
Can an atom have more than 8 valence electrons? If not, why is 8 the limit? deleted 16734 characters in body |
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Apr
21 |
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comment |
Can an atom have more than 8 valence electrons? If not, why is 8 the limit? kaliaden, thanks, and please don't worry about following some of the parts. I mean that seriously, since when I read back over some parts after being away for about a year, I didn't understand what I had written either! My day job covers a lot of technical turf, so I do deep-dives on topics where I look up a lot of stuff and then move on to something else. So, I suspect my entry here is best read from the bottom up, since by then I'd had the time to translate my original thoughts into simpler terms. Perhaps I should go back and re-edit some parts even now... |
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Apr
21 |
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comment |
Why do ice cubes come out easier from top trays? That's actually the most straightforward solution I've seen yet! PAM-cubes! |
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Apr
19 |
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awarded | Popular Question |
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Apr
3 |
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comment |
Are information conservation and energy conservation related? It's not mathematically proven, if that is your question. When I said "Conservation of mass-energy is an extremely well-defined and exhaustively proven concept," I was referring to a very rich and now centuries-old set of accepted literature and results that indicate you don't just get energy for nothing, nor can you get rid of it. The equation $E^2 = p^2c^2 + m^2c^4$ (the classic $E=mc^2$ is a simplification of that for unmoving mass) cleaned up the rule a bit, but did not change the rigidity with which the total conservation of energy, mass, and momentum is observed experimentally. |
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Mar
28 |
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comment |
Did the Feynman heuristic of "simple effects have simple causes" fail for spin statistics? +1 for a really nice pair of belt videos, despite my very sincere "please no!" plea on that point :). "Exchanging buckles twice = 720$^{\circ}$" is going to confuse folks who see only a 360$^{\circ}$ rotation, but Feynman and others do explain why that is. Spin 1 becomes "no belts, just buckles", which alas is not mentioned in the description. The shared underlying math is correctly noted. But alas: I'm guessing that most folks who see even a good video like that will go away wondering why belts are "just like spin 1/2" (spinors) and buckles "just like spin 1". So: Good Feynman capture. |
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Mar
26 |
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comment |
Did the Feynman heuristic of "simple effects have simple causes" fail for spin statistics? @JKL, oops, by "gives" I did not mean pair creation, which can produce anything with enough energy. From this Wikipedia article there is this line: "In other words, the spin-statistics theorem states that integer spin particles are bosons, while half-integer spin particles are fermions." The values are more than just labels of course, since spin 1 is the smallest possible unit of quantized angular momentum. That's why folks were more than a tad surprised when (via Stern-Gerlach I think) they found some particles to have half-unit spins. |
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Mar
26 |
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awarded | Talkative |
