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seen Dec 8 at 15:56

Sep
8
awarded  Yearling
Dec
16
comment Tidal force on far side
The two planets will start to fall towards each other. The ocean close to the other planet will have greater acceleration because 1/r^2 and the ocean away from the other planet will have slower acceleration. So the ocean on the far side will be left behind as the planet falls in towards the other planet. That will look like a bulge to an observer on the planet.
Dec
15
answered Is it possible to reduce the sound, when two metal objects collide (perhaps with some coating) without reducing the rigidity of the surface?
Dec
7
comment Crucial Misconceptions about The Universe
The problem with the bright sky argument is that because of the expansion of the universe, the photons are extremely red shifted. That's why the sky is so dark. Even though in every direction we would see the big bang, if only our eyes could see microwave radiation. The universe beyond the edge of the visible region could be infinite, but the space between us and those regions are expanding so fast that photons cannot get across. Anyway, the Big Bang was a derogatory term used to criticize, and is not an explosion. It is better to think of expanding space.
Dec
7
awarded  Constituent
Dec
7
awarded  Caucus
Nov
30
comment Why do power lines buzz?
This theory should be easy to check. Lines running along north south magnetic lines wouldn't hiss.
Nov
25
answered Can an electron be in two places at the same time?
Nov
19
answered Is it really a particle?
Nov
17
awarded  Critic
Nov
15
comment Computational Science involve programming?
I had never heard the term, but it looks like computational materials science is very different from computational science. Computational science is primarily related to theoretical mathematics of computing. CMS is described here csm.ornl.gov/comp_materials It does sound applicable to your background, and yes it will involve programming, which computational science does not.
Oct
9
comment Can 2 beams of ultraviolet light intersect and be visible where they intersect?
If all you care about is the invisible part, and not actually ultraviolet, then en.wikipedia.org/wiki/Two-photon_excitation_microscopy is for you.
Oct
8
awarded  Commentator
Oct
8
comment Can the apparent equal size of sun and moon be explained or is this a coincidence?
@AlanSE As you point out, a moon should help with clearing asteroids. So a solar tide only is not an option. I think tides are compelling, because for evolution of complex features you would need an environment that is sheltered from the random events like storm surges, because randomness reduces the benefit of very small differences between individuals, and thus would slow evolution. A sheltered location would benefit from tides to remove waste and exchange nutrients and new genetic variations. The minimum number of tides per day would result in greater distance and volume of exchange.
Oct
8
comment Can the apparent equal size of sun and moon be explained or is this a coincidence?
That's reasonable for approximately the same size, but how do we get to almost the same? Does the closeness in the tidal forces from the sun and the moon result in a simpler tidal pattern? In other words, the lunar and solar tides appear to be a single tide that shifts through the day. A more complex pattern of two tides could be too difficult for primitive organisms to develop predictive mechanisms, and so would not be able to develop internal clocks to cope with migration on the beach, and so would wash away.
Oct
7
awarded  Enthusiast
Oct
6
answered Linear Algebra for Quantum Physics
Sep
27
answered Is the Lagrangian “math” or “science”?
Sep
27
comment Energy is quantized
I see that the wave function must be continuous as a postulate, but is there an explanation for why that must be true?
Sep
27
answered Tried to do the double slit experiment, failed. Why?