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So I decided to do some bbq for new year's eve. It's snowing here and the floor may be below 0. What I would have never expected is that...
Asked on 05/17/2021 by daniel sp
1 answerIn the Kerr black holes we have infinite-redshift surfaces (where a infalling body is still according to the asymptotic observer) and event horizons (the escape velocity becomes greater than the...
Asked on 05/17/2021 by lytex
2 answerSuppose you can perform any weak measurement of your choice on an ensemble of particles composed of two equally sized sub-ensembles, but you can't use any other source of information...
Asked on 05/17/2021 by triclope
0 answerI wanted to know why fiber optics look green or blue, isn't it that it uses total internal reflection, so light shall remain in it? I think may be it's...
Asked on 05/17/2021
1 answerI understand that the heat capacity depends on depends upon both microscopic (molecular/atomic) and macroscopic (phase, temperature, pressure). If I have an environment wherein both - the pressure and volume...
Asked on 05/17/2021 by Dexter
1 answerWater moves upward in a capillary tube due to intermolecular forces between water and the glass wall of the capillary tube. If those forces act on water pushing it up,...
Asked on 05/17/2021
1 answerI have learned in thermodynamics that it is impossible for a cyclic system that is receiving energy as heat from one and only one thermal reservoir to produce a net...
Asked on 05/17/2021 by Michael Tamajong
1 answerI guess I would have thought it was linear. The exponential dropoff surprised me and I don't understand why it's the case--can someone explain?...
Asked on 05/16/2021
2 answerI would have a quite stupid question: What is the connection between complex refractive index and the "normal refractive index" that I find in every high school books? Is that...
Asked on 05/16/2021
3 answerConsider an electron moving in the plane with a perpendicular constant magnetic field. It is well-known I think that the direction of motion can be changed by the magnetic field...
Asked on 05/16/2021
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