Thomas Themel
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 Nov 10 awarded Yearling Nov 10 awarded Yearling Jan 1 awarded Nice Answer Dec 9 awarded Precognitive Nov 29 comment Angular Momentum and Average Torque Well, the question is about AVERAGE torque, not implying that it needs to be constant. Nov 23 revised What's keeping us from simply redefining Avogadro's Number / the Mole as a definite integer? Fixed <> placeholders eaten by HTML. Nov 23 answered What's keeping us from simply redefining Avogadro's Number / the Mole as a definite integer? Nov 21 answered How do I figure out the effects of wind on flight? Nov 20 comment How is electrical energy transmitted? You can find a derivation of the Snell article here: math.dartmouth.edu/~doyle/docs/walks/walks.pdf - I'll try to write an answer, but I think the question could really benefit from a more detailed formulation as well. Nov 19 comment photoelectric effect Your quantities feel a little weird, there's a typo in your $E_{phi}$ and it's a bit awkward that you redesignate $\Phi$ from the question, but you are correct, so I'll +1 this. Nov 18 comment conversion of information to energy Also, even if you could buy Maxwell's daemon in a cage, he wouldn't violate conservation of energy, only the second law of thermodynamics (not that that wouldn't be useful, since he could make energy off the cosmic microwave background, presumably). Nov 16 answered Swimming in Spacetime - apparent conserved quantity violation Nov 15 revised Why can you “suck in” cooked spaghetti? Add thermodynamics aside, fix typos Nov 15 answered Why can you “suck in” cooked spaghetti? Nov 15 comment Why were the SI base quantities chosen as such? About the elementary charge: Why would we need to define it? It exists. "One Ampere is the current caused by a flux of of electrons per second"? Nov 15 comment Question about moment of inertia and velocity @fprime: You identified the tricky part here (which was obvious to me because I worked from a Lagrangian and only later said that "yes, that was a waste of time, let's do it using conservation of energy"). Noldorin explains this correctly in the force picture, but in the energy picture I'd say "I wrote down the `change of energy' between the before and after states, not the absolute energies". The absolute energy formulation is what the other other answer points out, for equivalent results. Nov 14 answered Question about moment of inertia and velocity Nov 13 revised How do molecules vibrate after collision? More formula typo fixes Nov 13 revised How do molecules vibrate after collision? Some formula markup fixes Nov 13 answered How do molecules vibrate after collision?