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seen Jan 1 at 14:40

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 <large number> 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?