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Apr
28
revised How much does the Earth's rotation affect a golf ball?
added 265 characters in body
Apr
25
comment How is Mössbauer spectroscopy so resistant to thermal motion?
@CuriousOne: So you average the motion over about one half-life to estimate how much thermal effects smear things? Also it would be far-field (one-way) resonant coupling?
Apr
25
comment How is Mössbauer spectroscopy so resistant to thermal motion?
@Jon Custer The thermal motions are going to populate too many phonons to ever get stillness on the mm/s scale regardless of recoil. The odds that ~cm/s small-scale-collective motions all the way to ~100 m/s single-atom motions will lay dormant are very rare, yet we see ~mm/s sharp peaks.
Apr
25
asked How is Mössbauer spectroscopy so resistant to thermal motion?
Jan
11
asked Ski treadmill materials
Jan
7
comment Why do circularly connected springs have a mode with zero frequency?
@garyp: your answer is right. I explained it a bit more.
Jan
7
answered Why do circularly connected springs have a mode with zero frequency?
Jan
1
revised Can horizontally and vertically polarized light combine to become circularly/elliptically polarized light?
added 3 characters in body
Dec
21
revised Flow through a rifled pipe
added 326 characters in body
Dec
21
comment Flow through a rifled pipe
@CuriourOne: I was thinking of en.wikipedia.org/wiki/Internally_rifled_boiler_tubes. Maybe this is different. And paywalls suck!
Dec
21
comment Flow through a rifled pipe
@CuriousOne: I think this is for two phase boiling water flow for which the liquid phase gets centrifuged out to the sides of the pipe and improves heat transfer.
Dec
21
asked Flow through a rifled pipe
Nov
19
asked microturbine heat loss
Oct
31
awarded  Yearling
Oct
11
reviewed Approve Confusion about Lie derivative on metric
Sep
10
revised why are quantum vortices so large?
added 18 characters in body
Sep
10
asked why are quantum vortices so large?
Aug
31
accepted Trying to give a (non-rotating) black hole an electric dipole
Aug
28
asked Trying to give a (non-rotating) black hole an electric dipole
Apr
30
accepted Enforcing the exchange criteria for two particles in a box in different states