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May
5
comment What do the recent vacuum tests mean for the believability of NASA's EM Drive?
never said that. the articel imho asks some questions that would be interesting for the OP
May
5
comment What do the recent vacuum tests mean for the believability of NASA's EM Drive?
see forbes.com/sites/ethansiegel/2015/05/04/… basic gist: extraordinary claims, but no extraordinary proof, still a few new developments (Force measured a bit greater than measurement uncertainty, apparantly).
Apr
30
awarded  Notable Question
Mar
20
awarded  Inquisitive
Mar
2
comment Amount of energy to separate Gases - relationship to concentration
@mew do you want to share the paper?
Mar
2
revised Potential energy of Hydroelectric plant before the dam was built
added quick calc for actual temp diff.
Feb
14
awarded  Yearling
Feb
2
comment Unmixing of gases: What is the relevant temperature for my Entropy?
coming back rather late at this ... so what is the heat bath in water scrubbing? distillation? amine scrubbing? membranes?
Feb
2
answered Potential energy of Hydroelectric plant before the dam was built
Jan
20
comment Is Carnot engine the only reversible engine?
see physics.stackexchange.com/questions/9261/… and physics.stackexchange.com/questions/77914/…
Dec
1
comment What exactly is the composition of radiation in interplanetary space?
I only skimmed the article, but my question was about intensities/dosage in different types and spectra of radiation. That does not seem to be in the article.
Nov
10
asked Dissipation depending on viscosity - where am I wrong?
Nov
4
awarded  Popular Question
Oct
2
comment Energy of unmixing
I have some further questions regarding this topic and your answer here: physics.stackexchange.com/questions/137990/…
Sep
30
comment What happens to the physics when you scale-up a water and air bubble in zero-gravity to gigantic size?
Sounds like an astronomy question about water giants. More seriously, with a planet-sized anything mad of liquid water you no longer have zero-g.
Sep
30
asked Unmixing of gases: What is the relevant temperature for my Entropy?
Jul
15
comment Can we 'see' the Kolmogorv microscale
flow is no numbers game, it's a mechanical thing with mechanical effects. Obviously we both don't know, but I don't think your analogy holds.
Jul
15
comment Can we 'see' the Kolmogorv microscale
But I would not need to isolate a particular eddy - I'd just need to be sure that there's no eddy smaller than x. Would this not be possible by looking at the shearing of droplets, diffusive mixing or co-moving suspended particles?
Jul
2
awarded  Curious
Jun
19
awarded  Popular Question