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"I would never die for my beliefs because I might be wrong."

-- Bertrand Russell


Dec
24
comment Is that true that neutron activity on Earth in 2013 is unusual?
Just skimming through the topics on that website, I'd take anything coming from there with a pinch of salt. Has it been published in a peer-reviewed journal?
Dec
7
comment Electron double slit experiment and the electric field
The field will interfere too, and in such a way that you won't be able to tell, from measuring it, through which slit the electron went.
Nov
12
awarded  Yearling
Oct
28
awarded  Nice Answer
Oct
19
awarded  Taxonomist
Jul
29
comment Why terminal velocity exists?
@ZoltánSchmidt: You seem to be confused by something else as well. A body can keep accelerating while never reaching the speed of light. See Rindler coordinates.
Jul
14
comment Education : Students devising and solving their own problems
@udiboy: note it was only a critique for discouraging own investigations. As you'll note, I pretty much give the same suggestions as you do.
Jul
14
answered Education : Students devising and solving their own problems
Jul
9
comment What's wrong with this QFT thought experiment?
How does Bob encode information in the particles?
Jul
6
revised Time to immerse in a fluid
added 448 characters in body
Jul
6
revised Time to immerse in a fluid
added 29 characters in body
Jul
6
revised Time to immerse in a fluid
added 1 characters in body
Jul
6
revised Time to immerse in a fluid
edited body
Jul
6
comment Time to immerse in a fluid
@udiboy: I think the sphere is somewhat harder but more realistic. With the other forms, I would have to make an additional assumption of how the piece drops into the fluid to be able to compute things. With the sphere, it obviously doesn't matter.
Jul
6
comment Time to immerse in a fluid
@udiboy: Yes, but as you can see, calculus is unavoidable. The final formula, whatever the method you use to arrive at it will contain an integral. Of course, you could maybe partly guess a simplified formula by some dimensional analysis I suppose.
Jul
6
revised Time to immerse in a fluid
added 867 characters in body
Jul
6
answered Time to immerse in a fluid
Jun
13
comment Ascertaining a mathematical equality to derive a partition function
I've made some edits. But it now seems to me your expression is trivially true.
Jun
13
revised Ascertaining a mathematical equality to derive a partition function
edited body
Jun
13
comment Ascertaining a mathematical equality to derive a partition function
The second part about $\mathcal{N}(x)$ doesn't make sense. What is $n$, where does it come from?