4,723 reputation
1121
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location Cologne, Germany
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visits member for 4 years, 1 month
seen 2 hours ago

Functional programming enthusiast, audio engineer & musician. I work both on ugly number-crushing code for plasma- and geophysics at Universität zu Köln, and on beautiful Haskell projects of my own (which, however, seldom seem to reach a really usable state).


Jun
29
awarded  Nice Answer
Jun
16
revised Why and how does negative velocity exist?
LaTeX math parts
Jun
16
comment Why and how does negative velocity exist?
This is IMO a better answer than the accepted one: there is no such thing as a negative vector, there's only vectors with direction that happens in some basis to have negative coefficients.
Jun
10
comment What exactly is a dimension?
@TemplateRex: to be pedantic, the guy's called Gram, not Gramm...
Jun
9
comment What exactly is a dimension?
To be pedantic, what you're talking about is linear independence rather than orthogonality.
May
15
comment Is it possible to build an air compressor with no moving parts?
@user3368561: you don't need any moving parts to obtain, convert and transport electricity.
May
9
awarded  Yearling
May
4
awarded  Nice Answer
May
3
comment What exactly implies the need of quantum mechanics for self-adjoint and not only symmetric operators?
possible duplicate of Why is quantum mechancis is not content with symmetric operators, but wants self-adjoint operators?
Apr
19
revised Why doesn't light, which travels faster than sound, produce a sonic boom?
added 925 characters in body
Apr
16
awarded  Good Answer
Apr
16
awarded  Nice Answer
Apr
16
revised Why doesn't light, which travels faster than sound, produce a sonic boom?
added 282 characters in body
Apr
16
answered Why doesn't light, which travels faster than sound, produce a sonic boom?
Apr
10
comment Why is static electricity called static?
@brhans: not everyone may agree here, but I'd say a capacitor is in the realm of static electricity. A battery is not, because it depends on electrochemical processes. Freeze a battery in liquid nitrogen, and the voltage will soon drop because the reactions largely cease – without them, the battery still keeps some static charge, but that's neglectable compared to the battery's operational charge.
Apr
5
answered Does a capacitor ever get fully charged?
Apr
2
comment Why doesn't light affect a compass?
@RenéG: I didn't mean “for lower-frequency EM radiation, the needle would still not move” (that would not be light anymore), I meant “if light happened to have a lower frequency, while all other properties were the same as in reality, i.e. the wavelength would still be to small to affect the needle as a whole” – hypothetically. Of course this would entail meddling with the values of the speed of light and the Planck constant...
Mar
31
awarded  Nice Answer
Mar
31
revised Why doesn't light affect a compass?
deleted 5 characters in body
Mar
30
answered Why doesn't light affect a compass?