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Top Questions
40
votes
How did Euler prove the Mersenne number $2^{31}-1$ is a prime so early in history?
prime-numbers
asked Mar 22 at 15:27
math.stackexchange.com
37
votes
Is there such a thing as proof by example (not counter example)
logic
soft-question
philosophy
proof-theory
asked Mar 21 at 7:12
math.stackexchange.com
8
votes
Why does thermal resistance go down as temperature goes up?
thermodynamics
acoustics
asked Jul 24 '12 at 22:45
physics.stackexchange.com
6
votes
Is my Chinese visa reusable?
visas
china
hong-kong
taiwan
tibet
asked Feb 24 at 0:29
travel.stackexchange.com
5
votes
Wrapping images in text without inducing ugly justified text
graphics
wrapfigure
asked Feb 12 at 14:08
tex.stackexchange.com
Top Answers
11
Guitar chords high on the neck
music.stackexchange.com
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