Ben Alpert
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 Dec 4 awarded Notable Question Oct 20 awarded Popular Question Oct 18 revised Probability that a stick randomly broken in two places can form a triangle deleted 6 characters in body Oct 18 comment Probability that a stick randomly broken in two places can form a triangle @hlapointe If the first break gives a stick with length $x$, then the remaining length is $1-x$. Splitting that randomly is the same as multiplying by a random number $y$ between $0$ and $1$, so we get $y(1-x)$. Aug 11 awarded Nice Question Jul 20 awarded Yearling Apr 10 comment How can you prove that the square root of two is irrational? If $p = 2^k m$ where $m$ is odd, then $p^2 = 2^{2k} m^2$ (where $m^2$ is still odd). Feb 17 awarded Nice Answer Jan 20 awarded Notable Question Nov 15 revised Proof that $n^3+2n$ is divisible by 3 edited body Nov 9 revised Balance chemical equations without trial and error? added 27 characters in body Sep 30 awarded Explainer Jul 20 awarded Yearling Jul 2 awarded Curious Jan 24 awarded Popular Question Sep 16 awarded Popular Question Aug 30 awarded Nice Answer Jul 20 awarded Yearling May 27 awarded Guru May 8 awarded Caucus