...I was working in physics at the time that came out. a bunch of us wasted ages trying to solve it. we found the solution online later...
xkcd.com/67/
My favourite webcomic is piled higher and deeper:
www.phdcomics.com
(,
Sat 2 Aug 2008, 13:58,
archived)
xkcd.com/67/
My favourite webcomic is piled higher and deeper:
www.phdcomics.com