Pigs, popes and produce are among the topics of discussion in this issue's Dear Dirichlet advice column
Next time you are finished using a paper cup, create your own papercupter!
Factorisation is often used in cryptography. But there's something even simpler which turns out to be just as hard.
Prof. Dirichlet tackles political arguments and werewolves in answering your personal problems
Explaining how surface tension makes water form surprising shapes
Meet the Duckworth-Lewis method, 23, from Lancashire
