Prime Number Hide-and-Seek: How the RSA Cipher Works. This page describes in detail the mathematics that make the RSA cipher tick.
A Monovocalic Sonnet on Dante's "Inferno". This is an English "translation" of one of Giuseppe's Varaldo's monovocalic sonnets.
Short Words to Explain Relativity. An explanation of Albert Einstein's Theory of Relativity entirely using words no more than four letters long.