__Pythagoras__

** disability: epilepsy** **(source)**

** Most famous is his
theory for working out the
length of sides on a right-angled triangle; namely:**

** "the square on the hypoteneuse
(the longest side) is equal to the sum of the squares on the other**
** two sides".**

** Less well-known is
Pythagoras' second theory, which can be used for a non-right angled
triangle.**

** This has many uses, including
triangulation**

** (which also has many uses,
including use by the DTI for tracking down and raiding pirate radio
stations -** ** b******s!)**