English mathematician who is credited to have invented the slide rule for multiplication and division. He was also the first to use ‘x’ as the symbol for multiplication and abbreviating sine and cosine to "sin" and "cos".
The purchaser of the 10 billionth song from iTunes was 71-year old Louie Sulcer from Woodstock, Georgia. The song was "Guess Things Happen That Way" by Johnny Cash. Sulcer got a call from Steve jobs and a $10,000 iTunes gift card. [more...]