Why Do We Use The Letter X To Represent The Unknown?

In algebra, we're often asked to solve for x, and, in the English language, the letter x is often used to signify the unknown—X marks the spot, X-rays, and Mr. X, for example. But how did this particular letter become associated with so much mystery? » 6/10/14 2:31pm 6/10/14 2:31pm

Watchmen Producer Picks Up Echo

Brace yourself for another hottie superheroine. Lloyd Levin, one of the producers behind Watchmen, has picked the rights to Terry Moore's Echo. The gorgeous comic follows Julie, who is forever changed after coming into contact with a secret military experiment. » 7/22/09 10:40am 7/22/09 10:40am