The British scientist J.D. Bernal believed that human beings' would eventually be replaced by creatures who's bodies were half-human and half-machine.

Instrument-makers have tried to reproduce a Stradivarius violin's precise sound for hundreds of years, but all of they're attempts have been unsuccessful.

Bats can perceive and stalk their prey in complete darkness, using a system of ultrasonic sounds to produce echo's that identify it's location.

A computer program devoted to facial recognition can determine people's emotions by following there faces' movements and linking its readings with a database of expressions.

George Westinghouse was an electrical industry pioneer who's first major invention, the rotary steam engine, earned him many scientists' admiration when he was still a young man.

Although Los Angeles has long been famous for it's traffic jam's, pedestrians are now able to walk in the cities center with much greater ease.

The peacock is a bird who's penchant for showing off its bright, multicolored plumage has made it a symbol of vanity and pride in many different cultures.

The gray wolf, which once lived throughout much of North America, is now rarely spotted because it's habitat has been almost entirely destroyed.

Every spring, New Orleans receives thousands of tourists for Madri Gras, the years most important festival. Visitors arrive their from around the world.