This edition is archived.

First cyborg discusses implications of mixing man and machine

Kevin Warwick, the world's first cyborg, and Yang Cai, a scientist at Carnegie Mellon, discuss the future and implications of cyborg technology.

How Things Work: Television Signals

Learn about the evolution of television signals, and how they are transmitted from their source to your television set.

HealthTalk: Sleep paralysis

When sleep cycle timing goes awry, a phenomenon called sleep paralysis can occur, which is when a person can dream while he is awake.

SciTech Briefs

The oldest object ever observed in the universe has been documented by scientists; it is estimated to have existed a mere 600 million years after the Big Bang.

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