Al Gross's 1938 invention of the walkie-talkie launched mobile communications.
From typewriters to vacuum tubes, these 10 technologies aren't as obsolete as you might think.
Millions of Japanese schoolgirls can't be wrong: there's always a market for instant gratification.
Despite skyrocketing R&D spending, pharmaceutical companies' drug output has slowed dramatically. Pfizer is counting on creative new technologies to keep the pipeline full.
Who needs batteries? Small gadgets could draw power from the tiny tremors in your office or car.
Computer-guided laser beams create microscopic 3-D structures.
A chip that combines optics and electronics generates light 100 times more efficiently than previous devices.
New software analyzes human speech to tell when a person is irritated or impatient.