Constructing optical waveguides in photonic crystals--cheap and easy.
Devices that connect themselves could change networking.
An African firm turns to open-source programming.
Robots that can climb stairs, crawl over ditches, survive three-story falls--and pester people who ignore your e-mails.
PARC's Mark Yim shows off his robots, which reassemble themselves to slink like snakes, roll like wheels or scamper like lizards.
Vaccine shortages could have the United States on the brink of a public health disaster. Federal health organizations are pushing for nationalized vaccine production, but industry says no.
Whether you do the moonwalk or the cakewalk, new technologies may soon ID you by how you strut.
A.I. takes aim at Wall Street
Where to plant 200 billion seeds headed for Afghanistan? Ask the satellites.
Is Osama bin Laden behind the mail attacks?