New surgical instruments developed at the University of Wisconsin at Madison may give new meaning to the term "cutting edge." Assistant engineering professor Amit Lal has devised a way to carve tiny

Fewer false alarms : Six million Americans visit emergency rooms each year complaining of chest pain. Only 10% of them have had an actual heart attack, though - and weeding them out for treatment is

Breakthroughs in genetics have made it possible to improve crops in ways conventional breeders couldn't have dreamed of. After years of research and a few broken promises, a second green revolution

Critics of U.S. air-pollution regulations tend to stress the heavy costs of such standards-if only because the burden on business is immediate and easy to assess, while the benefits are delayed and

At last month's American Physical Society meeting, Dartmouth researcher Mary-Ann Mycek described a new laser system that will help doctors identify a malignant tumor without having to do a biopsy.

Researchers from Zymo Genetics Inc., a Seattle biotechnology company, have identified three new compounds, each of which stimulates new bone growth in animals. If they prove to do the same in humans,

When a plane crash-lands and catches fire, half the people who survive the impact may not get out in time. That's because the plastics in the cabin-the seat cushions, carpeting, walls and luggage

Foiling a good gene's evil twin : The vast majority of prostate cancers appear to be linked to a common genetic process- a discovery that holds promise of curing cancer by reversing the process. The

It looks like a huge traffic cone that has sprouted a palm tree. But the 63-foot tall Roton is a hybrid rocket helicopter that Rotary Rocket Co. hopes will slash the cost of putting satellites into

Stephen A. Roth, a tentured biology professor at the University of Pennsylvania had figured out how to make certain complex sugar molecules cheaply and in large enough quantities to be used