News
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TechAircraft trick may give big rigs a gentle lift
Using sheet-like jets of air to control aerodynamic drag and lift—a technology first developed for aircraft—may boost gas mileage and improve braking and handling of tractor-trailer trucks.
By Peter Weiss -
Materials ScienceCrystal puts pressure on diamonds
A new type of synthetic crystal called moissanite allows researchers to study more material at high pressure than is possible with traditional diamond devices.
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Nicotine metabolism may spawn carcinogen
The body may metabolize nicotine into products that the lungs subsequently may convert into a potent compound that causes lung cancer.
By John Travis -
AnimalsDull birds and bright ones beat so-so guys
The plumage of yearling male lazuli buntings shows signs of a rare form of evolutionary pressure called disruptive selection.