New polymer releases molecular cargo in response to force

Caltech scientists have developed a new kind of polymer that can carry a chemical payload as part of its molecular structure and release it in response to mechanical stress. The chemical system they have developed could one ...

Shrink films get a grip

Many people fondly remember playing with toys known as Shrinky Dinks—sheets of polystyrene plastic with shapes that kids can color, cut out and heat in an oven, where they shrink into thicker pieces of plastic. Now, researchers ...

No signals from newest Kepler planet

A newly discovered planet has been observed with the Allen Telescope Array in a search for radio signals that would betray technically sophisticated inhabitants, but no transmissions have been detected.

Car-to-car talk: Hey, look out for that collision! (Update 3)

A car might see a deadly crash coming even if its driver doesn't, the U.S. government says, indicating it will require automakers to equip new vehicles with technology that lets cars warn each other if they're plunging toward ...

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