Estonian robots headed for US must master crosswalks

A knee-high, black-and-white buggy rolls down a snowy pavement in Estonia's capital Tallinn and, carefully avoiding pedestrians, stops obediently at the red traffic light of a large road junction.

More efficient nano-LED opens door to faster microchips

The electronic data connections within and between microchips are increasingly becoming a bottleneck in the exponential growth of data traffic worldwide. Optical connections are the obvious successors but optical data transmission ...

Video: What your mucus says about your health

It's peak cold and flu season, and mucus is making many of our lives miserable. But despite being a little icky, phlegm gets a bad rap. This germ-fighting goo contains cells and chemical compounds that help us power through ...

Probing the function of key proteins

"Kinase inhibitor" drugs, which target a class of enzymes that are crucial to keep cells running, make up one of the great success stories of modern medicine.

Government to require cars be able to talk to each other

All new cars and light trucks would be able to talk wirelessly with each other, with traffic lights and with other roadway infrastructure under a rule the Transportation Department proposed Tuesday. Officials say the technology ...

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