Layer by Layer

With 3-D printing, manufacturers can make existing products more efficiently—and create ones that weren’t possible before.

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China Beckons for Green-Energy Startups

Boston Power’s move reflects China’s willingness to provide incentives for companies in strategic industries.

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What Has Technology Fixed Since 9/11?

Not much, as it turns out. And it’s helpless against the widespread threat of bureaucracy.

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Brain Control

Technology Review visits Ed Boyden, an assistant professor at the Media Lab and leader of the Synthetic Neurobiology Group at MIT, in his lab, where he demonstrates a device to turn neurons on and off and discusses how photosensitive proteins can be used to study and manipulate the workings on the brain.

Brain Control

Ed Boyden is learning how to alter behavior by using light to turn neurons on and off.

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Bomb Buster

Aimée Rose demonstrates one of the ultrasensitive, handheld explosives detectors that she helped to develop, first as a graduate student at MIT and then as a research scientist at ICx Technologies.