By Kate Greene, Technology Review
The new type of sensor could be an early warning system for bridges and buildings under stress. Researchers at Princeton University have built a new type of sensor that could help engineers quickly assess the health of a building or bridge. The sensor is an organic laser, deposited on a sheet of rubber: when it’s stretched—by the formation of a crack, for instance—the color of light it emits changes.
http://www.technologyreview.com/computing/32336/?mod=chfeatured
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