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MIT researchers build robot fireflies

Robotic lightning bugs

Researchers intrigued by the way fireflies signal each other at night have built robotic analogs the weight of paperclips, MIT News reports.

The tiny artificial muscles that control the robots’ wings emit colored light during flight.

This electroluminescence could enable the robots to communicate with each other. If sent on a search-and-rescue mission into a collapsed building, for instance, a robot that finds survivors could use lights to signal others and call for help.

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