Harvard researchers have built an artificial fly that flies like real fly. One day it could provide discreet surveillance of suspects, detect hazardous materials and disrupt battlefield communications.
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The artificial fly is about the size of a horsefly, according to a report in Technology Review. The mainly carbon-fibre device weighs 60 grams and has a 3cm wingspan. For now it flies on a tether that also supplies power.
The US Defense Advanced Research Projects Agency, which funded the original internet, is paying to develop robofly.