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.
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.