Tiny robotic insect
takes flight


News: a tiny robotic insect that hovers in the air like a fly has been built by scientists at Harvard University (+ movies).

The robot, which weighs just 80 milligrams and is the size of a small coin, can hover in the air for up to 20 seconds.

Its Harvard University developers modelled the robot's movement on real flies, which flap their wings around 120 times per second.

The researchers made the wings with piezoelectric material, which contracts when a small electrical charge is passed through it.

Tiny robotic insect takes flight

Switching the voltage on and off at high speeds produces a rapid contracting effect that mimics the movement of a fly's tiny wing muscles.

For now, the robots have to be tethered to thin copper wires that provide electric power and navigation information, but the researchers hope that a battery will one day be lightweight enough to be attached to the robot itself.

The team suggests the robots could be used for search-and-rescue operations, monitoring environmental damage, tracing chemicals or pollinating crops, while their discreet size could also make them suitable for military surveillance.

The RoboBee project was reported in the journal Science this week by Dr Robert Wood and his team at Harvard's Wyss Institute for Biologically Inspired Engineering at Harvard.

Tiny robotic insect takes flight

Last year we reported on robot helicopters programmed to lift and stack polystyrene bricks into a six metre-high tower, while other machines we've featured include a duo of robotic bartenders and a robotic 3D printer that builds architecture from sand  – see all robots.

Photographs are by Kevin Ma and Pakpong Chirarattananon.

  • mik

    I thought this had been invented decades ago.

    • please

      Oh, did you?

  • bassem

    Now we wait for the batteries. Anyone has an idea where we can buy a similar wire from? Coated?

  • Donkey

    Like we don't have enough flies as it is.

  • I’m with Donkey on that one.

  • Raven

    Use them to pollinate the planet! And make them differentiate between GMO and natural. No monsanto.

  • Homesthetics

    A glimpse of the future, really fascinating. Thanks for sharing.

    • Michael

      How many tax dollars did that cost?