RoboBees set to create buzz in market

It is perhaps the world's smallest drone. Weighing about a 10th of gram, the little flying machine, dubbed RoboBee, is two centimeters in height. At first glance, it looks just like a mosquito, and a magnifying glass is needed to observe any details.

But the coin-size robot is ready to fly as well as real-life bees. It can flap its two tiny transparent wings at 120 times per second, perch on the underside of a leaf and even "swim" under water, when connected with a nearby power source.

RoboBee is the brainchild of a microrobotics lab at Harvard University. Though still in development, Chen Yufeng, a member of the research team, said it holds huge promise.