We just came to know from our resources that a Japanese researcher called Hiroshi Liu has developed a robotic hummingbird, which is very close to real and there is one more amazing feature that it can freely wave in mid-air by rapidly moving its wings with an impressive speed. It is powered by a small motor with four wings installed in it.
The cost of this humming bird may vary till 2011; current cost is round about $ 2 million dollar, its weight is 2.6g and is more stable than helicopter with a micro camera installed in it.
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