Video: How to make a helicopter so simple
Helicopter, helicopter (Helicopter) is no longer a strange concept for everyone. But the construction of mini helicopters at home is not everyone knows how to do.
Helicopter, helicopter (Helicopter) is no longer a strange concept for everyone. But the construction of mini helicopters at home is not everyone knows how to do. You only need 1 bottle of water to remove, the ice creams are all eaten and you can build airplanes, it sounds very magic right?
With just one bottle of water removed, the ice creams were eaten and they were able to build airplanes.
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Update 15 December 2018
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