Jun 162024
 
helicopter, berliner

A helicopter but not the 1922 helicopter

First helicopter flight took place in 1922. Henry Berliner demonstrated the craft, built by his father Emile Berliner, to the United States Bureau of Aeronautics. Children can find out how helicopters work by watching: https://www.youtube.com/watch?v=YJBhWVDArLo.

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