Leonardo da Vinci invented the bicycle and the helicopter.
Because people wanted the ability to hover in mid-air.
He did not invent it he 'visualised' it and drew his impression
The aeroplane he sketched was supposed to flap its wings.He also invented the helicopter.
He invented a spiral contraption that is similar to a modern day design of the helicopter and also built wings that he thought could make a person fly but later realized that birds have hollow bones whereas people have heavy, solid bones. Other than that, I don't know... Hope I helped.
Igor Sikorski was well on the way with inventing the first practical helicopter then
I am wondering where was helicopter invented?
Nobody invented the helicopter in 1918
Attempts to create helicopters can be traced back to Leonardo da Vinci, but the first working prototype helicopter, the VS-300, was invented by Igor Sikorsky (Russian/American) in 1939. The next model he designed was the R-4 in 1942, which was the world's first mass produced helicopter
An engineer, Igor Sikorski, invented the helicopter.
No African American invented the helicopter. The first practical helicopter was invented by Igor Sikorski, a Russian American.
The first Helicopter was made by Igor Sikorsky, in 1939.
Igor Sikorsky invented the first practical helicopter around 1940
Igor Sikorsky invented the helicopter.
No, it was not possible. William McKinley served in office from 1897-1901. The first helicopter wasn't invented till 1939, 38 years after his assassination.
no
Igor Sikorski invented the first practical flying helicopter.