"David Megginson" wrote in message
.rogers.com...
Steve Robertson wrote:

There aren't any airplanes that flap their wings, either.

You've never heard of the ornithopter, then:


Maybe he has, maybe he hasn't. He didn't say there were no aircraft that
flap their wings, he said there were no airplanes that flap their wings. As
an airplane is an aircraft that produces lift by driving a fixed wing
through the air, he's right.