It was the first human-powered airplane.
As a replaceable alternative to space satellites used in relaying
voice, television, or Internet signals.
The male guards the female and their fertilized eggs from
The more the flyer weighs, the more power it needs to fly.
But power sources like batteries only add more weight. So
the engineers must design a more efficient wing to generate
Directly underneath the glider, in order to push air up into
the wing and generate lift.