Humans don't have hollow bones like birds do, so how big would our wings have to be to lift us off the ground?

Brave New World" is a political thriller full of intensity, action and heart that defines who Sam Wilson is as Captain America.

He can only fly because Sam Wilson gave him his old mechanical wings. He’s not any kind of human/falcon hybrid, a mad scientist’s experiment (at least that we know of). But who knows what will ...