Historian David McCullough has told the story of Wilbur Wright, the bike mechanic and innovator of heavier-than-air flight at the turn of the last century. McCullough describes how Wilbur used everything he could humanly muster—his mind, body, and soul—to coax his gliding machine into flight. The grainy old film, shot from a distance, fails to capture his grit and determination. But if we could zoom in, we’d see his muscles tense, his mind focus, and the very spirit of innovation flow as man and machine soared into the air for the first time,
