When Did You Know?

摘要

I "knew" when I was a child playing with airplane models in my backyard and a formation of B-36 bombers flew right over my house.-Burt Rutan (AIAA Fellow), President and CEO, Scaled Composites, and designer of record-breaking Voyager Early one evening in late 1957, my father took his three-year-old son (me) out into the backyard. We looked up into the darkening sky and saw a bright point of light moving far overhead; it was Sputnik 2, history's second artificial satellite.