Human Powered Aircraft

All human-powered aircraft built thus far must be flown in calm air, so flights are usually made at dawn or dusk, when the wind is as still as possible. In this half-light, flight preparations are made in silence. No, this is not a rule; no one has told the humans to hush. But all involved seem to sense that even the smallest reverberation of voice waves in the air might tear a wing, might ripple destruction onto the thing they’ve built, together. Or, at least, they sense the irrational fear words might—however improbably— ruin all this.

Read More