Date: Sat, 12 Jul 2008 11:33:12 -0500
> All evidence from Da Vinci until 1900 suggested birds were somehow
> special as regards heavier than air flight.
Ignoring bats and bumblebees, birds *were* special. They were the only ones that had structures that generate lift. So anyone claiming to fly was obliged to demonstrate they could. The same goes for anyone claiming to do anything else we suspect isn't possible.
-- RoyReceived on Sat Jul 12 2008 - 18:33:12 CEST