Helicopters & Flying Saucers

Flight captured Leonardo's imagination. He drew flying machines like birds. He also sketched spinning wings. He drew rocket launchers and catapults. Make a flying top inspired by Leonardo's drawings. Make a Rotopult for safely launching wafers of corks Frisbee-style... Leonardo's vision channeled through the ingenuity of Neil Downie*.

*Ink Sandwiches, Electric Worms ©2003 Johns Hopkins University Press pp140