Teaching Lift to Seventh Graders

> With all of the debate, these days, over what actually creates lift,
> what would be good basic explainations for seventh graders.

Direct them to Chapter 3 of John S. Denker's "See How It Flies,"
freely available online at <http://www.av8n.com/how/htm/>,
with particular attention to sections 3.6, 3.7, and 3.10.



-- Gordon D. Pusch