Rocketry Challenge Answered
I don'e know if anybody's seen it yet, but oscarthompson has had a grand idea: a water rocket challenge to mark the 40th Anniversary of Apollo 11.
He has started a group for people who want to work together to put together a scale version of a mission to Mars - three-stage launcher, controlled landing, the works.
He has put together a rough plan here.
Go. See. Partake.