Intermediate Projects

Call it a Vortex, whirlpool, tornado, hurricane, dust devil, water spout... whatever you call it, it happens a lot in nature.


This Air Rocket goes higher than the tallest trees.


Here is a simpler water rocket launcher design that's easier to build and gives kids a tactile understanding of "pressure".

Wind-up Dragonfly helicopters fly higher than the tallest trees. Here is a simple version.

I'd like to know how these projects go for you. I'm happy to answer questions about them. Feedback from you is an important way for me to know what works and what needs clarification.