The Eleventh Entry

We are going to build some things. There's a rocket launcher, an airplane, a car, and all of these run on smoke. The rocket launcher and the airplane use the smoke to push them along and the car uses the smoke to power the car because the smoke goes into a piston which turns the wheel. We've built a parachute (it's doesn't really work well) out of a bag and some cloth and string. We're planning to make a new blog about building.

The drawing below shows a rocket pack that I invented. You can view a larger image by clicking on the image below.