This piece of engineering is so simple and elegant, you’ll want to build a pretty serious water ... of your rocket. The main portion of the build is made out of plastic soda bottles (2 liter ...

Build and launch a rocket powered by a chemical reaction between baking soda and vinegar! This exciting experiment demonstrates how chemical reactions can create pressure, and how that pressure can be ...

Al Williams and I were talking about water rockets on the podcast the other ... It sounds really easy: you put some water in a soda bottle, pressurize it a bit with air, and then let it go.