Eco-friendly alternatives to fossil fuels are venturing beyond Earth—and into space.

Water rockets work on the premise that ... a tire pump and some cardboard fins. [François Gissy] modified the design but not the principle for his water trike which reached 261 kph or 162mph.

Such projects always hold the potential for entertainingly over-the-top designs, materials ... for charging and launching air-powered water rockets. The process started with a prototype, built ...

This clip has detailed instructions and guidelines that could be used prior to initiating an investigation into simple water rocket design and construction. It explains how rockets work and ...