A rocket stove works by having such a strong draft created by the heat rising up the chimney that the flames can’t crawl up the fuel and burn in the open air, creating a controlled burn zone.

Lay Out the Foundation: Begin by creating a solid foundation for your rocket stove. Start by laying two bricks side-by-side ...

The original launch system had one button for building up air pressure with a second big red button of doom for launching the rocket. The problem was a complete lack of user feedback; all the kids ...

This reduces resistance and helps the rocket cut through the air. However, I didn't think Greg's wafer cone would make much of a difference at that jaunty angle. ‘Duffy’ (Cathy Shipton): What ...