Rubber band energy

I made two rubber band powered cars. They work really well. Here are some photos…

1st rubber band-powered car
1st rubber band-powered car
Detail of hook, made from a piece of paperclip hot glued onto bamboo skewer
Detail of hook, made from a piece of paperclip hot glued onto bamboo skewer
Two similar cars, which we race.
Two similar cars, which we race.

The one with smaller wheels accelerates a lot faster, but doesn’t go as far as the one with the big wheels.

This video shows one of the cars, with a passenger. It goes rather faster on smoother ground, and not carrying anything on top.

In a few days I will be posting a tutorial for the rubber band engine that I used.