Propul~Surf : a screw-propelled snowboard prototype

[EN] : Propul~surf is an alternative to ski tows and snowmobiles. It is a portable device: once packed in a bag, the snowboarder (or skier) can freely go down trails.This propulsion system is based on Archimedes' screw: this is efficient and soft for the environment. This prototype was made in a school contest and tested in Orelle - Val Thorens, France. It won the Olympiads of engineer sciences in France. The first prototype shown is this video was made to check is the screw propulsion was possible. N

• #فناوری_و_رایانه
• #2013
• #si
• #olympiades