A few French students decided to take their homework to the next level. To start they built a simple structure, made of wood over the course of three days. A rope went from one side of the upper bar to the other provide enough length to attach with a harness. Then they dug a meter deep hole in the ground and put a PVC tube with rolling in it. A smaller structure was placed for the rope to wrap around which was then fixed on the mast. Then the two pulleys are placed to lead the rope and control the flow. They call it the “Centrifugal”.

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