I need a hydroelectricity project for an eigth grader.
I already got a motor that powers a 1.8v LED. I wanna know the diameter of the wheel that I need [should be within 1 1/2 feet. I'm thinking of powering it with a hand pump that runs for about 20sec.
I also need some ideas on how to make use of the LED. The project is about how we can Hydroelectricity in daily life so Hepl Please :)