Gemstone Polisher

The plan was to make a solar powered gem polisher.

Solar power worked very well from the window inside the room.  Night time would be a problem.

During construction, the invention was tried out using  another motor as a dynamo and turning it with a big wheel.

One of the goals was to make more than one tumbler.  A gear train was used to get enough room for the other container.

Two questions: How to attach the containers?  How fast do the containers rotate? Answers: Rubberbands on connectors in pulleys. Once each 7 seconds.

Water power was tried also but there was not much speed. Wind from the room fan worked out much better.

Water power, Kid power, Wind power, and Solar Energy each were used today. eLab LEGO Projects at Miller Elementary LEGO Links of Linda Hamilton 2000 -2001 Linda Hamilton LEGO Links of Linda Hamilton  http://netapps.marshall.edu/lego