Hobby shop , like the ones that sell model planes and cars.
The wind should be able to power any size windmill.
go to windmill park with a giant crain and then pick the windmill and drop it to your school.
see your physics book
windmill
Newton did not create a windmill model. Isaac Newton was a renowned mathematician, physicist, and astronomer known for his contributions to the field of classical mechanics and the law of universal gravitation. His work laid the foundation for modern physics.
Make a small prototype of a "Helical" windmill which is very simple and innovative if you can get a fabricator to work for you. And yes...a helical windmill is one which rotates(and in the same direction) irrespective of the wind direction.
The electrons typically rotate around the nucleus in the solar system model.
One Dutch model with the surname Stone is Jasmijn Stone. She has gained recognition in the fashion industry and has worked with various brands and magazines.
First choose a model that you need to make. A windmill and pizza box oven are some good examples. Get the necessary materials. Get aÊdiagram and a guide that will help you make your model.
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Attach a suzan bearing to it :)
Balsa wood usually