Centrifugal blowers, especially those found in factories that move a lot of gases and air around, may have played a part in the creation of theatrical fog machines. The blowers have several blades that spin and move air or gas rapidly from a an exhaust pipe up through the roof of the building or into another part of the factory where the gas is used for the production of a product or used as fuel.
If you are looking for an entertaining outdoor toy that gets your child moving, a scooter board will give them countless hours of fun. It is not that difficult to make a scooter board on your own using basic tools and a few supplies from a hardware store. Here are some instructions for you to follow when making a scooter board for your child.
Materials You Will Need
3/4"-1" thick piece of wood cut into a square with about a foot of length on each side 1"