How to Build a Gyroscope

Lay the bicycle wheel on it's side on a flat surface with the axles pointing upwards. As a safety precaution, it's recommended to put plastic spoke guards on the bicycle wheel's hubs. Then, remove the outer nuts on the bicycle wheel's axles to allow enough room for the plastic screw-on handles. Proceed to screw one of the plastic handles onto the bicycle wheel's axle.

Secure the remaining plastic screw-on handle in a vice with the flat side pointing down, and tighten to ensure the handle does not come loose. Using a drill with a drill bit of the proper size, begin to drill a hole vertically into the top of the handle a third of the way in. Screw an eye bolt into the newly drilled hole. Screw the plastic handle into the remaining bicycle wheel's axle.

Locate a wide open area with as little obstructions as possible. This area needs to be at least ten feet in diameter and needs to be completely flat. Locate the direct center of this area; this is where you will placing the rotating stool. Firmly plant all four legs of the stool in the center of the area so the seat doesn't shake at all when sat on.

Seat a volunteer in a rotating stool. Make sure their feet are planted firmly on the ground and they are sitting up straight. Have the seated person hold the wheel with their arms completely outstretched. An assistant will now begin to spin the wheel as fast as they possibly can. After the wheel is spinning as quickly as possible, the seated person lifts up their feet while holding their arms straight out. Tilt the top of the wheel to the left and the rotating stool will begin to rotate to the left. If you were to tilt the top of the wheel to the right, the stool will begin to rotate right.