Due to required maintenance, a shuttle service will take visitors to our rear entrance on Gateway Blvd. For the OMNIMAX® Theatre, enter through the front entrance.
Try using different types and sizes of paper to create your pinwheel, like newspaper, giftwrap or stock paper. Which one spins the best? Keep in mind that if your paper is too large, it will hit the party hat as it spins.
Grab a fan and ask a helper to join you. Wearing your pinwheel hat, stand in the middle of a room, close your eyes and ask the helper to walk around the perimeter of the room while holding the fan. What happens to the pinwheel when you stand still? What about when you face the direction of the wind from the fan? Try holding out your arms—does this make it easier to detect the direction of the wind?
When you move, you generate kinetic energy. This energy pushes the flap of the pinwheel on the hat, causing it to spin. If you move faster, the pinwheel rotates faster. If you slow down, so does the pinwheel.
Wind turbines work in a similar way. These machines use the kinetic energy of wind to generate electricity. The blades of a wind turbine are attached to a rotor, which is connected to a generator via a driveshaft. The wind spins the blades, which spin the rotor, which then spins the generator. The generator contains magnets and metal coils. When it spins, it generates high-voltage electricity.
Each wind turbine has a yaw drive that allows the turbine to rotate. It also has a wind vane, which sends information about the wind speed and direction to the yaw system. This allows the turbine to change direction to face the wind so that it can generate as much electrical energy as possible.
The electricity generated by the wind turbine travels through transmission lines to a transformer station, which lowers the voltage of the electric current so that we can safely use the electricity in our homes.