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The carousel sits on top of a flat platform covered with rollers. These rollers work like large ball bearings, allowing the carousel to turn around in a circle. At the centre of the platform is a large electric motor, which turns the carousel. The same motor also provides the energy to move the horses up and down. Older carousels were turned by steam engines and, before that, by cranks.
The Bevel Gear
The top level of the carousel has a canopy. This canopy serves a decorative function, but it also plays a more important role in the carousel. In the middle of the canopy is a large stationary gear called a bevel gear. Rods radiate out from the centre, where they mesh with the gear. As the carousel turns around past the still bevel, it spins the rods.
Moving the Horses
Each rod has one or several hooks on it. The horses are suspended from these hooks. As the hooks move around in the circle, they pull the horses up and down. Because the hooks move in a circle, they also make the horses rock back and forth, creating a galloping motion.
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