Amusement Rides
Many amusement rides provide rotation. A Ferris wheel has a horizontal central axis, and parallel axes for each gondola, where the rotation is opposite, by gravity or mechanically. As a result at any time the orientation of the gondola is upright (not rotated), just translated. The tip of the translation vector describes a circle. A carousel provides rotation about a vertical axis. Many rides provide a combination of rotations about several axes. In Chair-O-Planes the rotation about the vertical axis is provided mechanically, while the rotation about the horizontal axis is due to the centripetal force. In roller coaster inversions the rotation about the horizontal axis is one or more full cycles, where inertia keeps people in their seats.
Read more about this topic: Rotation
Famous quotes containing the words amusement and/or rides:
“If you say to me: “Master, it would seem that you weren’t too terribly wise to have written these bits of nonsense and pleasant mockeries,” I respond that you are hardly more so in finding amusement in reading them.”
—François Rabelais (1494–1553)
“He who rides and keeps the beaten track studies the fences chiefly.”
—Henry David Thoreau (1817–1862)