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:
“Business is, emphatically, the amusement of Americans, and, to be in keeping with their character, every thing written for their amusement should partake of the useful.”
—H., U.S. women’s magazine contributor. American Ladies Magazine (February 1828)
“So long as a man rides his Hobby-Horse peaceably and quietly along the King’s highway, and neither compels you or me to get up behind him—pray, Sir, what have either you or I to do with it?”
—Laurence Sterne (1713–1768)