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2. Kater's pendulum - Wikipedia

   en.wikipedia.org/wiki/Kater's_pendulum

   A Kater's pendulum and stand. The first person to discover that gravity varied over the Earth's surface was French scientist Jean Richer, who in 1671 was sent on an expedition to Cayenne, French Guiana, by the French Académie des Sciences, assigned the task of making measurements with a pendulum clock.

3. Pendulum - Wikipedia

   en.wikipedia.org/wiki/Pendulum

   "Simple gravity pendulum" model assumes no friction or air resistance. A pendulum is a device made of a weight suspended from a pivot so that it can swing freely. [1] When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position.

4. List of amusement rides - Wikipedia

   en.wikipedia.org/wiki/List_of_amusement_rides

   Pendulum ride: 1954 Fun Slide: 1983 Gravitron: 1954 Gyro tower: Hayride: 1905 Helter skelter: 1940s Hurricane: 1960s Infinity Pendulum ride: 1950s Inversion: Pendulum ride: 1950s Jump and Smile: 1984 Kamikaze: Pendulum ride: 1977 Kiddie ride: 1982 Looping Starship: Pendulum ride: 1952 Loop Fighter: Pendulum ride: 1933 Loop-O-Plane: 1933 Loop ...

5. William Hamilton Shortt - Wikipedia

   en.wikipedia.org/wiki/William_Hamilton_Shortt

   William Hamilton Shortt (1881–1971) was a railway engineer and noted horologist, responsible for the design of the Shortt-Synchronome free pendulum clock, a widely used time standard, employed internationally in observatories in the period between the two World Wars.

6. Newton's cradle - Wikipedia

   en.wikipedia.org/wiki/Newton's_cradle

   This would stand true even in the absence of air resistance, as in a vacuum. There are slight movements in all the balls after the initial strike, but the last ball receives most of the initial energy from the impact of the first ball. When two (or three) balls are dropped, the two (or three) balls on the opposite side swing out.

7. Pendulum (mechanics) - Wikipedia

   en.wikipedia.org/wiki/Pendulum_(mechanics)

   A pendulum is a body suspended from a fixed support such that it freely swings back and forth under the influence of gravity. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back towards the equilibrium position.

8. Play World Class Poker Online for Free - AOL.com

   www.aol.com/games/play/masque-publishing/world...

   World Class Poker. Texas Hold'em, Omaha, 7-Card Stud, 5-Card Draw and more at the most authentic free-to-play online poker room, based on the award-winning World Class Poker with T.J. Cloutier

9. Wilberforce pendulum - Wikipedia

   en.wikipedia.org/wiki/Wilberforce_pendulum

   A Wilberforce pendulum can be designed by approximately equating the frequency of harmonic oscillations of the spring-mass oscillator f T, which is dependent on the spring constant k of the spring and the mass m of the system, and the frequency of the rotating oscillator f R, which is dependent on the moment of inertia I and the torsional ...