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In classical mechanics, the rotation of a rigid body such as a spinning top under the influence of gravity is not, in general, an integrable problem.There are however three famous cases that are integrable, the Euler, the Lagrange, and the Kovalevskaya top, which are in fact the only integrable cases when the system is subject to holonomic constraints.
A rattleback is a semi-ellipsoidal top which will rotate on its axis in a preferred direction. If spun in the opposite direction, it becomes unstable, "rattles" to a stop and reverses its spin to the preferred direction. For most rattlebacks the motion will happen when the rattleback is spun in one direction, but not when spun in the other.
A spinning top, or simply a top, is a toy with a squat body and a sharp point at the bottom, designed to be spun on its vertical axis, balancing on the tip due to the gyroscopic effect. Once set in motion, a top will usually wobble for a few seconds, spin upright for a while, then start to wobble again with increasing amplitude as it loses ...
The lore of the Pambaram, a symbol of cultural pride, never stops inspiring, fusing skill, community spirit, and the passing down of ideals through the generations to ensure its legacy lives on. Moreover, Pambaram festivals became a cornerstone of community life, where the spectacle of spinning tops brought together people from all walks of life.
The stem may be used as a handle to pick up the top, and is also used to spin the top into motion. When a tippe top is spun at a high angular velocity, its stem slowly tilts downwards more and more until it suddenly lifts the body of the spinning top off the ground, with the stem now pointing downward. Eventually, as the top's spinning rate ...
The quotes from the World Trade Center site can be found in September Morning: Ten Years of Poems and Readings from the 9/11 Ceremonies New York City, compiled and edited by Sara Lukinson.
Players wrap their tops in thin, 60-cm long cords which they use to launch the tops onto the playing surface of a canvas fabric sheet partially stretched over a bucket or similar items. The winner is the player whose top spins the longest or successfully knocks the opponent's top out of the playing area.
"Okay, you have to stop the Q-tip when there's resistance." Here is the moment immortalized on YouTube: There you have it, Chandler's best quip -- from the one who played Chandler himself.