The impact produces a sonic wave that propagates through the intermediate balls. This shows that the last ball receives most of the energy and momentum of the first ball. The ball on the opposite side acquires most of the velocity of the first ball and swings in an arc almost as high as the release height of the first ball. When it is let go, it strikes the second ball and comes to nearly a dead stop. When one of the end balls ("the first") is pulled sideways, the attached string makes it follow an upward arc. It is also known as Newton's pendulum, Newton's balls, Newton's rocker or executive ball clicker (since the device makes a click each time the balls collide, which they do repeatedly in a steady rhythm). The device is named after 17th-century English scientist Sir Isaac Newton and designed by French scientist Edme Mariotte. The last sphere swings back and strikes the nearly stationary spheres, repeating the effect in the opposite direction. When one sphere at the end is lifted and released, it strikes the stationary spheres, transmitting a pressure or sonic wave through the stationary spheres that creates a force that pushes the last sphere upward. The Newton's cradle is a device that demonstrates the conservation of momentum and the conservation of energy with swinging spheres. JSTOR ( March 2021) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. Animation-timing-function: cubic-bezier(0.69, 0.This article needs additional citations for verification.
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