Balance balls of Newton

The balls Newton are small metal balls that are a part of Newton's cradle. Named after Sir Isaac Newton, one of the most important physicists from history, born in 1643 in England.

Newton's cradle - also called Balance Balls of Kinetic Balls called - is one of the oldest and most interesting physics toys with which you can demonstrate the 3rd Law of Newton (The Third Law of Motion). The 3rd law of action-reaction, or "the Law of Conservation of Energy."

Newton's cradle is an example of simplicity and design inspired by the conservation of energy. It consists of a series of usually 5 pendulums which are attached to each other, or rather hang. Each pendulum consists of a small metal ball that "hangs" on a metal frame by means of two wires of the same exact length. If the threads do not have exactly equal lengths, the balls are not in balance. You let the first ball at the 2nd bounce and you see that the result is that the second, third and fourth death still linger, but the last ball (5th) road winds with an equally big swing as the 1st had. The energy is thus transmitted through the intermediate balls. Then, when the 5th ball comes back again, and deflects against the 4th, this phenomenon is repeated in the opposite direction. And so on .... In an "ideal" version of Newton's cradle were the balls should remain topstitching.
Instead of 5 here be used 9 balls. The effect is the same.