The Legami Newton's Pendulum is a classic among retro objects for your desk. This evergreen illustrates Newton's laws of motion and consists of five metal balls, each suspended from two threads. When you lift the first ball and let it fall back so that it hits the others, the ball on the opposite side moves with the same momentum as the first. It is said that the constant movement and the sound of the balls hitting each other, thanks to their hypnotic effect, promote creativity, concentration, and relaxation, so you'll have your to-do list ticked off in no time. If only you could tear your eyes away from it...
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