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Ningbo Qinghua Science & Education Equipment Co.,Ltd. is the member of the teaching apparatus line association , being subordinate to the National Education Ministry , and the leading enterprise in ZheJiang teaching apparatus . 

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Structure and working of newtons cradle balance balls
The newtons cradle balance balls have undergone several renovations over the years. However, the basic outline remains the same and is very simple.
How newtons cradle balance balls work
Each ball has the same properties (size, weight, mass and density) and is suspended by two lines of equal length. Lean from either side of the wireframe to form an inverted bottomless triangle with the ball. They also help limit the pendulum's motion to a single plane parallel to the frame bars.

newtons cradle balance balls

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