Correction for the weight of a Billiard Ball
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How heavy is 29,800,000 grains?
It's about 10,000 times as heavy as a Billiard Ball
The weight of a Billiard Ball is about 2,515.6250 grains.
(American-style, WPA specifications)
Per the World Pool-Billiard Association, a billiard ball weight must weigh between 2,406.250 grains and 2,625 grains. According to legend, the difficulty in obtaining elephant ivory for the manufacture of billiard balls in the 19th century inspired the search for a replacement material, which led to the development of the first industrial plastic.