Correction for the weight of a Billiard Ball
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How heavy is 0.00149 tons?
It's about eight-and-a-half times as heavy as a Billiard Ball
The weight of a Billiard Ball is about 0.0001796875 tons.
(American-style, WPA specifications)
Per the World Pool-Billiard Association, a billiard ball weight must weigh between 0.000171875 tons and 0.0001875 tons. 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.