Correction for the weight of a Billiard Ball
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How heavy is 0.0000000000150 megatonnes?
It's about one-tenth as heavy as a Billiard Ball
The weight of a Billiard Ball is about 0.000000000163009757968750 megatonnes.
(American-style, WPA specifications)
Per the World Pool-Billiard Association, a billiard ball weight must weigh between 0.00000000015592237718750 megatonnes and 0.000000000170097138750 megatonnes. 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.