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Is 0.0577 kilograms as heavy as a Billiard Ball?

It's about one-third as heavy as a Billiard Ball
The weight of a Billiard Ball is about 0.163009757968750 kilograms.
(American-style, WPA specifications)
Per the World Pool-Billiard Association, a billiard ball weight must weigh between 0.15592237718750 kilograms and 0.170097138750 kilograms. 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.
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