Is 410,000,000,000 nanograms as heavy as a Billiard Ball?
It's about two-and-a-half times as heavy as a Billiard Ball
The weight of a Billiard Ball is about 163,009,757,968.750 nanograms.
(American-style, WPA specifications)
Per the World Pool-Billiard Association, a billiard ball weight must weigh between 155,922,377,187.50 nanograms and 170,097,138,750 nanograms. 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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