Unfortunately, clear half-domes can only be formed in certain sizes, and the closest to the standard bowling ball size of 8.5 inches was 8 inches.

In bowling-ball form, polyester can endure 10 or 15 years of daily play, says Tommy Delutz Jr., a two-time national Professional Bowlers Association champion who now runs the pro shop at Herrill ...

Analyzing a bowling ball's path. A USBC-approved bowling lane has 39 boards, each measuring approximately 2.73 cm (1.07 in). Credit: Simon Ji ...

So it will float. → density of 11-pound bowling ball = 4,994 grams / 5,452 cm3 = 0.92 g/cm3 Meanwhile, a bowling ball with a mass of 12 pounds, or 5,448 grams, has a density of 0.99 g/cm 3.