My bowling-ball education might have stalled early on were it not for the cutaway diagrams included in most spec sheets. These illustrations reveal the hidden guts of balls, showing a dazzling ...

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 ...

He wanted to be prepared. So he sent Patrick Doherty, director of football operations, out to buy a bowling ball. The cheapest non-foam bowling ball from Walmart goes for $54.95. When Doherty went out ...

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.

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.

Manufacturers use this part of the bowling ball to fine-tune its final weight. Heavy 7-kg bowling balls are quite dense, but balls weighing 4.5 kg or less have such a low density that they can ...