Bowling balls are perfectly round and made of plastic, urethane and reactive resins. Most balls are made with a combination of materials to achieve the right reaction when thrown down an alley. Modern ...

Even if you haven’t seen the 1996 cult comedy “Kingpin” about bowling and redemption, you can probably imagine Bill Murray’s indelible character Ernie (Big Ern) McCracken: With sweat on his brow and a ...