Torpedo bats are just the latest innovation in the design of baseball bats, some of which stuck, and others which ... did not.

Many of the Yankees used torpedo bats while posting historic numbers this weekend. Here's how the team started using the oddly-shaped bats and why they're legal.

Developed by a physicist, these bats have their widest part, called the barrel, closer to the player's hands to offer a better chance of hitting the ball on their "sweet spot"