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.

In hitting a franchise-record nine home runs on March 29, including becoming the first team in MLB history to homer on the first three pitches they saw, the New York Yankees didn't merely torpedo the Milwaukee Brewers' team ERA.