Aaron Leanhardt, the former Michigan physics professor who got his PhD at MIT and was part of the Yankees organization for six-and-a-half years, had a simple question he was trying to answer when coming up with the idea for the new torpedo-shaped bats five of the team’s players are using this season.

Jeff Passan joins "Get Up" to break down the science behind the torpedo bats the Yankees have adopted and why they are allowed by Major League Baseball.

Standing in front of his Yankee Stadium locker on Sunday, Anthony Volpe presented two bats for inspection. In his left hand, the Yankees shortstop displayed one he had used last season; in his right,

"Torpedo" bats.The Bronx Bombers tied an MLB record ... Jr. said after his multi-homer game on Sunday."I don't know the science of it … I think I still hit the ball the same, like, exit velocity ...

Torpedo bats drew attention over the weekend when the New York Yankees hit a team-record nine homers in one game