The Exploratorium has done a lot of fun stuff with the physics of baseball, including a whole website devoted to the science of baseball (where’s the sweet spot on the bat? What are baseballs made of?). One of our senior artists, Dave Barker, has also created the Bat Marimba (photo above). I’ve just posted a new episode of my Science Teaching Tips podcast about the physics of baseball (listen to it here: Hey, batter batter!) with a beautiful performance of the bat marimba. Below is a YouTube video of Dave talking about the physics of baseball and of the amazing Walter Kitundu playing the marimba.