WATCH: Here's a 300-mph ping-pong cannon (and instructions to build one)
Updated Mar. 5, 2020 1:56 a.m. ET
Brett Smiley
It's the brainchild of science and technology whiz William Gurstelle, a contributing editor for Popular Mechanics, who also explains how to MacGyver one of these cannons yourself if you're handy enough and/or so inclined.
In the explainer, Gurstelle also includes some important (and funny) notes: "I don't recommend you actually try to incorporate it in your table-tennis practice."
This is definitely the coolest cannon we've seen. Since the Taco Cannon, anyway.
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