Few people experience science with as much joy and love and enthusiasm as Destin Sandlin. His Smarter Every Day YouTube channel is a medley of head-scratching, “huh”-inducing, brain rattling videos about science all of which, he presents with delightful ease and clarity. He’s a rocket scientist who makes rocket science, among other things, as digestible as algebra (and infinitely more fun).

Now all that being said, this video still confounds me. I understand how it works, but each repeated viewing boggles my mind in equal measure. That’s the great thing about Destin’s videos and maybe about science more generally: The wonder doesn’t stop once you know the trick. So take that -- magic. This round goes to physics.