Whether he's explaining buoyancy or warning of the consequences of evolution denial, there are few things as wonderful and as educational as Bill Nye delivering some scientific knowledge. And so it was a stroke of brilliance that the folks and Gillette recruited the Science Guy for their HowDoesHeShave promotional campaign for director Zack Snyder's Man of Steel.
As you can likely deduce from the name, the razor brand tackles the question that's nagged Superman fans and scholars for decades: No, not how he and Lois Lane could have sex -- rather, how does the Last Son of Krypton shave? For the campaign, it's also posed to Kevin Smith, The Big Bang Theory actress (and neuroscientist) Mayim Bialik and MythBusters hosts Adam Savage and Jamie Hyneman, but I like Nye's "grinding theory" (much better than Smith's half-baked "Kryptonian rocket that brought Superman to Earth theory").
You can see them all on the campaign's YouTube page.