Trope-a-Day: Absurdly Sharp Blade/Sharpened to a Single Atom

Absurdly Sharp Blade/Sharpened to a Single Atom: Mollyblades. With a single-layer graphene sub-nanometer edge with a perpetual resharpening system (proprietary – and very necessary, since an edge that fine will be blunted by damn near anything, including gases), if it is made of baryonic matter, it will be cut. Slash it through the air fast enough, you can see the subtle glow of dissociated air molecules recombining. It’s that sharp.