In the The Big Bang Theory episode (Season 1, Episode 9), Sheldon and Leonard find themselves at odds after being invited to present their joint research paper, “Paradoxical Movement-of-Inertia Changes Due to Putative Super Solids,” at a physics conference. Key Plot Points

Sheldon stares intensely at Leonard and makes a humming sound, claiming his head-blowing attempt was working.

In the opening scene, the guys demonstrate a complicated way to turn on a lamp using a laptop signal sent around the world via the internet, simply "because we can".