This photo is taken from "The Einstein Approximation." During the half hour, Sheldon continues to search for the answer to a physics problem.

The Big Bang Theory Season 3 Episode 14 Quotes

I haven't seen him this stuck since he tried to figure out the third Matrix movie.


Wolowitz [about Sheldon]: How long's he been stuck?
Leonard: Intellectually about 30 hours, emotionally about 29 years.
Wolowitz: Have you tried rebooting him?
Leonard: No, I think it's a firmware problem.