Gilfoyle explains to Jared that if he checks up on the Eagle eggs at the museum he might kill them because they are in a state of being alive and not alive as long as he doesn't know the outcome.

Penny asks Sheldon for advice on whether or not she should date Leonard, and during the conversation, Sheldon corrects her use of physics terms. He then explains the Schrödinger's Cat thought experiment to help her think about the situation.

In this clip, Leonard explains on the radio how the Large Hadron Collider is being used to find subatomic particles like neutrinos.

A series of simple machines help collect mushrooms and crush them to produce a drink for Dr. Robotnik.

Bill Nye show us how a circuit works by comparing electrons to water.