This clip can be used as a starting point to discuss the Big Bang theory. Pupils can discuss and explain how light unlocks the fact that the light is red-shifted when objects are moving away from ...

Here's the ending of The Big Bang Theory explained, what that finale says about ... Bernadette and Howard get married and ...

Johnny Galecki played Leonard Hofstadter on The Big Bang Theory for 12 whole seasons, charming the viewers with his quirks, an unusual friendship with Sheldon Cooper, and a heartwarming romance ...