A new Symphony of Science has just been released: "The Quantum World!"
This one is more upbeat than the others, and features my pal Brian Cox, as well as a few other familiar faces... including a delightful end quote by Richard Feynman which I think can be rephrased to say why scientists love doing what they do: science answers the questions posed by the imagination.
You should watch all the Symphony of Science videos. They're delightful.
Tip o' the boson to Gia.