An in depth view on one of the world's greatest physicists, Richard Feynman. The speech done by Zvi Bern (UCLA, Theoretical Elementary Particle Professor; I'm not entirely sure that is who Zvi Bern is--there is little information regarding him on the Internet) talks about Feynman's little drawings that changed the view of how we related/perceived particle physics (specifically what particles are doing while they zip around) completely.

It's a great physics talk and is still fairly watchable to the general public as long as you know what a particle is (electron, proton, neutron, quark, gluon, muon, baryon, etc...). A typical Feynam Diagram would include an electron & positron (anti-matter opposite of the electron) annihilating each other producing a virtual photon that over time becomes a anti-quark and quark pair in the process radiating a gluon. Before Feynman had got the diagrams accepted by the "general physicists public" it was thought that trying to describe such events would fall flat on their face.

If you've ever been amazed as to how Richard Feynman (if you don't know who Richard Feynman is, watch a clip or even a full talk of his before you watch this--you'll be doing yourself a HUGE favor; there are many clips available here on the sift) could explain Physics to the layman so easily, elegantly, completely, and "spell bindingly" capturing your full attention in the process; he did this to physicists as well. He explained with his diagrams easily what was thought to be impossible. That is Richard Feynman (one of my most favorite physicists ever, due exactly to this...). This talk is worth your time.