http://nobelprize.org/ ... (Gross)
http://nobelprize.org/ ... (Wilczek)
Gross was the first one I have watched. I highly recommend you to look at it! David explained how amazing their discovery was in the context of the 1960s.
It was a period of experimental supermacy and theoretical impotence. The experimentalists were making progress all the time while the theoreticians had no clue how to explain the obscure data about strongly interacting physics. Freeman Dyson declared in 1960:
- The right theory of the strong force won't be found in the next 100 years.
I've also listened to Frank Wilczek's talk - it is complementary in various respects - but someone else should describe it instead of me.