These used to be hard to come across - they were on the internet on, I think it was 'Google Videos' back in the day, and then disappeared, only to resurface on

These used to be hard to come across - they were on the internet on, I think it was 'Google Videos' back in the day, and then disappeared, only to resurface on Youtube at some point a little over a decade ago. When they resurfaced I immediately ripped them and saved them, just because of how incredible of a show they are. It's all info I could rehash from memory at this point but I still go back and watch these sometimes just to witness the spectacle of Feynman lecture. The way he speaks, you almost feel like you are getting an understanding of how he thinks as he explains things, and that is the real lesson to take in. The only other lecture videos I think I have rushed to rip and save like that are the Richard Hamming lectures ("Learning to Learn").