If you are interested in physics and have not seen Dr. Feynman's 7-part lecture series entitled The Character of Physical Law, you really owe it to yourself to watch them in their entirety [1]. The site's interface has some neat features, such as links into the transcript and notes related to the topic being discussed.
Dr. Feynman delivered these lectures as part of the "Messenger Lectures" [2] series at Cornell University in 1964:
Lecture 1: Law of Gravitation - An Example of Physical Law
Lecture 2: The Relation of Mathematics and Physics
Lecture 3: The Great Conservation Principles
Lecture 4: Symmetry in Physical Law
Lecture 5: The Distinction of Past and Future
Lecture 6: Probability and Uncertainty - The Quantum
Mechanical View of Nature
Dr. Feynman delivered these lectures as part of the "Messenger Lectures" [2] series at Cornell University in 1964:
Lecture 1: Law of Gravitation - An Example of Physical Law
Lecture 2: The Relation of Mathematics and Physics
Lecture 3: The Great Conservation Principles
Lecture 4: Symmetry in Physical Law
Lecture 5: The Distinction of Past and Future
Lecture 6: Probability and Uncertainty - The Quantum Mechanical View of Nature
Lecture 7: Seeking New Laws
[1] Requires SilverLight: http://research.microsoft.com/apps/tools/tuva/index.html
[2] https://en.wikipedia.org/wiki/Messenger_Lectures