math visualization
10:20Feynman: 'Greek' versus 'Babylonian' mathematics
377K views • 14 years ago
TehPhysicalist
A clip of Richard Feynman contrasting the Greek and Babylonian traditions of mathematical reasoning. It compares the axiomatic approach of mathematicians with how physicists use mathematics.
5:37Feynman: Knowing versus Understanding
2.7M views • 14 years ago
TehPhysicalist
A short clip of Richard Feynman on the difference between merely knowing how to reason mathematically and understanding why physical theories work. He discusses holding multiple equivalent ideas and guessing new laws.
6:33The Biggest Ideas in the Universe: Introduction
384K views • 6 years ago
Sean Carroll
Sean Carroll introduces his video series on the biggest ideas in physics, such as symmetry, space and matter, as informal discussions with follow-up Q&A videos. This is the short opening video of the series.