Feynman on Mathematics and Physical Law
Tinkerin' Thinkers · Lecture · 56 min · 2011 · YouTube title: Richard Feynman - The.Character.of.Physical.Law - Part 2 (full version)
Why it's here
Recommended as a lecture so clear that no formal training is needed to follow it, and cited on why math is needed for physics.
What it covers
Part 2 of Richard Feynman's Messenger Lectures at Cornell, The Character of Physical Law, on the relation of mathematics to physics. He explains why understanding nature requires mathematics.