Calculus 3 Lecture 12.3/12.5: TNB (Frenet-Serret) Frames, Curvature, Torsion, Encapsulation

From a channel Lumen includes in full: Professor Leonard records his full college lectures in calculus, statistics, precalculus and differential equations; widely used as a complete free alternative to taking the class.

A 157-minute video from Professor Leonard's catalogue; the title names its topic.

Video by Professor Leonard, played through YouTube's embedded player.