HackerTube / Video
How Differential Gear works (BEST Tutorial)
ConceptVBS
A 1930s Chevrolet training film explaining the principles and development of the differential gear. It builds the idea step by step from first principles to the finished mechanism.
HN loves it as an example of old-school instructional film that makes how a differential works fully understandable in clear, simple language.
5 Hacker News mentions · 2013–2020