How a differential gear works

Awesome 1930’s era video explaining in detail how a differential gear on a car allows the wheels to turn at different speeds when going around a corner – if you don’t already know how it works (and I’ve got to admit that I didn’t) then I promise you that a light bulb will go off over your head when you see how simple and clever it is!

Next “limited slip differentials” – knowledge awaits!

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