Ever wonder how cars can make turns without skidding? Well, you have engineers to thank – more specifically, those who invented the differential (a device which allows the wheels of a car to turn at different speeds).

This vintage engineering tutorial, made by the General Motors, clearly and engagingly explains how differential gears work. Posted on YouTube last year, it has now received close to a million views – not bad for something made in 1937!

Watch and be enlightened (the tutorial starts around 1:50):

Image via CGoulao/Flickr

Filed under: e-News, e-Videos, Mechanical, Transportation

Tags: Cars, Engineering in History, Mechanical, Transportation