How Differential Gear Works | QUOTED

This is NOT the full video, the full video has 4 useless minutes in the beginning.. and I was looking around in all the internet to understand how it works, and I opened that video a lot of times , and i closed it , I thought that it does not talk about the differential, but accidentally I discovered that it talks about it after 4 min, so I make this useful CUT.. the original full video link