How does the transistor work? Well, very accessible video explanation

I think almost all representatives of the community understand how the transistor works (and not only it). Nevertheless, I propose to evaluate the explanation of the operation of the transistor (as well as semiconductors and others) presented by YouTube user 1vertiasium. The video is English, but the explanation is so colorful that everything is clear.



It seems to me that if such a video would be shown at school, even the most distant from school, careless students would understand what was happening.

')