Streaming videos that demonstrate and attempt to EXPLAIN how something works - good, bad, or otherwise!

[Rooster_Ties]

I must regularly watch a good smattering of YouTube videos that demonstrate things, and explain them -- because I'm forever seeing such things in the suggestions YouTube's algorithms serve up for me from my viewing habits.  I'm guessing some of that comes from the various Reddit sub-forums that I subscribe to (especially /r/mechanical_gifs - which often have better related YouTube videos in the comments -- and also /r/TIL - which stands for "Today I Learned").  And gosh knows there's plenty of music-related 'explainer' videos I stumble on a lot (and usually watch).  In any case, here's a wild one to kick off this thread.

Feel free to post any sort of "explanation/demonstration" video you like here -- good, or bad -- and of course, let's discuss...

Decoding the (Swindon) Magic Roundabout (actual discussion specifically of the certifiably insane Swindon Roundabout starts at the 6:00 minute mark, exactly)

 

Edited March 6, 2020 by Rooster_Ties