The physics behind the beverage can tab - GIF and video

The physics behind the beverage can tab by Professor Bill Hammack of the University of Illinois.

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Full 11:38 video:
https://www.youtube.com/watch?v=hUhisi2FBuw


Previously:

https://www.homemadetools.net/forum/...515#post139353
https://www.homemadetools.net/forum/...909#post124696
https://www.homemadetools.net/forum/...179#post115843
https://www.homemadetools.net/forum/...840#post133521

Interesting. It takes a very high level of control during the manufacturing process to make something so simple.