Monday, November 15, 2021

Physics Demo Time (or Cool Party Trick ... your choice) - Opening a Can Drink with a Sharpie!

All hail the YouTube algorithm for bringing this four-year-old video to me.

There isn't much too this demonstration. The thin aluminum top of a pop can is pressed upon back and forth a few times, and the can tab 'explodes' outward...loudly.

I assume this works because the designed failure point around the can tab is relatively weak - weaker than the rest of the solid top -  and the pressing back and forth on metal stresses that point causing the failure.

Neat trick and one I think I'll give a try.

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