Spill-Proof Cups Aren’t Magic. They’re Physics!

Spill-Proof Cups Aren’t Magic. They’re Physics!
There is a popular mug that doesn't spill. Here's how it might work, along with an estimate of the maximum tipping force to knock it over.

http://ift.tt/2jZG41p February 2, 2017 at 12:00AM
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