Here's The Science Behind This Un-Spillable Cup

Unbox Therapy took a hard look (and a few swings) at a cup that claims to be un-spillable. Maybe the right word is un-tippable though, because he takes some pretty aggressive swings at this cool device and can't get it to fall over. It's a powerful suction/air-tight seal system.

Why does liquid stay in a horizontally turned straw, but not in a glass?

Solve the Problem of Spilled Drinks with Physics!, The SpillNot is an ingenious gadget that will let you carry an open beverage without spilling it.

SpillNot

SpillNot: The Physics Behind the Slosh – Arbor Scientific

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Here's The Science Behind This Un-Spillable Cup

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SpillNot: The Physics Behind the Slosh – Arbor Scientific