An Explanation Why Ketchup And Other Non-Newtonian Fluids Are So Hard To Pour

Educator George Zaidan explains why ketchup and other non-newtonian fluids are so difficult to pour out of the bottle in this Ted-Ed lesson animated by TOGETHER .

Ever go to pour ketchup on your fries…and nothing comes out? Or the opposite happens, and your plate is suddenly swimming in a sea of red? George Zaidan describes the physics behind this frustrating phenomenon, explaining how ketchup and other non-Newtonian fluids can suddenly transition from solid to liquid and back again

Now that there’s an explanation why ketchup is so difficult to pour, here’s a tip for an easier pour from DirtFarmerJay.

Lori Dorn
Lori Dorn

Lori is a Laughing Squid Contributing Editor based in New York City who has been writing blog posts for over a decade. She also enjoys making jewelry, playing guitar, taking photos and mixing craft cocktails.

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