Why does water stick to the glass when pouring?”.

Most of the time when you pour out water from one container to another, it pours out perfectly. But there are also these annoying times that the poured water sticks to the container creating a mess that you should clean up. The inconsistency of how the poured liquid travels is very frustrating especially if you are running late for your meeting and the coffee spills decide to mess your suit.
Now let us explain to you this occurrence for a better understanding.

This occurrence is caused by the Coanda effect which states that
“A moving stream of fluid, when in contact with a curved surface, will tend to follow the curvature instead of continuing to move in a straight line”

Enjoy this video about why water sticks to the glass when pouring or the Coanda effect.



#CoandaEffect #Physics #EducationalVideo

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