Coandă effect

A spinning ping pong ball is held in a diagonal stream of air by the Coandă effect. The ball "sticks" to the lower side of the air stream, which stops the ball from falling down. The jet as a whole keeps the ball some distance from the jet exhaust, and gravity prevents it from being blown away.

Meaning

Proper Noun

The tendency of a fluid jet to be attracted to a nearby surface.

Origin

Named after Romanian aerodynamics pioneer Henri Coandă, who was the first to recognize the practical application of the phenomenon in aircraft development.

Modern English dictionary

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