Schlieren Image of a Hair Dryer and Ball

Schlieren Image of a Hair Dryer and Ball

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Credit: EDWARD KINSMAN/SCIENCE PHOTO LIBRARY

Caption: A schlieren image of a hair dryer and a ball trapped in the airflow by Bernoulli's law. This law of fluids states that faster moving fluids like air have a lower pressure. The shape of the airflow around the ball keep the ball positioned above the jet of hot air. The schlieren image identify areas of different temperature by using the change in the index of refraction of a fluid due to a change in temperature.

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Keywords: air flow, bernoulli, bernoulli'ss law, blow dryer, blowdryer, density, flow visualization, fluid dynamics, hair dryer, hairdryer, heat, heat flow, index of refraction, invisible, law, optical, optics, photograph fluid dynamics, physics, refraction, schlieren, schlieren image, schlieren photography, thermal, thermal plume, thermodynamics

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