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Pressure of Light Can Move Liquid

Jet of liquidScientists have figured out how to create a jet of liquid with nothing but the power of light. They shined a laser beam through a soapy liquid, producing a long jet that eventually broke up into droplets.

"Light is actually pushing onto us slightly. This effect is called radiation pressure," Zhang said.

This gentle pressure generated by photons—particles of light—ordinarily goes unnoticed. But the liquid used in the new experiment—a soapy mixture—has such an incredibly weak surface that even light can deform it. It created a phase change that's a bit like how shampoo turns to soap when you add water, the scientists explained.

Link & Image: LiveScience
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