Scatterings
Did You Know?
Using light to freeze supercooled water.
A flash of laser light creates a bubble in water, which begins the process of turning the water to ice.
Water can be cooled to below its normal freezing point (0° C) without turning to ice if there is no place for ice crystals to start forming—in other words, no nucleation site. Researchers in the past created a nucleation point using sound to generate bubbles, which form nucleation sites when they collapse. The process is difficult to replicate, however—which makes investigating it even more challenging.
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