Shining a light on the mechanics of embryo development

In 1922, French physicist Léon Brillouin predicted an interesting phenomenon—when light is shone on a material, it interacts with the naturally occurring thermal vibrations within it, exchanging some energy in the process. ...

New strategy uses ionic liquids to change laser colors with ease

Lasers are intense beams of colored light. Depending on their color and other properties, they can scan your groceries, cut through metal, eradicate tumors, and even trigger nuclear fusion. But not every laser color is available ...

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