Optica 8, 577-585 (2021) Researchers at Russia’s ITMO University developed a laser paintbrush that paints paintings without using paint. (Try saying that three times fast.) The laser-painting tool is actually more of an etching tool, creating microscopic structures in metal that reflect select wavelengths of light that correspond to yellow, red, and o… Click below to read the full story from How To Geek
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Researchers Painted with Lasers Because Lasers
