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Lasers
SciShow Tangents
Using Lasers to Make Contact Lenses
Scientists used an optical laser to create extreme heat and pressure so that they could accomplish what alchemists had long tried to achieve. Just on a nanoparticle scale, they were able to convert lead into gold. So could either be scientists crafting gold plated armor for bacteria using lasers, or scientists making contact lenses that can shoot lasers?
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