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https://www.wired.com/story/floating-metal/?utm_brand=wired&mbid=social_twitter&utm_medium=social&utm_source=twitter&utm_social-type=owned
Metal Wants to Float, Once It’s Etched With a Fricking Laser

An absurdly powerful laser can trap an air bubble in a layer of metal, so that it’ll float no matter what.

Nick Houde
Source: Metal Wants to Float, Once It’s Etched …
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