How a laser can be powerful enough to clear rust from a metal surface but also gentle enough to (mostly) eliminate ink from a piece of paper without setting the paper on fire

Name: How a laser can be powerful enough to clear rust from a metal surface but also gentle enough to (mostly) eliminate ink from a piece of paper without setting the paper on fire
Uploaded: 2023-07-27T13:40:09.000Z
Duration: PT15.061S
Channel: chemicalreactiongifs
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