annoyedfish Uncategorized February 18, 2018 1 Minute tilthat: TIL Obsidian can be made into a scalpel with a cutting edge of 3 nanometers. A strand of DNA is 2.5 nm, a sheet of paper 100,000 nm via reddit.com Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading... Related Published by annoyedfish View all posts by annoyedfish Published February 18, 2018
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