The Sharpest Object In The World Can't Cut Anything

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Scientists like to measure things, but they've had a heck of a time doing that with sharpness. And even if no one agrees on exactly how to measure it, our search for better tools has recently led to some of the sharpest objects we’ve ever created.

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Images:
https://commons.wikimedia.org/....wiki/File:Crater_kni
https://scienceofsharp.com/2021/06/15/dual-grit-sharpening/
https://www.researchgate.net/f....igure/Artificial-sap
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https://commons.wikimedia.org/....wiki/File:Obsidian_b
https://commons.wikimedia.org/....wiki/File:Blade_MET_
https://commons.wikimedia.org/....wiki/File:Macro_sewi
https://commons.wikimedia.org/....wiki/File:Beveled_ti
https://www.researchgate.net/f....igure/SEM-image-of-a
https://commons.wikimedia.org/....wiki/File:Scanning_T
https://commons.wikimedia.org/....wiki/File:%D0%9E%D0%
https://commons.wikimedia.org/....wiki/File:Prehistori