Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage ...
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World’s sharpest obsidian knife revealed
We created the sharpest obsidian knife, surpassing the precision of a scalpel, using a 60,000 PSI waterjet to craft a very thin blade. The video also features the unique properties of petrified wood. ...
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