MEXICO CITY — Traces of blood and fragments of muscle, tendon, skin and hair found on 2,000-year-old stone knives have given researchers the first conclusive evidence that the obsidian blades were ...
Waterjet Channel on MSN
Worlds Sharpest Knife Obsidian vs 60,000 PSI Waterjet
In this video, we explore the properties of obsidian by attempting to create a knife using a waterjet cutter. After ...
East Idaho News on MSN
Annual Rock Sale slated for next Saturday
The Idaho Falls Gem & Mineral Society (IFG&MS) will be holding its Annual Members Rock, Gem and Jewelry Sale from 9 a.m. to 5 ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more ...
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