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Maybe that's how they got edges on their tools?
by sys32768 3y ago
Maybe that's how they got edges on their tools?
- akiselev 3y agoThere's little evidence of ground stone tools until very recently [1], like tens of thousands of years ago. It wasn't until agriculture that the technology became widespread. Knapping [2] - which has been around for over 3 million years at this point - is much more predictable and efficient than grinding while requiring less intuitive knowledge of the materials. Paleolithic people just didn't have the resources to experiment with enough materials to figure out hardness, grain size, etc. for proper grinding. [1] https://en.wikipedia.org/wiki/Ground_stone https://en.wikipedia.org/wiki/Ground_stone [2] https://en.wikipedia.org/wiki/Lithic_reduction https://en.wikipedia.org/wiki/Lithic_reduction
- NegativeLatency 3y agoIf you look at the video some of the patterns are very regular and geometric, not what I'd expect for a regular sharpening of a tool. It's possible they sharpened tools artfully but then that's just a different way of creating the inscriptions. https://youtu.be/fFbgQhY4Yxw?t=769 https://youtu.be/fFbgQhY4Yxw?t=769
- pbj1968 3y agoThat’s exactly what it looks like to me, too.