Was the polished stone spearhead from the Neolithic period sharp?

This is a video from a million years ago. In that era, not only were stone tools made by hammering,

shiheshipian

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High school student

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It's really great to have a roommate like this.

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The teasing has begun!

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Mobile phone macro assists in pulling out the fine glass residue from the flesh

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This is how baseball is tied

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Various sophisticated instruments

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Teach you how to make a Paleolithic Acheulean handaxe

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Fixed stone arrow

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Major technological breakthrough!!

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The curator said it was made in Taiwan

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How are such precise molds made?

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[DIY]Demonstration of self-made bench clamp

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Netizens' welding skills competition! Great welding, don't weld next time!

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Handmade Internal Combustion Tractor

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[Wool Felt] How to put a cat in a cup

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You're really playing around, aren't you?

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Invented by clever craftsmen

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The latest behind-the-scenes special for Love, Death & Robots Season 3's "Jibaro"!

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real man, no umbrella

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