The history of the chainsaw:
Your image of a chainsaw probably includes a Pacific Northwest logger in a plaid shirt chopping down a tree with a modern chainsaw, but the first was much smaller. They called it the osteotome, which basically translates to “bone cutter” from Greek.
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The osteotome, which was the original chainsaw.
It looked like a kitchen knife with teeth wound in an oval powered by a hand crank.
It’s funny to think something as horrifying as this was actually invented to improve people’s lives. Honestly, it also probably saved some lives along the way.
It made cutting the pelvic bone easier, and it became a tool for cutting bone in other procedures throughout the 19th century. As anesthesia and C-sections came into practice, symphysiotomys became less common, and the osteotome disappeared.