#sawmill

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fromwww.theguardian.com
16 hours ago

Did you solve it? The forgotten Dutch invention that created the modern world

A simple off-centre pinned rod on a rotating disc coupled to a guided rod converts rotary motion into reciprocating up-and-down motion.
fromwww.theguardian.com
1 day ago

Can you solve it? The forgotten Dutch invention that created the modern world

Corneliszoon's sawmill, argues Davila, was mankind's first true industrial machine. A windmill turned a wheel. One component transformed the rotary motion into up-and-down motion for the cutting blade. Another component transformed the rotary motion into a sideway's motion feeding the log to the blade. A ratchet system moved the log forward one precise increment per cycle. Each element was modest on its own.
Science
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