Simple working models of historic machines
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35 machines are divided into six general groups: ancient machine tools, lifting devices, mechanisms, machines for pumping and water raising, blowing machines, and heat engines.
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35 machines are divided into six general groups: ancient machine tools, lifting devices, mechanisms, machines for pumping and water raising, blowing machines, and heat engines.
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"35 machines are divided into six general groups: ancient machine tools, lifting devices, mechanisms, machines for pumping and water raising, blowing machines, and heat engines."
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