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We've come a long way since the first primates used rocks to sharpen sticks, when the first humans threw sticks under heavy rocks and rolled them down slopes. Stone was replaced by obsidian, followed by bronze and iron tools. Technical tools extend the reach of people and make the impossible possible. Mechanical Tools don't have to be complicated to improve our lives and they come in all shapes an...
Mechanical Tools And Human Progress
Jun 25, 2021
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