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History of Science and Mathematics
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user2227111
  • Member for 4 years, 5 months
  • Last seen more than 2 years ago
  • Rome, Metropolitan City of Rome, Italy
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3
How did Archimedes's water clock work?
Apr 7, 2021
answer
2
When was the cogwheel gear invented?
Jul 25, 2020
answer
1
What is the story behind the recently discovered gear fragment of Olbia?
Jul 18, 2020
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How to tune a Roman water-organ (hydraulis)?