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Numbers — Non-Transport Machines

InventTable — NUMBERS ERA — Machines non-transport

InventionDescriptionYearInventorCountry
Spinning wheel for yarn 700 AD India
Mechanical clock timekeeping 725 AD China (31)
Longbow more powerful bow 1000 AD England, UK
Crankshaft machine 1206 AD Al-Jazari Syria
Combination lock security 1206 AD Al-Jazari Syria
Camshaft machine 1206 AD Al-Jazari Syria
Scythe agriculture tool 1300 AD Europe

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Leo Dean Jansen

Leo Dean Jansen, MD is a retired orthopedic surgeon with a special interest in the history of technology.  This web page is the culmination of  his efforts to define and organize the history of technology as seen through 2000 inventions.  TECHNOLOGY:  TABLE, TRUTHS, TIMELINE, TOP 100 represents the 4 parts of this project.

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