https://en.wikipedia.org/wiki/Simple_machine
6 SIMPLE MACHINES WHEN IN FACT THE HISTORICAL INTRODUCTION OF GEARS GOES BACK TO ANTIQUITY
https://en.wikipedia.org/wiki/Gear#History
https://en.wikipedia.org/wiki/Gear_train
WHICH WOULD MAKE IT 7 SIMPLE MACHINES NO ???
PRETTY IMPORTANT AND CRITICAL I THINK ??????????
Live~NRGY 
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