TealHarbor Media
Inside a Treadmill
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yayınlandı 12 Apr 2022 / İçinde
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A treadmill's belt glides around two twenty-six pound steel rollers. Rubber bumpers act as shock absorbers as the feet pound down o the belt.
Machines: How They Work
THURSDAYS @ 10/9C
http://www.sciencechannel.com/....tv-shows/machines-ho
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