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Inside a Treadmill

4,143 المشاهدات· 10/23/23
Science Channel
Science Channel
1,316 مشتركين
1,316
في Discovery

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 ...

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