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Re: Gearing and Math Question ....
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Posted by John T on November 13, 2005 at 06:06:57 from (66.244.90.98):
In Reply to: Gearing and Math Question .... posted by Gyro Gearloose on November 13, 2005 at 05:20:50:
Gyro, although this is more of a mechanical engineering question and I graduated as an electrical engineer, the physics and conservation of energy issues still intrigue me and we still had to study lots of physics n mechanical stuff. When you discounted the effects of friction and weight (isnt that what you said or intended?) and are left with only the straight gear ratios, I see NO DIFFERENCE, i.e both rides would be the same. Not more or less difficult. Remember, we cant create or destroy energy, only change its form. Thats why in the real world of friction the tractors drawbar HP is less then on the clutch pulley, cuz of the HP requirements necesary to turn all the gears and the friction n heat losses. It got used up and converted to heat energy cuz of the gear friction so theres less available on the drawbar. If your bicycle has frictionless and weightless gears, I see the effort the same to turn the crank/pedals regardless if it were a 10/20 or 15/30 gear set up. So, until proven otherwise, "Thats my story n Im stickin to it" lol John T
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