On 01/26/2011 10:05 PM, Carlos Nazareno wrote: > Hey guys. > > I haven't taken that much look into foot pedal chargers and do know > what their internals look like -- I just remembered coming across the > link I posted so I shared The efficient way to do a foot pedal powered > generator would probably be to have a small weighted wheel spin as a > dynamo when you step on it? > > You just keep pumping on the pedal to keep the wheel spinning and it > shouldn't take much effort, the wheel's momentum should keep power > flowing.
A lot of these ideas have been analyzed in detail. Hardly any of them except the bicycle idea would be feasible at our power levels: http://tinyurl.com/6zozbcn I would note that in your sample above, the reverse EMF from the generator will be significant; the wheel will slow down rapidly. There's no such thing as a free lunch. It seems that the only thing that's feasible to make the XO kid-powered is to significantly lower its power usage. -- Alan Eliasen elia...@mindspring.com http://futureboy.us/ _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
