On Thu, Oct 27, 2011 at 7:23 AM, Kristen Eisenberg < kristen.eisenb...@yahoo.com> wrote:
> If we're talking about kids powering their own devices, I think the > way to go is to turn "work" into play. The merry go round/hard bar > swing would fit in this category. > > So basically, let's look at activities where energy exerted is ambient > anyway? What I mean is that the energy is being used up by the kids > anyway, so why not tap into those. An example is to give them some > variant of those "dance straps" meant to power cellphones before they > go off to run and play during recess and lunch break. > > One way to tap into this would be to create new playground > installation toys which can be used for harvesting energy. > > Q: how much abuse can a kinetic energy harvester withstand? A soccer > of basketball has a lot of kinetic and impact energy bouncing around. > I'd imagine that's too much abuse though, and whatever harvesting > mechanism would break from the forces. > > Would piezo work there? > > > FYI, this is exactly the concept behind PlayPumps for water pumping. http://www.playpumps.co.za/ cjl
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