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Everyone is looking for alternate energy sources these days. I think this is one that is almost always left untapped. "The first criteria we needed to design the alternator was an estimate of the Revolutions Per Minute (RPM) a rodent can generate on the wheel. The lower the RPMs, the more difficult it is to design a good alternator for it. Analise took a stopwatch to the local pet store and recorded how many times the wheel went around in 10-second intervals, then multiplied these figures by 6 to get RPMs. She found that most rodents can make between 40 and 60 rpm on the exercise wheel. That gave us a starting point for the alternator design. Our first thought was to use a DC hobby motor to generate the electricity, so we could charge up some NiCad batteries to run a light. However, we immediately ran into the same problems as when we built toy wind turbines using hobby motors — at the required low RPMs, most hobby motors cannot get the voltage high enough to start charging batteries. And you often can’t tell what a hobby motor is rated at, there is not usually a specs plate on it. So you might have a 500 RPM motor, or a 10,000 RPM motor! The rated RPMs of the motor determine at what RPM it can make a certain voltage. None of the DC hobby motors we had available could make even 1.2 volts (the voltage of a single AA NiCad) at 40-60 rpm. So we scrapped the idea of using a DC motor as a generator. Plus, the required diode (to keep the battery from just spinning the motor) would drop the voltage by at least another 0.7 volts. It would be possible, but complicated (and bad practice) to use gearing or a belt and pulley system to raise the RPMs — the friction losses in the gearing system would be major, and design would be complicated. Rodents like to chew, and a rubber belt would be fair game. Plus it’s much more fun to build your own alternator than to use a pre-made hobby motor!"
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Just think of all the wasted power when the pet hamster is doing his thing with the hamster wheel. You can now do something to harness all that wasted energy, build yourself a 
February 27th, 2008
Kids Next Door anyone?
February 27th, 2008
[...] volts. It would be possible, but complicated (and bad practice) to use gearing or a belt and pulley system to raise the RPMs — the friction losses in the gearing system would be major, and design would be [...]
February 27th, 2008
I’ve heard of Turnspit dogs (http://en.wikipedia.org/wiki/Turnspit_Dog) but Turngene hamsters ???
February 28th, 2008
[...] Only one hamster can save the hamster race. Hamster Neo must take the red pill and enter the animatrix and save all the tiny rodents from their eventual fate- becoming energy sources for the more powerful human race. Made from a few simple parts the hamster powered generator can produce enough power to run a nightlight. Forget green power, the future is in small furry brown power. So get your pets working for you. via HackedGadgets [...]
March 1st, 2008
[...] Hacked Gadgets] « When Your Phone Really Has to be [...]
March 2nd, 2008
now we just need nuclear powered hamsters
March 3rd, 2008
[...] Hacked Gadgets] « The Web Doesn’t [...]
March 25th, 2008
I like the idea…
Now the hamster can produce his own cage light (with leds of course)
But… how many hamsters for powering a laptop ? That is cool.
May 5th, 2008
[...] Hamster Powered Generator - (hackedgadgets.com) “Use a hamster to power a generator!“ [...]
May 12th, 2008
we love skippy yay!
November 3rd, 2008
i was going to invent this
November 3rd, 2008
Hi Cam,
You could link many of them together to power your computer.