Again, who needs a car when you can have a vehicle powered by an exceptionally strong pet? The so-called "Poochmobile," invented by eighty year-old dog trainer Z. Wiggs, applied the squirrel cage principle to its primary wheel. While the dog ran, a belt and pulley mechanism would turn the rear drive wheels, which were in turn controlled by the driver's "gearshift" lever in the front. Our question is, how did Wiggs get his dog to run around around in that wheel? Dogs aren't hamsters -- wouldn't most breeds just sit there, whining and confused?
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