Wednesday, April 15, 2009

On Trolleys


Mainly shopping trolleys, since that’s the sort of trolley I have the most experience with, but the rules seem to apply to all trolleys. It seems that there must be some sort of law specifying a maximum level of coordination between the wheels. I can imagine some clause stating that:

"No more than three wheels may point in the same direction at one time, excepting when:
  • the trolley only has three wheels, in which case, only two may point in the same direction,
  • at least one of the wheels is in a completely uncontrolled oscillatory mode,
  • one wheel is not in contact with the ground, or
  • the driver of the trolley has absolutely no control."

Whatever the law states, it seems to be really well enforced. Although I have never seen anyone actually issuing fines for a straight trolley, I have also never encountered a trolley that breaks this law.

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