Member Since: August 17, 2010

Country: United States

  • Years ago in prehistoric times (1986)I had a customer
    who had a startup (in Boulder). He had a design
    for an exercise bike in which the main resistance element was a generator to which the bike pedals were
    attached. The drag was varied by kicking power resistors
    in to increase drag and kicking them out to reduce drag.
    One of the biggest problems we had with the design was
    that the heat from the power resistors had to be transfered to the surrounding air and shielded from
    the riders legs. They got hot enough to burn skin.
    We used to joke that we should just hook the bike up to a battery and run the computers or the lights.

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