Mechanical Calculating Device

Computer! This device is called The Millionaire, and was used to help make the calculations that led to the discovery of Pluto. See previous picture in my photostream for the placard describing the device.

  • Carlos Smith 4y

    Where are the control-alt-delete keys?
  • Chris Aquino 4y

    It's neat that they included the brush for cleaning the mechanicals.
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Taken on May 25, 2009
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