The Evolution of ER from Discovery to Application

  • Willis M. Winslow


The first tests of a new gadget becomes evolutionary. In the case of ER fluids, for example, it was found that a brass disc suspended by a thin wire in a rotating cup filled with cornstarch and dispersed in kerosene, turned with the rotating cup when the suspending wire was touched by the bare hand, indicating response to the electrical charge maintained by the body. This gadget was an item taken to the U. S. Patent Office to show operability of the invention.


Outer Cylinder Concentric Cylinder Optional Contract Bare Hand Drill Press 
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Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Willis M. Winslow
    • 1
  1. 1.Wheat RidgeUSA

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