PHILIP HARRIS ELECTROSCOPE, 1890's

Used for the the detection of electrostatic charges. If a charged item such as a Ebonite rod that has been rubbed is held near the the brass terminal, the gold leaf will deflect away from the mounting.

Bruce Hammond Collection

Your comments:

• That one hasn't changed much. Here is the current (2013) Philip Harris Electroscope. www.philipharris.co.uk/product/Dual-Purpose-Electroscope-With-Scale-B8H26679
  
  .......... Ken Odam, Woodbridge UK, 27th of June 2013
  
  

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