electroscope
- n measuring instrument that detects electric charge; two gold leaves diverge owing to repulsion of charges with like sign
- Professor Regener's automatic electroscope readings disagreed with those which Professor Piccard reported last year.
- When the second bag blew up, the remaining ones hovered practically stationary until a clockwork device released a red parachute and dropped a self-charging electroscope which .
- In the early stages of production, Mervyn LeRoy wanted Frankensteinesque sparks to swizzle from the quartz piezo-electroscope through which the Curies first got on the scent of .