20109-0000 Musée des arts et métiers-CNAM (Paris France)
Suggestions & Corrections
Type:
instrument
Dimension:
H.: 17; Diam.: 7; Mass: 60 g.
Component's data
Thematic group:
Instruments
Type:
apparatus
Abstract:
A Henly's quadrant electrometer, by G. Adams, London. The protractor reads in degrees and seems to be made of ivory on wood. The usual light-rod with attached cork ball is missing.