Theory and practice of the electric telegraph; a manual for operators and students (1875)
Churchill, Charles Henry, d. 1904. [from old catalog] · Oberlin, Ohio, Sherman & bros. · leaf 45
ting, the outerjar will remain charged. 2. What does this experiment prove? This proves that the electricity of either coating is free toleave it provided it is thus brought nearer its opposite force.The knob is a small portion of the inner coating. The knuckleor other conductor brought very near… … and inner coating a small brassball is suspended by a silkenfibre. The ball will vibratetill the jar is discharged. 2. la what other way is Hi is per-formed? A modification of this experiment is often made bycharging one jar from theprime conductor and anotherfrom the negative conductor,a ball will…
Telegraph
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
