ed from a brass rod within aglass jar. To the upper end of therod is attached a metal disk. Ifan unelectrified body is broughtnear the disk, nothing happens;but if an electrified body is broughtnear, the strips of goldfoil diverge,showing the presence of electricity.If the electroscope is charged… … Fig. 90. Induction. — When experimenting with the electroscope,it was found to be affected before an electrified bodytouched it. In like manner, when any in-sulated conductor is held in the field of anelectrified body without touching it, the linesof electric force acting upon the unchargedbody…
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from A course of six lectures on the chemical history of a candle [electronic resource]: to which is added, a lecture on platinum (1865)](https://img.insideoutlibrary.com/img/200/ia-19991842.5823.emory.edu-151-27.webp)