tsthese rubbers with one another, and with the earth.Now when the glass plate is turned i-ound, positive 138 SCIENCE PPIMERS. [electrified electricity is prodiiced in tho glass, wliilo negativeelectricity is produced in the rubbers. The negativeelectricity of the rubbers then passes along… … Fi^ 4-1 rid of the negative electricity, and there is now leftthe positive electricity on the glass. ISTow surround-ing the glass we have two brass rods, which are unitedto a laige metallic surface called the conductor,which you see in the figure. This conductor standsupon glass supports, so that…
Physics
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