. How to make and use electricity ... 56 HOW TO MAKE AND or the footfall of an insect, may be reproduced a considerabledistance, and be as audible as though the original sounds weremade close to the ear. If a person talk to the thin pineboard, his words will be distinctly heard in the receiver. The last subject which we will consider is the Storage orSecondary battery. A Storage battery consists simply of two lead plates im-mersed in a solution of sulphuric acid and water (water 10parts, acid 1 part). Figure 5 represents ajar containing theelements ready for Take a piece of pine wood thr
. How to make and use electricity ... 56 HOW TO MAKE AND or the footfall of an insect, may be reproduced a considerabledistance, and be as audible as though the original sounds weremade close to the ear. If a person talk to the thin pineboard, his words will be distinctly heard in the receiver. The last subject which we will consider is the Storage orSecondary battery. A Storage battery consists simply of two lead plates im-mersed in a solution of sulphuric acid and water (water 10parts, acid 1 part). Figure 5 represents ajar containing theelements ready for Take a piece of pine wood three inches wide by four incheslong, and fasten to it six plates of sneet lead, two incheswide by three inches long, about half an inch apart. Connectthe second plate with the fourtn, and the third with the fifth;this leave3 the first and sixth, which are positive and negativerespectively. Place these in a square glass or earthen jar threeiuches wide, four inches long, and four inches deep; placeinto the jar the solution and fasten the top on tightly. The ele-ments nor the solution need not be changed at all, as theywaste away very slowly. In order to charge the battery connect its two wires to thewires of the 8-cell battery described in another article, and allowthem to be in circuit for two hours. Disconnect them, and thebattery is ready for use, and must be handled the same as anyother battery. This single cell will burn a 2-candle lampfor one hour. After the battery is discharged, attach it again tothe 8-cell battery for two hours, and it will be as full
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectricity, bookyear
