. How to make and use electricity ... jar, would naturally excite great ad-miration and astonishment. Accordingly, showmen traveledwith the apparatus through the principal cities of Europe, andprobably no object of philosophical curiosity ever drew togethergreater crowds of spectators. It was this astonishing experi-ment which gave eclat to electricity. Everybody was eager tosee and feel the a green glass quart fruit-jar within and without, USE ELECTRICITY. 11 for about twothirds its length with tin foil, using flour pasteClose the mouth of the jar with a cork, and pour sealing
. How to make and use electricity ... jar, would naturally excite great ad-miration and astonishment. Accordingly, showmen traveledwith the apparatus through the principal cities of Europe, andprobably no object of philosophical curiosity ever drew togethergreater crowds of spectators. It was this astonishing experi-ment which gave eclat to electricity. Everybody was eager tosee and feel the a green glass quart fruit-jar within and without, USE ELECTRICITY. 11 for about twothirds its length with tin foil, using flour pasteClose the mouth of the jar with a cork, and pour sealing-waxover it. Through the cork pass a stout brass or copper wire tillii touches the inner foil. Cast a lead bullet (a) on the exposedend of the wire. Clean, warm and varnish the exposed glasssurface of the jar, and thoroughly dry it, and it is ready for jar may be charged by connecting its outer coating withthe earth and bringing the leaden ball close to the prime con-ductor, or by connecting one of its coatings with the prime. conductor ( + ) and the other with the chain (—). To dischargethe jar connect the outer coating with the knob of the jar. Toavoid a shock in doing so prepare a discharger as follows:Through the cork of a soda-water bottle-pass a stout brass semi-circular wire. Cast on each of its ends a lead bullet. Place thecork in the bottle, and use it as a handle. When it is desirableto discharge thy Leyden jar touch the outer coating with oneball and the knob of the jar with the other. A bright sparkwill pass from the knob to the ball and the jar will discharge it-self with a loud report. The charge of a Leyden jar maybe retained for a very longtime. If the surfaces be well separated from each other thecharge remains for many days, or even weeks. The charge isusually dissipated by particles of dust in motion or other con-ducting substances in the atmosphere from one of the coatings 12 HOW TO MAKE AND to the other, or by the uncoated interval becoming moist
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectricity, bookyear
