 | Benjamin Franklin - 1793 - 324 pages
...fhould rife a pointed iron rod, infulated by being fixed in a cake of refin. Electrified clouds paffing over this, would, he conceived, impart to it a portion...their electricity, which would be rendered evident to the fenfes by fparks being emitted, when a key, a knuckle, or other conductor, was prefented to... | |
 | Benjamin Franklin - 1807 - 310 pages
...proposed, was, to erect on some high tower, or other elevated place, a ccntry box, from which should rise a pointed iron rod, insulated by being fixed in a cake of resirr. Electrified clouds passing over this, would, he conceived, impart to it a portion of their... | |
 | 1794 - 802 pages
...fhould rifc a pointed iron rod, infulated by being fixed in a cake of refin. Electrified clouds paffing over this, would, he conceived, impart to it a portion...their electricity, which would be rendered evident to the fenfes by fparks being emitted, when a key, a knuckle, or other conductor, was prefented to... | |
 | 1794 - 826 pages
...ilu.uld rile a pointed iron rod, infulated liy bemg fixed in a cake of refm. Electrified clouds paffing over this, would, he conceived, impart to it a portion of their eb&ricity, which would be rendered evident to the fenlev by iparks being emitted, when a Key, a knuckle,... | |
 | Benjamin Franklin - 1810 - 292 pages
...centry-box, from whkh should rise a pointed iron rod, insulated by being -fixed in a cuke of rosin. Electrified clouds passing over this, would, he conceived,...it a portion of their electricity, which would be rendt red -evident to the senses by sparks being emitted, *?hen a key, a knuckle, or other conductor,... | |
 | James Smith - 1815 - 942 pages
...part of them, and descend some feet into the ground or the water. The manner in which Dr. Franklin proposed to bring his speculations to trial, was to...portion of their electricity, which would be rendered cvideut by the sparks it yielded on being touched by any con* Ligbtuing drawn from tlie ductor. Philadelphia... | |
 | Benjamin Franklin - 1815 - 336 pages
...proposed, was to erect on some high tower, or other elevated placet a centry-box, from which should rise a pointed iron rod, insulated by being fixed...their electricity, which would be rendered evident to the senses by sparks being- emitted, when a key, a knuckle, or other, con* ductor, was presented... | |
 | Benjamin Franklin - 1818 - 566 pages
...proposed, was, to erect on some high tower, or other elevated place, a sentry-box, from which should rise a pointed iron rod, insulated by being fixed...their electricity, which would be rendered evident to the senses by sparks being emitted, when a key, a knuckle, or other conductor was presented to it.... | |
 | Benjamin Franklin - 1818 - 558 pages
...proposed, was, to erect on some high tower, or other elevated place, a sentrybox, from which should rise a pointed iron rod, insulated by being fixed...to it a portion of their electricity, which would he rendered evident to the senses by sparks being emitted, when a key, a knuckle, or other conductor... | |
 | William Jerdan, William Ring Workman, Frederick Arnold, John Morley, Charles Wycliffe Goodwin - 1818 - 862 pages
...elevated place, a sentry-box, from which should ri»ea pointed iron rod, insulated by being fixed iu a cake of resin. Electrified clouds passing over this,...their electricity, which would be rendered evident to the senses l<y sparks bei«g emitted, when. a key, a knuckle, or other conductor was presented to... | |
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It was not until the summer of 1752, that he was enabled to complete his grand and unparalleled discovery by experiment. The plan which he had originally proposed was, to erect, on some high tower or other elevated place, a sentry-box, from which should... 
