 | Benjamin Franklin - 1834 - 312 pages
...which should rise n pointed iron rod. inmilnted hy ln'ing fixed in a cake of rosin. Electrified cluuds passing over this, would, he conceived, impart to it a portion of their electricitv, which would he rendered evident to the Benseshy sparks hring emitted, when a key, the... | |
 | Benjamin Franklin, Jared Sparks - 1837 - 552 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, the knuckle, or other conductor was presented to... | |
 | Philip Alexander Prince - 1838 - 702 pages
...proposed was, to erect on some high lower, 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, the knuckle, or other conductor, was presented to... | |
 | Benjamin Franklin - 1839 - 246 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...to it a portion of their electricity, Which would bo rendered evident to the senses by sparks being emitted, when a key, the knuckle, or other conductor,... | |
 | Benjamin Franklin - 1839 - 268 pages
...place a sentry-hox, from which should rise a • d iron rod, insulated hy heing fixed in a cake of ,. Electrified clouds passing over this, would, he conceived,...impart to it a portion of their electricity, which wo ild he rendered evident to the senses hy sparks ng emitted, when n kev, the knuckle, or other condoctorwiu... | |
 | Benjamin Franklin - 1840 - 342 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, the knuckle, or other conductor was presented to... | |
 | Philip Alexander Prince - 1843 - 776 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, the knuckle, or other conductor, was presented to... | |
 | Benjamin Franklin - 1846 - 320 pages
...or other elevated place, a sentrybox, from which should rise a pointed iron rod, insulated by heing fixed in a cake of resin. Electrified clouds passing...to it a portion of their electricity, which would he rendered evident to the senses by sparks heing emitted, when a key, the knuckle, or other conductor,... | |
 | Benjamin Franklin - 1846 - 250 pages
...which should rise a pointed iron rod, insulated hy heing fixed in a cake of ruin. Electrified clouda passing over this, would , he conceived, impart to it a portion of their electricity, which would he rendered evident to the senses hy sparks heing emitted, when a key, the knuckle- or other conductor,... | |
 | Charles Tomlinson - 1848 - 306 pages
...experiment 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, or other conductor, was presented to it. At this... | |
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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... 
