 | Benjamin Franklin, Jared Sparks - 1837 - 552 páginas
...machine takes up but little room, is portable, and may be enclosed in a tight box, when not in use. It is true, the sphere does not turn so swift as when the...little importance, since a few turns will charge the phial, &c., sufficiently.! I am, &c. B. FRANKLIN. * Our tubes are made here of green glass, twenty-seven... | |
 | American Philosophical Society - 1893 - 806 páginas
...Frictional Electricity in Theory and Practice, by Sir William Snow Harris, KRS, London, 1HS7, p. 104. 107 closed in a tight box when not in use. 'Tis true the...cushion as the rubber was introduced by Winkler in i744-f And, although Hawksbee had used a cylindrical electric, yet it did not come into use apparently... | |
 | American Philosophical Society - 1894 - 810 páginas
...Frtctional Electricity in Theory and Practice, by Sir William Snow Harris, FRS, London, 1867, p. 104. 107 closed in a tight box when not in use. 'Tis true the...collector to the globe machine was made by Boze in 1 742,* and the use of a leather cushion as the rubber was introduced by Winkler in i;44.f And, although... | |
 | Benjamin Franklin, Jared Sparks - 1856 - 554 páginas
...enclosed in a tight box, when not in use. It is true, the sphere does not turn so swift as when the g^eat wheel is used; but swiftness we think of' little importance, since a few turns will charge the phial, &c., sufficiently.f I am, &c. B. FRANKLIN. * Our tubes are made here of green glass, twenty-seven... | |
 | Benjamin Franklin - 1905 - 496 páginas
...This we find very commodious, as the machine takes up but little room, is portable and may be enclosed in a tight box when not in use. 'Tis true the sphere...since a few turns will charge the vial sufficiently." The credit of the contrivance of this machine Franklin gives to Philip Syng, a member of the Junto.... | |
 | Benjamin Franklin - 1905 - 524 páginas
...we find very commodious, as the machine takes up but little room, is portable, and may be enclosed in a tight box, when not in use. 'Tis true, the sphere...little importance, since a few turns will charge the phial, &c., sufficiently.1 I am, &c. B. FRANKLIN. 61. TO JARED ELIOT2 (Y.) PHILADA, July 16, 1747.... | |
 | Oliver Joseph Thatcher - 1907 - 484 páginas
...machine takes up but little room, is portable, and may be enclosed in a tight box, when not in use. It is true, the sphere does not turn so swift as when the...little importance, since a few turns will charge the phial, &c., sufficiently. I am, &c. B. FRANKLIN. THE IDENTITY OF LIGHTNING AND ELECTRICITY. THE LIGHTNING... | |
 | Oliver J. Thatcher - 2004 - 466 páginas
...machine takes up but little room, is portable, and may be enclosed in a tight box, when not in use. It is true, the sphere does not turn so swift as when the...little importance, since a few turns will charge the phial, &c., sufficiently. lam, &c. B. FRANKLIN. THE IDENTITY OF LIGHTNING AND ELECTRICITY. THE LIGHTNING... | |
 | Benjamin Franklin - 1904 - 496 páginas
...machine takes up but little room, is portable, and may be enclosed in a tight box when not in use. It is true the sphere does not turn so swift as when the...little importance, since a few turns will charge the phial, &c., sufficiently.1 I am, &c., B. FRANKLIN. XLV TO JARED ELIOT1 PHILADELPHIA, July 16, 1747.... | |
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At one end of the axis there is a small handle, with which you turn the sphere like a common grindstone. This we find very commodious, as the machine takes up but little room, is portable, and may be enclosed in a tight box, when not in use. 