Reprint of papers on electrostatics and magnetism . (6.) A very light platinum wire, long enough to hang withinone-eighth of an inch or so of the bottom of the jar, and to dipin the sulphuric acid. (7.) A metal ring, attached to the inner coating of the jar,bearing two plates in proper positions for repelling the twoends of the aluminium needle when similarly electrified, andproper stops to limit the angular motion of the needle to with-in about 45° from these plates. (8.) A cage of fine brass wire, stretched on brass framework,supported from the main case above by two glass pillars, andpartia
Reprint of papers on electrostatics and magnetism . (6.) A very light platinum wire, long enough to hang withinone-eighth of an inch or so of the bottom of the jar, and to dipin the sulphuric acid. (7.) A metal ring, attached to the inner coating of the jar,bearing two plates in proper positions for repelling the twoends of the aluminium needle when similarly electrified, andproper stops to limit the angular motion of the needle to with-in about 45° from these plates. (8.) A cage of fine brass wire, stretched on brass framework,supported from the main case above by two glass pillars, andpartially enclosing the two ends of the needle, and the repel-ling plates, from all of which it is separated by clear spaces, ofnowhere less than one-fourth of an inch of air. (9.) A charging electrode, attached to the ring (7.), and pro-jecting over the mouth of the jar to the outside of the metalcase (2.), through a wide aperture, which is commonly keptclosed by a metal cap, leaving at least one-quarter of an inchof air round the projecting end of th
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectmagnetism, bookyear18
