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" The fulcrum is a bit of plate brass, the middle of which lies flat on my table when I use the balance, and the two ends are bent up to a right angle so as to stand upright. These two ends are ground at the same time on a flat hone, that the extreme surfaces... "
Chemical Manipulation: Being Instructions to Students in Chemistry on the ... - Pagina 61
door Michael Faraday - 1842 - 664 pagina’s
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Annals of Philosophy, Volume 10;Volume 26

1825
...numeration of the divisions is from the middle to each end of the beam. The fulcrum is a bit of plate brass, the middle of which lies flat on my table when I use...These two ends are ground at the same time on a flat none, that the extreme surfaces of them may be in the same plane ; and their distance is such that...
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Glasgow Mechanics' Magazine, and Annals of Philosophy, Volume 4

1826
...numerations of the divisions is from the middle to each end of the beam. The fulcrum is a bit of plate brass, the middle of which lies flat on my table when I use...at the same time on a flat hone, that the extreme surface of them may be in the same plane ; and their distance is such that the needle, when laid across...
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Iron: An Illustrated Weekly Journal for Iron and Steel ..., Volume 6

Perry Fairfax Nursey - 1827
...of the beam. The fulcrum is a bit of plate-brass, the middle of which lie« flat on my table when 1 use the balance, and the two ends are bent up to a...them may be in the same plane ; and their distance issuch, that the needle, when laid across them, rests on them at « small distance from the sides of...
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Mechanics Magazine, Volume 6

1827
...numerations of the divisions is from the middle to each end of the beam. The fulcrum is a bit of plate-brass, the middle of which lies flat on my table when I use...and the two ends are bent up to a right angle, so as tu stand upright. These two ends are «¡round at the same lime on a flat hone, that the extreme surfaces...
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The Operative Chemist: Being a Practical Display of the Arts and ...

Samuel Frederick Gray - 1828 - 881 pagina’s
...fulcrum is » bit of plate brass, the middle of which lies flat on the table when the balance is used, and the two ends are bent up to a right angle, so...on a flat hone, that the extreme surfaces of them maybe in the same plane ; and their distance is such that the needle, when laid across, rests on them...
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A Treatise on Mechanics

Henry Kater, Dionysius Lardner - 1852 - 342 pagina’s
...numeration of the divisions is from the middle to each end of the beam. The fulcrum is a bit of plate brass, the middle of which lies flat on my table when I use...stand upright. These two ends are ground at the same turn on a flat hone, that the extreme surfaces of them ma) be in the same plane ; and their distance...
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The popular educator, Volume 4;Volume 7

Popular educator - 1852
...ot brsss plate, the middle of which lies flat upon he table ; the two ends are bent at right angles so as to stand upright. These two ends are ground at the same time on a flat hone. A grain weight is placed on one division of the balance, and the object to ie weighed on another; the...
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James Smithson and His Bequest

William Jones Rhees - 1880 - 68 pagina’s
...numeration of the divisions is from the middle to each end of the beam. The fulcrum is a bit of plate brass, the middle of which lies flat on my table when I use...right angle so as to stand upright. These two ends iire ground at the same time on a flat hone, that the extreme surfaces of them may be in the same plane...
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Smithsonian Miscellaneous Collections, Volume 21

Smithsonian Institution - 1881 - 68 pagina’s
...numeration of the divisions is from the middle to each end of the beam. The fulcrum is a bit of plate brass, the middle of which lies flat on my table when I use...a flat hone, that the extreme surfaces of them may bo in the same plane ; and their distance is such that the needle when laid across them rests on them...
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The Development of Chemistry, 1789-1914: Chemical manipulation

Michael Faraday - 1998 - 664 pagina’s
...middle to each end of the beam. The fulcrum is a bit of brass plate, the middle of which lies Hat. on my table when I use the balance, and the two ends are bent up to a right angle so as to stand up* right. These two ends are ground at the same time on a flat hone, that the extreme surfaces of...
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