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" Now, suppose the head of the screw to be a circle, whose diameter is an inch, the circumference of the head will be something more than three inches : this may be easily divided into a hundred equal parts distinctly visible. If a fixed index be presented... "
The Elements of Astronomy: Or, The World as it Is, and as it Appears - Page 37
by Anna Cabot Lowell - 1850 - 376 pages
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Mechanics

Henry Kater, Dionysius Lardner - 1830 - 412 pages
...an inch, the circumference of the head will be something more than three inches : this may be easily divided into a hundred equal parts distinctly visible....one division will correspond to the five thousandth of an inch. In order to observe the motion of the point of the screw in this case, a fine wire is attached...
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The American Library of Useful Knowledge, Volume 2

1831 - 358 pages
...an inch, the circumference of the head will be something more than three inches : this may be easily divided into a hundred equal parts distinctly visible....one division will correspond to the five thousandth of an inch. In order to observe the motion of the point of the screw in this case, a fine wire is attached...
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A Compendium of Natural Philosophy: Adapted to the Use of the General Reader ...

Denison Olmsted - 1837 - 374 pages
...be divided into a hundred equal parts, distinctly visible ; and if a fixed index be applied to it, the hundredth part of a revolution of the screw may...passage of one division of the head under the index. But the hundredth part of a revolution carries the point of the screw only through the (y^ of ^5=)...
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The Penny Mechanic, and the Chemist, Volume 2

1837 - 800 pages
...will be rather more than three incites ; this may be easily divided into a hundred parts, dig. tinctly visible. If a fixed index be presented to this graduated...under the index. Since one entire revolution of the hend moves the point through the fiftieth of an inch, one division will correspond to the five thousandth...
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An Introduction to Natural Philosophy: Designed as a Text Book, for the Use ...

Denison Olmsted - 1844 - 610 pages
...be divided into a hundred equal parts, distinctly visible ; and if a fixed index be applied to it, the hundredth part of a revolution of the screw may...passage of one division of the head under the index. But the hundredth part of a revolution carries the point of the screw only through the (T£j of j!j=)...
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An Introduction to Natural Philosophy: Designed as a Text Book, for the Use ...

Denison Olmsted - 1844 - 618 pages
...be divided into a hundred equal parts, distinctly visible ; and if a fixed index be applied to it, the hundredth part of a revolution of the screw may...passage of one division of the head under the index. But the hundredth part of a revolution carries the point of the screw only through the ( T ^ of ^—)...
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Popular Lectures on Science and Art: Delivered in the Principal ..., Volume 2

Dionysius Lardner - 1846 - 580 pages
...an inch, the circumference of the head will be something more than three inches ; this may be easily divided into a hundred equal parts distinctly visible....one division will correspond to the five thousandth of an inch. In order to observe the motion of the point of the screw in this case, a fine wire is attached...
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A Compendium of Natural Philosophy: Adapted to the Use of the General Reader ...

Denison Olmsted - 1846 - 454 pages
...be divided into a hundred equal parts, distinctly visible ; and if a fixed index be applied to it, the hundredth part of a revolution of the screw may...passage of one division of the head under the index. But the hundredth part of a revolution carries the point of the screw only through the (T£F of jV=)...
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Hand-books of Natural Philosophy and Astronomy: Mechanics. Hydrostatics ...

Dionysius Lardner - 1851 - 802 pages
...inch, the "circumference of the head will be something more than three inches : this may be easily divided into a hundred equal parts, distinctly visible....fiftieth of an inch, one division will correspond to the five-thousandth of an inch. In order to observe the motion of the point of the screw in this ease,...
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Hand-book of Natural Philosophy: Mechanics, Volume 4

Dionysius Lardner - 1858 - 438 pages
...an inch, the circumference of the head will be something more than three inches : this may be easily divided into a hundred equal parts, distinctly visible....fiftieth of an inch, one division will correspond to the five-thousandth of an inch. In order to observe the motion of the point of the screw in this case,...
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