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" Rectify the globe for the latitude of the place, find the sun's place in the ecliptic and bring it to the brass meridian, and set the index of the hour circle to 12. Turn the globe westward till the sun's place... "
A New Treatise on the Use of the Globes with Notes and Observations ... - Página 123
por James M'Intire - 1826 - 215 páginas
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A New Treatise on the Use of the Globes, Or, A Philosophical View of the ...

Thomas Keith - 1811 - 388 páginas
...of altitude on the brass meridian, over the degree of the sun's declination ; bring the given place to the brass meridian, and set the index of the hour circle to twelve : turn the globe eastward till the given place comes to the horizon, and the hours passed over...
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A Compendious Treatise on the Use of the Globes, and of Maps: Compiled from ...

John Lathrop - 1812 - 218 páginas
...RULE. .Elevate the pole to the latitude of the place, find the sun's place in the ecliptic, bring it to the brass meridian, and set the index of the hour circle to twelve ; then, if the time be before noon, turn the globe eastward on its axis till the index has passed...
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A New Treatise on the Use of the Globes: Or, A Philosophical View of the ...

Thomas Keith - 1819 - 380 páginas
...given, to find ivhut hour it is at any other place. Rule. Bring the place at which the time is given to the brass meridian, and set the index of the hour circle io 12 ;* turn the globe till the other place comes to the meridian, and the hours passed over by the...
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An Introduction to Ancient and Modern Geography: To which are Added Rules ...

Jacob Abbot Cummings - 1825 - 216 páginas
...being given to find what Hour it is at any other place. Rule. Bring the place, where the hour is given, to the brass meridian, and set the index of the hour circle to that hour, then turn the globe till the proposed place comes under the meridian, and the index will...
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The New American Grammar of the Elements of Astronomy: On an Improved Plan ...

James Ryan - 1827 - 408 páginas
...of the river Don. [ PROBLEM XII. To find the Perueci of any given place. RULE. Bring the given place to the brass meridian, and set the index of the hour circle to 1 2, turn the globe half round, or till the index points to the other 12, then under the latitude of...
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A Geography for the Use of Schools ...

Jacob Willetts - 1831 - 220 páginas
...Elevate the pole equal to the latitude of the place ; find the sun's place in the ecliptic and: bring it to the brass meridian, and set the index of the hour circle to 12 ; bring the star to the eastern edge of the horizon and the index shows the time of the rising : bring...
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Elements of Astronomy: Descriptive and Physical ...

Hervey Wilbur - 1831 - 170 páginas
...latitude, then under the same degree of latitude, in the opposite hemisphere you will find the Anteeci. Set the index of the hour circle to 12, turn the globe half round, or until the index points to the other 12 ; then under that degree on the brass meridian,...
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Guys̕ Elements of Astronomy: And, An Abridgement of Keiths' New Treatise on ...

Joseph Guy - 1832 - 412 páginas
...horizon as are equal to the latitude ; find the sun's place in the ecliptic (by Problem XX.) bring it to the brass meridian, and set the index of the hour circle to twelve ; turn the globe westward till the sun's place come to the western semicircle of the horizon,...
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A Practical System of Modern Geography, Or, A View of the Present State of ...

Jesse Olney - 1833 - 300 páginas
...Rectify the globe for the latitude of the place, find the sun's place in the ecliptic and bring it tp the brass meridian, and set the index of the hour circle to 12. Turn the globe westward till the sun's place comes to the horizon, and the index will show the time of the sun's setting;...
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Elements of Astronomy, Descriptive and Physical: In which the General ...

Hervey Wilbur - 1834 - 172 páginas
...latitude, then under the same degree of latitude, in the opposite hemisphere you will find the Anteci. Set the index of the hour circle to 12, turn the globe half round, or until the index points to the other 12 ; then under that degree on the brass meridian,...
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