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" Only double the time of the sun's rising that day, and it gives the length of the night ; double the time of its setting and it gives the length of the day. "
Astronomical and Geographical Essays: Containing a Full and Comprehensive ... - Página 303
de George Adams - 1812 - 518 páginas
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Ancient Geography, as Connected with Chronology, and Preparatory to the ...

Emma Willard - 1822 - 88 páginas
...does the sun rise at Rome on the 1st of May ' llth of July 19th of September ? PROBLEM X.— To fmd the Length of the Day and Night at any Time of the...gives the length of the night ; double the time of its setting, and it gives the length of the day. Thus on the 25th of May the sun rises at London about...
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An Easy Grammar of Geography: For the Use of Schools, Upon Goldsmith's Much ...

Jacob Willetts - 1823 - 208 páginas
...edge of the horizon, it marks the point of the compass, upon which it rises or sets that day, fKOBLEM x — To find the length of the day and night at any time in the year. Double the time of the suti's rising;, which gives the length of the. night ; double the...
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Ancient Geography, as Connected with Chronology, and Preparatory to the ...

Emma Willard - 1827 - 96 páginas
...what point of the compass does the sun rise at Rome on the lat of May lllh of July igth of September ? PROBLEM X.— To find the Length of the Day and Night...gives the length of the night ; double the time of its setting and it gives the length of the day. Thus on the 25th of May the sun rises at London ebout...
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A System of Universal Geography: On the Principles of Comparison ..., Número 1

William Channing Woodbridge - 1827 - 340 páginas
...what point of the compass does the sun rise at Rome on the 1st of May llth of July 19th of September ? PROBLEM X. — To find the Length of the Day and Night...double the time of the sun's rising that day, and it gires the length of the night ; double the time of its setting and it gives the length of the day....
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A System of Universal Geography: On the Principles of Comparison ..., Número 1

William Channing Woodbridge - 1827 - 340 páginas
...what point of the compost does the sun rise at Rome on the 1st of May llthofjuly 19th of September? PROBLEM X.— To find the Length of the Day and Night at any Time (]' the Year. Only double the time of the sun's rising that day, and it gives the length of the night...
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Geography and History

E. R. - 1828 - 388 páginas
...figures go from East to West, you will there see at once the exact time of its setting. PROBLEM XI. To find the Length of the Day and Night, at any Time...gives the length of the night ; double the time of its setting, and it gives the length of the day. This Problem shews how long the Sun stays with us...
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A System of Universal Geography: On the Principles of Comparison and ...

William Channing Woodbridge - 1829 - 336 páginas
...what point of the compass does the sun rise at Rome on the IstofJUay \\th of July I9th of September ? PROBLEM X.— To find the Length of the Day and Night at any Time of the fear. Only double the time of the sun's rising that day, and it gives the length of the rrght; double...
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Geography: Or, A Description of the World, in Three Parts : Part I ...

Daniel Adams - 1830 - 323 páginas
...the eastern or western edge of the horizon, it marks the point of the compass upon which it rises or sets that day. PROBLEM X. — To find the length of the day and night at any limt of the year. Double the time of the sun's rising, which gives the length of the night; double...
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A grammar of modern geography, illustr. by an accompanying atlas

L. Ring - 1831
...24th, October 22nd, November 8th, August 8th, December 22nd, February 14th, March 15. PROBLEM XVII.— To find the length of the day and night at any time of the year. Rule. — Double the time of the sun's rising which gives the length of the night, double the time...
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Ancient Geography: As Connected with Chronology, and Preparatory to the ...

Emma Willard - 1835 - 96 páginas
...what point of the compass does the sun rise at Rome on the 1st of May llth of July 19th of September? PROBLEM X. — To find the Length of the Day and Night...gives the length of the night ; double the time of its setting, and it gives the length of the day. Thus 6n the 25th of May, the sun rises at London about...
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