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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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The Juvenile companion, and Sunday-school hive [afterw ..., Volúmenes 29-30

1878
...neuralgia, for rheumatism, for failing fortunes, for melancholy. We suspect heaven is sunshine. to ascertain the length of the day and night at any time of the year, double the time of the sun's rising, which gives the AND «SLIGHT. length of the night, and double...
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Intuitive calculations; the readiest and most concise methods

Daniel O'Gorman - 1853
...sum add 120 found opposite May — more 16 for May, and you have 192, the days required. To ascertain 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, and double the...
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Scobie's Canadian Almanac, and Repository of Useful Knowledge

1853
...he has risen, and after he has really set. This almanac is in clock time or mean time. TO ASCERTAIN THE LENGTH OF THE DAY AND NIGHT. At any time of the year, add 12 hours to the time of the Sun's setting, and from the sum substract the time of rising, for the...
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The Year-book of the American Congregational Union: For the Year ..., Volumen 1

1854
...the Equator -186 10 53 Sun South of the Equator • 178 18 55 Difl'erence, - - - 7 15 58 To ascertain the length of the Day and Night. At any time of the year, add 12 hours to the time of the Sun's setting, and from the M 'ii. • • subtract the time of rising,...
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The Illustrated Annual Register of Rural Affairs and ..., Volúmenes 1-3

John J. Thomas - 1855
...The only means of keeping correct time is by the use of a noon-mark, or a meridian line. TO ASCERTAIN THE LENGTH OF THE DAY AND NIGHT. At any time of the year, add 12 hours to the time of the Sun's setting, and from the sum subtract time of rising, for the length...
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Merry's Museum and Parley's Magazine, Volúmenes 33-34

1857
...carries a pail of water in his right hand, wherein are fruits and flowers. A SIMPLE RULE.—To ascertain the length of the day and night, at any time of the year, double the time of the sun's rising, which gives the length of the night, and double the time of its...
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The Illustrated Annual Register of Rural Affairs and Cultivator ..., Números 4-6

John J. Thomas - 1858
...28th, invisible in the United States. THE LUNAR ECLIPSE OF FEB. 17 IN THE MORNING. TO ASCERTAIN TUB LENGTH OF THE DAY AND NIGHT, AT any time of the year, add 12 hours to the time of the Sun's setting, and from the sum subtract the time of rising, for the...
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the latter-day saints' millennial star volume xxv.

george q. cannon - 1863
...die a natural death ?" " No," was the prompt reply, " he was excommunicated by a bull." To ascertain the length of the day and night, at any time of the year, double the time of the sun's rising, which gives the length of the night, and double the time of its...
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A grammar of geography, by J. Goldsmith

sir Richard Phillips - 1868
...Gibraltar, Teneriffe, and Vienna, on the '15th of April, the 4th of July, and the 20th of November? * PROBLEM X. — 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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Kenny's Goldsmith's Grammar of geography, revised and brought down to the ...

sir Richard Phillips - 1868
...Teneriffe, and Vienna, on the loth of April, the 4th of July, and the 20th of November ?f PROBLEM X—To find the length of the day and night at any time of the year. Ex.—Thus, on the 25th of May, the sun rises at London about 4 am, and sets at 8 pm The length of...
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