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The Sewerage of Sea Coast Towns

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Author: Henry C. Adams
Language: English
Wordcount: 35,802 / 113 pg
Flesch-Kincaid Reading Ease: 55.5
LoC Category: Q
Downloads: 461
mnybks.net#: 463
Origin: gutenberg.org
Genre: Science
Excerpt

March 20) the equator is vertically under the sun, which then declines to the south until the summer solstice (June 21), when it reaches its maximum south declination. It then moves northwards, passing vertically over the equator again at the autumnal equinox (September 21), and reaches its maximum northern declination on the winter solstice (December 21). The declination varies from about 24 degrees above to 24 degrees below the equator. The sun is nearest to the Southern Ocean, where the tides are generated, when it is in its southern declination, and furthest away when in the north, but the sun is actually nearest to the earth on December 31 (perihelion) and furthest away on July I (aphelion), the difference between the maximum and minimum distance being one-thirtieth of the whole.

The moon travels in a similar diagonal direction around the earth, varying between 18-1/2 degrees and 28-1/2 degreed above and below the equator. The change from north to south declination takes place every fourteen days,

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