 | Thomas Keith - Astronomy - 1811 - 388 pages
...they all answer to the true times when accurately calculated. When an eclipse of the moon happens, it is observed sooner by those who live eastward than by those who live westward ; and, by frequent experience, astronomers have determined that, for every fifteen degrees difference... | |
 | Thomas Keith - Astronomy - 1819 - 380 pages
...they all answer to the true times when accurately calculated. When an eclipse of the moon happens, it is observed sooner by those who live eastward than by those who live westward ; and, by frequent experience, astronomers have determined that, for every fifteen degrees difference... | |
 | Thomas Arnold - Marine insurance - 1822 - 1008 pages
...all answer to the true times when accurately calculated. \\ hen an eclipse of the moon happens, it is observed sooner by those who live eastward than by those who live westward; and, by frequent experience, astronomers have determined that, for every fifteen degrees difference... | |
 | Thomas Kerigan - Nautical astronomy - 1838 - 804 pages
...luminous body, can project a circular shadow. — Again, A lunar eclipse is observed sooner by those \vlio live eastward than by those who live westward ; the...case, that the inhabitants of Jamaica will not see an ellipse of the moon until about five hours after it takes place at Greenwich ;— therefore the figure... | |
 | Brothers of the Christian schools of Ireland - 1841 - 316 pages
...the degrees of longitude, in different latitudes, and the fact, that eclipses of the moon are seen sooner by those who live eastward, than by those who live westward, in the ratio of one hour to fifteen degrees of longitude, are additional proofs of the earth's spherical... | |
 | Thomas Milner - 1850 - 604 pages
...positions with respect to a luminous body, can project a circular shadow. 4. Eclipses of the moon are observed sooner by those who live eastward, than by those who live westward ; and the sun rises sooner to those who dwell more towards the east, and later in proportion as they... | |
 | Thomas Milner - 1876 - 818 pages
...positions with respect to a luminous body, can project a circular shadow. 4. Eclipses of the moon are observed sooner by those who live eastward, than by those who live westward ; and the sun rises sooner to those who dwell more towards the east, and later in proportion as they... | |
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... position with respect to a luminous body, can cast a circular shadow ; likewise all calculations of eclipses, and of the places of the planets, are made upon supposition that the earth is a sphere, and they all answer to the true times when accurately... 