 | 1803 - 750 pages
...The tail of a comet does not fpread itfelf fideways, nor does the electric matter. Hence he fuppofes the tails of comets, the Aurora Borealis, and the electric fluid to be matter of the fame kind. " 158. In refpeft to the nature of comets, Sir L Newton obferver, that they... | |
 | John Pinkerton - Africa - 1804 - 694 pages
...like the appearance of the Aurora Borealis, which, from its great altitude, may be considered to be in as perfect a vacuum as we can make. The electric...being affected by them. The tail of a comet does not spread itself sideways, nor does the electric matter. Hence, he supposes the tails of comets, the Aurora... | |
 | Samuel Vince - Astronomy - 1811 - 260 pages
...like the appearance of the aurora borealis, which, from its great altitude, may be considered to be in as perfect a vacuum as we can make. The electric...the aurora borealis, and the electric fluid, to be matter of the same kind. We may . add, as a further confirmation of this opinion, that the comet in... | |
 | Samuel Vince - Astronomia - 1814
...like the appearance of the aurora borealis, which, from its great altitude, may be considered to be in as perfect a vacuum as we can make. The electric...sideways, nor does the electric matter. Hence, he sup.5 poses the tails of comets, the aurora borealis, and the electric fluid, to be matter of the same... | |
 | Samuel Vince - Hydrostatics - 1820 - 472 pages
...like the appearance of the aurora borealis, which, from it's great altitude, may be considered to be in as perfect a vacuum as we can make. The electric...the aurora borealis, and the electric fluid, to be matter of the same kind. We may add, as a further confirmation of this opinion, that the comet in 1607... | |
 | John Vose - Astronomy - 1827 - 262 pages
...has the tail of a comet. The atmosphere is known to abound with electric matter, and the appeara ce of the electric matter in vacuo resembles exactly...the electric fluid, to be the same kind of matter " In confirmation of this hypothesis, it may be added, that many astronomers have observed an undulatory... | |
 | James Ryan - Astronomy - 1827 - 408 pages
...comet by the Sun, is increased by its duration, and by the proximity to this luminary. Dr. Hamilton supposes the tails of comets, the aurora borealis, and the electric fluid to be matter of the same kind, lie supports this opinion by many strong arguments, which are found in his... | |
 | John BRINKLEY (Bishop of Cloyne.) - Astronomy - 1836 - 334 pages
...controverted by several authors, and very ably by Dr. Hamilton, late Bishop of Ossory. Dr. Hamilton supposes the tails of comets, the aurora borealis, and the electric fluid, to be matter of the same kind. He supports this opinion by many strong arguments, which are found in his... | |
 | Leonard Dunnell Gale - Physics - 1838 - 308 pages
...violence of the heat to which they are exposed in their near approaches to the Sun. Dr. Hamilton considers the tails of comets, the aurora borealis, and the electric fluid, to be matter of the same kind. Sir Richard Philips published in the Monthly Magazine the opinion, that this... | |
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The atmosphere is known to abound with electric matter, and the appearance of the electric matter in vacuo is exactly like the appearance of the aurora borealis, which, from its great altitude, may be considered to be in as perfect a vacuum as we can... 