Student's Class Book of Astronomy

Front Cover
Relfe Bros, 1873 - 224 pages
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Page 66 - And God said, Let there be lights in the firmament of the heaven to divide the day from the night ; and let them be for signs and for seasons, and for days,
Page 155 - that every particle of matter in the universe attracts every other particle, with a force whose direction is that of the line joining the two, and whose magnitude is directly as the product of their masses, and inversely as the square of their distances from each other.
Page 185 - The Ram, the Bull, the heavenly Twins, And next the Crab the Lion shines, The Virgin and the Scales ; The Scorpion, Archer, and He-goat, The Man that holds the watering-pot, And Fish with glittering tails.
Page 138 - The squares of the periodic times of the planets are proportional to the cubes of their mean distances from the Sun.
Page 195 - ... a red and a green, or a yellow and a blue one — must afford a planet circulating about either; and what charming contrasts and "grateful vicissitudes," — a red and a green day, for instance, alternating with a white one and with darkness, — might arise from the presence or absence of one or other, or both, above the horizon.
Page 89 - We see it as Columbus saw America from the shores of Spain. Its movements have been felt, trembling along the far-reaching line of our analysis, with a certainty hardly inferior to that of ocular demonstration.
Page 166 - It has been found that, with respect to any two planets, the squares of the times of revolutions are to each other in the same proportion as the cubes of their mean distances,— a most surprising result, for the discovery of which the world was indebted to the illustrious Kepler. Sir John Herschel truly observes...
Page 213 - rays, and it has a proportionately high power of absorption for that kind of light ; but for it alone. And we see that every substance which emits at a given temperature certain kinds of light must possess the power, at that same temperature, of absorbing the same kinds of...
Page 185 - These twelve parts are called the signs of the zodiac and are named after the constellations which occupy them. The names of the signs of the zodiac are: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricornus, Aquarius, and Pisces.
Page 191 - To drop a pea at the end of every mile of a voyage on a limitless ocean to the distance of the nearest Fixed Star, would require a fleet of 10,000 ships each of 600 tons burthen, all starting with a full cargo of peas.

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