Fourteen Weeks in Descriptive Astronomy |
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Page 59
The spots do not influence the fruitfulness of the season. — Sir W. Herschel first
advanced the idea that years of abundant spots would be years also of plentiful
harvest. This is not now generally received. What two years could be more ...
The spots do not influence the fruitfulness of the season. — Sir W. Herschel first
advanced the idea that years of abundant spots would be years also of plentiful
harvest. This is not now generally received. What two years could be more ...
Page 73
No human being could reside on the former, while we cannot conceive of any
polar inhabitant who could endure the. SIZE OP SUN AS SESN FROM TBE
PLANETb. PHASES Or AN INFERIOR PLANET. ORBIT AND SEASONS OF
MERCURY.
No human being could reside on the former, while we cannot conceive of any
polar inhabitant who could endure the. SIZE OP SUN AS SESN FROM TBE
PLANETb. PHASES Or AN INFERIOR PLANET. ORBIT AND SEASONS OF
MERCURY.
Page 78
Motions of a Superior Planet. — The superior planet moves in an orbit which
entirely surrounds that of the earth. "When the earth is at E. PHASES Or AN
INFERIOR PLANET. ORBIT AND SEASONS OF MERCURY. zones overlap each
other ;.
Motions of a Superior Planet. — The superior planet moves in an orbit which
entirely surrounds that of the earth. "When the earth is at E. PHASES Or AN
INFERIOR PLANET. ORBIT AND SEASONS OF MERCURY. zones overlap each
other ;.
Page 86
... earth, its weight is nearly -fa that of the earth, and a stone let drop upon its
surface would fall 1\ feet the first second. Its specific gravity is about that of tin. A
pound weight removed to Mercury would weigh only about seven ounces.
Seasons.
... earth, its weight is nearly -fa that of the earth, and a stone let drop upon its
surface would fall 1\ feet the first second. Its specific gravity is about that of tin. A
pound weight removed to Mercury would weigh only about seven ounces.
Seasons.
Page 87
... but each zone changes its character twice during the Mercurial year, or eight-
times during the terrestrial one. An inhabitant of Mercury must be accustomed to
the most sudden and violent vicissitudes. ORBIT AND SEASONS OF MERCURY.
... but each zone changes its character twice during the Mercurial year, or eight-
times during the terrestrial one. An inhabitant of Mercury must be accustomed to
the most sudden and violent vicissitudes. ORBIT AND SEASONS OF MERCURY.
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Common terms and phrases
ancients aphelion appearance Aries astronomers atmosphere axis bright brilliant Canis Minor Capricornus Cassiopeia cause celestial Celestial Sphere centre Cepheus circle color comet conjunction constellation Cor Caroli dark Describe diameter disk earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavenly bodies heavens Herschel horizon inclined inferior inferior conjunction inferior planet Jupiter latitude length light luminous lunar Lyra magnitude Mars mean distance Mercury meridian meteors miles moon's motion move naked eye nearly nebulae Neptune night node north pole orbit Orion parallax pass path penumbra perihelion Perseus Pisces planet Polaris precession rays revolve ring rising Saturn seasons seen shine side sidereal sidereal day solar day solar system solstice space sphere spots summer sun's surface synodic revolution tance Taurus telescope theory tion umbra Uranus Ursa Major Ursa Minor varies velocity Venus vernal equinox visible winter Zodiac
Popular passages
Page 2 - One God, one law, one element, And one far-off divine event, To which the whole creation moves.
Page 129 - ... while the Earth remaineth seed-time and harvest, and cold and heat, and summer and winter, and day and night shall not cease.
Page 283 - That nothing walks with aimless feet ; That not one life shall be destroyed, Or cast as rubbish to the void, When God hath made the pile complete...
Page 236 - Her nails are sharpen'd into pointed claws, Her hands bear half her weight, and turn to paws ; Her lips, that once could tempt a god, begin To grow distorted in an ugly grin. And...
Page 289 - A solar day is the interval between two successive passages of the sun across the meridian of any place. If the earth were stationary in its orbit, the solar day would be of the same length as the sidereal ; but while the earth is turning around on its axis, it is going forward at the rate a'i 360° in a year, or about 1° per day.
Page 34 - Law of gravitation: Every particle of matter in the universe attracts every other particle with a force varying directly as the product of their masses and inversely as the square of the distance between them.
Page 29 - If you forgive me, I rejoice ; if you are angry, I can bear it. The die is cast, the book is written, to be read either now or by posterity, I care not which. It may well wait a century for a reader, as God has waited six thousand years for an observer.
Page 134 - Were it not for the reflective and scattering power of the atmosphere, no objects would be visible to us out of direct sunshine; every shadow of a passing cloud would be pitchy darkness ; the stars would be visible all day, and every apartment, into which the sun had not direct admission, would be involved in nocturnal obscurity.
Page 192 - 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 31 - Nature, such as the seven metals, &,c., which it were tedious to enumerate, we gather that the number of planets is necessarily seven. Moreover, the satellites are invisible to the naked eye, and therefore can exercise no influence over the earth, and therefore would be useless, and therefore do not exist.
Bibliographic information
| Title | Fourteen Weeks in Descriptive Astronomy Steele's series in the natural sciences |
| Publisher | A.S. Barnes, 1874 |
| Original from | Harvard University |
| Digitized | 4 Mar 2008 |
| Length | 336 pages |
| Export Citation | BiBTeX EndNote RefMan |