The Planet Earth: An Astronomical Introduction to GeographyMacmillan, 1894 - Всего страниц: 108 |
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Стр. 1
... sides are the stars , each a sun comparable to our own in magni- tude , but sunk so deep in the depths of space that it appears as a lucid point . Though it may seem a hopeless task to attempt to count the stars , in reality the number ...
... sides are the stars , each a sun comparable to our own in magni- tude , but sunk so deep in the depths of space that it appears as a lucid point . Though it may seem a hopeless task to attempt to count the stars , in reality the number ...
Стр. 5
... side , leads to this group , the top of the W being directed towards the Pole . Whatever the position in which the Great Bear is seen , Cassiopeia appears on the opposite side of the Pole . η Between the Great Bear and the " Guards ...
... side , leads to this group , the top of the W being directed towards the Pole . Whatever the position in which the Great Bear is seen , Cassiopeia appears on the opposite side of the Pole . η Between the Great Bear and the " Guards ...
Стр. 8
... sides of equal length . They are all bright stars , so there should be no difficulty in finding them . The constellation Gemini or the Twins next claims our attention . It lies to the north - east of Orion . A line from Procyon carried ...
... sides of equal length . They are all bright stars , so there should be no difficulty in finding them . The constellation Gemini or the Twins next claims our attention . It lies to the north - east of Orion . A line from Procyon carried ...
Стр. 11
... side of the W in Cassiopeia , and the square will be found . By connecting the two stars which form the western edge of the square , and producing the line southwards for about three times the distance , Fomalhaut , a solitary bright ...
... side of the W in Cassiopeia , and the square will be found . By connecting the two stars which form the western edge of the square , and producing the line southwards for about three times the distance , Fomalhaut , a solitary bright ...
Стр. 12
... side of the W in Cassiopeia most distant from the Pole , indicates the position of this star . And it is worth remark that the stars on this line appear due south at the same time . The line connecting them happens to lie very close to ...
... side of the W in Cassiopeia most distant from the Pole , indicates the position of this star . And it is worth remark that the stars on this line appear due south at the same time . The line connecting them happens to lie very close to ...
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The Planet Earth: An Astronomical Introduction to Geography Sir Richard Gregory Полный просмотр - 1894 |
The Planet Earth: An Astronomical Introduction to Geography Sir Richard Gregory Полный просмотр - 1894 |
The Planet Earth: An Astronomical Introduction to Geography Sir Richard Gregory Полный просмотр - 1894 |
Часто встречающиеся слова и выражения
Aldebaran Algol altitude Andromeda angle angular distance apparent motion apparent path appears to travel astronomers attraction Betelgeuse bright star Cassiopeia celestial equator celestial pole celestial sphere centre circle circumference completely round constellation Copernican theory Copernicus degrees Denebola diameter direction distance round diurnal motion due south earth east eastern horizon ecliptic ellipse equal fact fixed Foucault's pendulum globe Heaven Heaven Heaven hence inferior planets journey Jupiter known lamp latitude lead ball length light loops luminary Mars mass measure meridian miles minutes movement moving round night noonday north and south north celestial pole object observed opposite orbit Orion pass pendulum planet moves polar compression Pole-Star position precession Procyon Ptolemy Regulus revolution revolve round rising and setting round the sun Saturn seen side spinning spring equinox stationary point summer solstice sun's suppose surface telescope travel round triangle twilight visible zodiac
Популярные отрывки
Стр. 5 - I could pray to move, prayers would move me: But I am constant as the northern star, Of whose true-fix'd and resting quality There is no fellow in the firmament.
Стр. 59 - 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,
Стр. 41 - That very law* which moulds a tear, And bids it trickle from its source, That law preserves the earth a sphere, And guides the planets in their course.
Стр. 63 - 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.
Стр. 62 - Astronomy has corrected this delusion of human vanity : and man now reluctantly confesses that the stars are worlds, larger and more glorious than his own, — that the earth on which he crawls is a scarce visible speck on the vast chart of creation.
Стр. 61 - Thro' cells of madness, haunts of horror and fear, That I come to be grateful at last for a little thing : My mood is changed, for it fell at a time of year When the face of night is fair on the dewy downs, And the shining daffodil dies, and the Charioteer And starry Gemini hang like glorious crowns Over Orion's grave low down in the west...
Стр. 104 - Every particle in the universe attracts every other particle with a force which is directly proportional to the product of the masses of the particles and inversely proportional to the square of the distance between them.
Стр. 105 - The squares of the periods of the planets are proportional to the cubes of their mean distances from the sun ; that is, ti2 : k2 ,• ,• ai3 ,• (h3This is the so-called harmonic law.
Стр. 62 - Man is arrogant in proportion to his ignorance. Man's natural tendency is to egotism. Man, in his infancy of knowledge, thinks that all creation was formed for him. For several ages he saw in the countless worlds that sparkle through space like the bubbles of a shoreless ocean only the petty candles, the household torches, that Providence had been pleased to light for no other purpose but to make the night more agreeable to man.
Стр. 56 - The specific gravity is the ratio of the weight of a substance to the weight of an equal volume of water.