You are here

قراءة كتاب Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work

تنويه: تعرض هنا نبذة من اول ١٠ صفحات فقط من الكتاب الالكتروني، لقراءة الكتاب كاملا اضغط على الزر “اشتر الآن"

‏اللغة: English
Recreations in Astronomy
With Directions for Practical Experiments and Telescopic Work

Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work

تقييمك:
0
No votes yet
المؤلف:
دار النشر: Project Gutenberg
الصفحة رقم: 3

November Meteors and the Comet of 1866

52. Aspects of Remarkable Comets 53. Phases and Apparent Dimensions of Venus 54. The Earth and Moon in Space 55. Aurora as Waving Curtains 56. Tide resulting from Centrifugal Motion 57. Lunar Landscape 58. Telescopic View of the Moon 59. Illumination of Lunar Craters and Peaks 60. Lunar Crater "Copernicus" 61. Eclipses: Shadows of Earth and Moon 62. Apparent Sizes of Mars, seen from the Earth 63. Jupiter 64. Various Positions of Jupiter's Satellites 65. View of Saturn and his Rings 66. Perturbations of Uranus 67. Map: Circumpolar Constellations 68. Map of Constellations on the Meridian in December 69. Map of Constellations on the Meridian in January 70. Map of Constellations on the Meridian in April 71. Map of Constellations on the Meridian in June 72. Map of Constellations on the Meridian in September 73. Map of Constellations on the Meridian in November 74. Southern Circumpolar Constellations 75. Aspects of Double Stars 76. Sprayed Star Cluster below η in Hercules 77. Globular Star Cluster in the Centaur 78. Great Nebula about θ Orionis 79. The Crab Nebula above ζ Tauri 80. The Ring Nebula in Lyra 81. Showing Place of Ring Nebula 82. The Horizontal Pendulum   COLORED PLATE REPRESENTING VARIOUS SPECTA MAPS TO FIND THE STARS

I.

CREATIVE PROCESSES.

"In the beginning God created the heaven and the earth. And the earth was without form, and void; and darkness was upon the face of the deep."—Genesis i. 1, 2.

"Not to the domes, where crumbling arch and column
  Attest the feebleness of mortal hand,
But to that fane, most catholic and solemn,
  Which God hath planned,—
To that cathedral, boundless as our wonder,
  Whose quenchless lamps the sun and stars supply;
Its choir the winds and waves, its organ thunder,
  Its dome the sky."    H. W. LONGFELLOW.

"The heavens are a point from the pen of His perfection;
The world is a rose-bud from the bower of His beauty;
The sun is a spark from the light of His wisdom;
And the sky a bubble on the sea of His power."
  SIR W. JONES.

RECREATIONS IN ASTRONOMY.


I.

CREATIVE PROCESSES.

During all the ages there has been one bright and glittering page of loftiest wisdom unrolled before the eye of man. That this page may be read in every part, man's whole world turns him before it. This motion apparently changes the eternally stable stars into a moving panorama, but it is only so in appearance. The sky is a vast, immovable dial-plate of "that clock whose pendulum ticks ages instead of seconds," and whose time is eternity. The moon moves among the illuminated figures, traversing the dial quickly, like a second-hand, once a month. The sun, like a minute-hand, goes over the dial once a year. Various planets stand for hour-hands, moving over the dial in various periods reaching up to one hundred and sixty-four years; while the earth, like a ship of exploration, sails the infinite azure, bearing the observers to different points where they may investigate the infinite problems of this mighty machinery.

This dial not only shows present movements, but it keeps the history of uncounted ages past ready to be read backward in proper order; and it has glorious volumes of prophecy, revealing the far-off future to any man who is able to look thereon, break the seals, and read the record. Glowing stars are the alphabet of this lofty page. They combine to form words. Meteors, rainbows, auroras, shifting groups of stars, make pictures vast and significant as the armies, angels, and falling stars in the Revelation of St. John—changing and progressive pictures of infinite wisdom and power.

Men have not yet advanced as far as those who saw the pictures John describes, and hence the panorama is not understood. That continuous speech that day after day uttereth is not heard; the knowledge that night after night showeth is not seen; and the invisible things of God from the creation of the world, even his eternal power and Godhead, clearly discoverable from things that are made, are not apprehended.

The greatest triumphs of men's minds have been in astronomy—and ever must be. We have not learned its alphabet yet. We read only easy lessons, with as many mistakes as happy guesses. But in time we shall know all the letters, become familiar with the combinations, be apt at their interpretation, and will read with facility the lessons of wisdom and power that are written on the earth, blazoned in the skies, and pictured by the flowers below and the rainbows above.

In order to know how worlds move and develop, we must create them; we must go back to their beginning, give their endowment of forces, and study the laws of their unfolding. This we can easily do by that faculty wherein man is likest his Father, a creative imagination. God creates and embodies; we create, but it remains in thought only. But the creation is as bright, strong, clear, enduring, and real, as if it were embodied. Every one of us would make worlds enough to crush us, if we could embody as well as create. Our ambition would outrun our wisdom. Let us come into the high and ecstatic frame of mind which

Pages