NebulæNebulæ.The Use of Telescopes.Oneof the inventions most important to science that ever was made, was that of thetelescope. The common telescope is usually called a spy-glass. It is used to look at distant objects, and it serves to bring them, apparently, nearer to view. At sea, the spy-glass is of the greatest use, for it enables the masters of vessels distinctly to see the land, which would scarcely be visible to the naked eye. He can also see vessels which are distant, and be able to tell what kind of vessels they are, what rigging they have, what colors they carry,&c., long before these things could be discovered by the naked eye.But the telescopes, made for looking at the heavenly bodies, though apparently less useful than the common spy-glass, have still revealed to us many interesting and wonderful, and, indeed, useful, truths. By means of these, we are better acquainted with the moon; we now know that it is a rough planet of mountains and valleys, and, though resembling our earth, that it is without inhabitants, water or atmosphere.By means of telescopes we know thatJupiter, which to the naked eye seems but a little star, is a great world, with four moons, and, what is curious, we know that these moons keep the same face always turned to the planet, just as our moon does to the earth. We know that Saturn, which also seems like a little star, is a vast world, with seven moons, and a wonderful belt of light, encircling it and revolving around it. These are some of the wonders revealed to us by the telescope.But there are still others quite as interesting. Beyond the stars which we can see with the naked eye, the telescope unfolds to the view thousands upon thousands of others, the very existence of which we had never known but for this instrument. Nor is even this all—some of the stars are not single, but two or three are close together, and evidently revolve around one another. These are calledbinary, or double stars. Astronomers have observed many thousands of these wonderful worlds, far away in the boundless regions of space.You have all seen what is called the Milky-way, a broad, irregular band of light crossing the entire heavens. The ancient poets represented this as the milk spilt by the nurse of their god Mercury, and from this poor and paltry conception, it derived its name. Now, let us remark what the telescope says the milky-way is—an immense number, myriads upon myriads, of worlds! What a glorious view does this unfold to us of that God who has not only made the heavens, but us also!But beside stars of various magnitudes, revealed by the telescope, there are other objects, callednebulæ, from their cloud-like appearance. These are of various sizes and forms, some being without defined shape, some being circular, some long and pointed, and one bearing a resemblance to a dumb bell. The engraving at the head of this article will give some idea of the appearance of these mysterious bodies, which are seen, many millions of miles off in the far regions of space.The idea has been suggested, and with good reason, that thesenebulæare particles of matter, thin almost as air, which are in the process of being condensed and formed into worlds. We know that a detached drop of water forms itself, at once, into a little globe, by that principle which pervades all matter—called gravitation; and we may suppose that these different particles forming the nebulæ, being attracted to each other, will gradually assume a spherical form, and that, in the rush of these particles toward each other, currents will be created, which will give the globe a revolving motion. Such are the curious speculations of the astronomers, and there is some reason to think them correct. What a vast conception does this view of things unfold—for it seems that not only are there countless millions of worlds already formed, all around us, but that, in the distance, the Almighty is still carrying on the stupendous process of manufacturing other worlds! Far—far beyond the reach of the naked eye—far beyond the reach of the searching telescope—far beyond even the daring stretch of the imagination, into the unfathomed night of space—there, there, is the Almighty lighting up the regions of nothingness with existence,bidding new suns to shine in the chambers of silence and death—and thus extending his dominions and spreading abroad the rays of his glory. If the angels and good spirits are permitted to look upon these things—to accompany the Creator in his mighty movements to look upon his proceedings—to fathom, in some degree, his designs—to participate in his works—to co-operate in his views—and to do all this in that blissful harmony which love to God creates—O, how glorious must be that happiness which they enjoy!
NebulæNebulæ.
Nebulæ.
Oneof the inventions most important to science that ever was made, was that of thetelescope. The common telescope is usually called a spy-glass. It is used to look at distant objects, and it serves to bring them, apparently, nearer to view. At sea, the spy-glass is of the greatest use, for it enables the masters of vessels distinctly to see the land, which would scarcely be visible to the naked eye. He can also see vessels which are distant, and be able to tell what kind of vessels they are, what rigging they have, what colors they carry,&c., long before these things could be discovered by the naked eye.
But the telescopes, made for looking at the heavenly bodies, though apparently less useful than the common spy-glass, have still revealed to us many interesting and wonderful, and, indeed, useful, truths. By means of these, we are better acquainted with the moon; we now know that it is a rough planet of mountains and valleys, and, though resembling our earth, that it is without inhabitants, water or atmosphere.
By means of telescopes we know thatJupiter, which to the naked eye seems but a little star, is a great world, with four moons, and, what is curious, we know that these moons keep the same face always turned to the planet, just as our moon does to the earth. We know that Saturn, which also seems like a little star, is a vast world, with seven moons, and a wonderful belt of light, encircling it and revolving around it. These are some of the wonders revealed to us by the telescope.
But there are still others quite as interesting. Beyond the stars which we can see with the naked eye, the telescope unfolds to the view thousands upon thousands of others, the very existence of which we had never known but for this instrument. Nor is even this all—some of the stars are not single, but two or three are close together, and evidently revolve around one another. These are calledbinary, or double stars. Astronomers have observed many thousands of these wonderful worlds, far away in the boundless regions of space.
You have all seen what is called the Milky-way, a broad, irregular band of light crossing the entire heavens. The ancient poets represented this as the milk spilt by the nurse of their god Mercury, and from this poor and paltry conception, it derived its name. Now, let us remark what the telescope says the milky-way is—an immense number, myriads upon myriads, of worlds! What a glorious view does this unfold to us of that God who has not only made the heavens, but us also!
But beside stars of various magnitudes, revealed by the telescope, there are other objects, callednebulæ, from their cloud-like appearance. These are of various sizes and forms, some being without defined shape, some being circular, some long and pointed, and one bearing a resemblance to a dumb bell. The engraving at the head of this article will give some idea of the appearance of these mysterious bodies, which are seen, many millions of miles off in the far regions of space.
The idea has been suggested, and with good reason, that thesenebulæare particles of matter, thin almost as air, which are in the process of being condensed and formed into worlds. We know that a detached drop of water forms itself, at once, into a little globe, by that principle which pervades all matter—called gravitation; and we may suppose that these different particles forming the nebulæ, being attracted to each other, will gradually assume a spherical form, and that, in the rush of these particles toward each other, currents will be created, which will give the globe a revolving motion. Such are the curious speculations of the astronomers, and there is some reason to think them correct. What a vast conception does this view of things unfold—for it seems that not only are there countless millions of worlds already formed, all around us, but that, in the distance, the Almighty is still carrying on the stupendous process of manufacturing other worlds! Far—far beyond the reach of the naked eye—far beyond the reach of the searching telescope—far beyond even the daring stretch of the imagination, into the unfathomed night of space—there, there, is the Almighty lighting up the regions of nothingness with existence,bidding new suns to shine in the chambers of silence and death—and thus extending his dominions and spreading abroad the rays of his glory. If the angels and good spirits are permitted to look upon these things—to accompany the Creator in his mighty movements to look upon his proceedings—to fathom, in some degree, his designs—to participate in his works—to co-operate in his views—and to do all this in that blissful harmony which love to God creates—O, how glorious must be that happiness which they enjoy!