Terrestrial globe

“ Strabo alone among ancient writers, so far as we at present know, treats of terrestrial globes, practically such as we find in use at the present day. He thought that a globe to be serviceable should be of large size, and his reasoning can readily be understood, for what at that time was really known of the earth’s surface was small indeed in comparison with what was unknown. Should one not make use of a sphere of large dimensions, the habitable regions (Fig. 6) , in comparison with the earth’s entire surface, would occupy but small space. ”

“ As a record of the geographical knowledge of the time, this Hondius terrestrial globe map may justly be referred to as one of the most valuable of the period.
Fig. 90. Dedication Appearing on Globe of Jodocus Hondius, 1600.
For astronomical study the celestial globe is none the less valuable and interesting than is the terrestrial for the study of geography. Its descriptive title reads: “Globus coelestis. In quo Stellae fixae omnes quae a N. viro Tycone Brahe sūma industria ac cura observatae sunt accuratissime designantur: nec non ea quae a peritis. ”

“ This globe has, on account of its great size, an advantage over all others, namely that all details on it can be given with the utmost exactness and minuteness. And those points concerning the doctrine of the primum mobilum and the study of the heavenly bodies in their relations to the position of the ecliptic and the equator and of certain other circles on the globe, are easily determined with a minimum of trouble and without any laborious effort, by the machine. ”

“ The celestial globe referred to above has represented on 179its surface the several Ptolemaic constellations, exquisitely colored, and the stars have been given names in Greek, Latin, and Arabic. The terrestrial globe map is considerably injured, especially in the polar regions, but the continental and other outlines are all clearly traceable. Three large compass roses, of ornamental pattern, are placed along the Line of Demarcation. The coast outline of Europe is, in the main, well done, as is that of Africa and the New World. ”

“ We can very conveniently study the conditions of observation at the poles of the earth, the equator, and some place in middle latitude, by using an ordinary terrestrial globe. 44 The wooden horizon of the globe is parallel to the horizon of a place at the top of the globe, which horizon we can represent by a wafer. ”

“ Again, when men are approaching the land from the sea, the parts nearest the shore-line come more and more into view, and objects which at first appeared low attain a greater elevation.”22
After the attempt had been made to determine the circumference of the earth, as was done by Eratosthenes with 7more or less satisfactory results, the thought, very naturally, was suggested of making an artificial representation of the entire earth, so far as then understood, that is, of making a terrestrial globe. ”

“ Celestial globe in which are to be seen more clearly and more distinctly set forth the stars according to their places and positions, that is, their degrees of longitude and latitude where they have been placed in the firmament by the Creator of the Universe. ”

“ On one of these should be represented all the celestial constellations, and the circles should all have their place, that is to say, not as Ptolemy represents the stars as they were located in his time, but according to the investigations of our own times, that is, about twenty degrees further east. The other should be a terrestrial globe constructed according to modern ideas, which he should always follow in his studies. He will use the first globe for a thousand and one things ”

“ The inscriptions in dark brown, perhaps originally black, are neatly written, clearly suggesting that the globe was constructed 77in the first quarter of the sixteenth century, perhaps as early as 1513 or 1515. The equator, the tropics, and the polar circles are traced in gold; the degrees of latitude and longitude are marked in red, and at intervals of ten degrees. ”

“ Terrestrial globe on which the position of the principal places on the surface of the earth are shown according to the principal observations of the most celebrated astronomers and geographers of our times by the labor of John Gabriel Doppelmayr, mathematician, professor and publisher of Nürnberg. ”

“ With the pole (north for us in the northern hemisphere) as the center of the dial face the stars appear to move in a direction the reverse of that in which the hands of a clock are made to move. The astronomer, that is, the celestial globe maker, thinks of himself as placed beyond the vaulted heavens in which the stars appear to be located, and as looking down upon this vaulted dome as on the surface of his celestial globe. ”

“ As we have now passed in review the whole sphere of inorganic terrestrial life, and have briefly considered our planet with reference to its form, its internal heat, its electro-magnetic tension, its phenomena of polar light, the volcanic reaction of its interior on its variously composed solid crust, and, lastly, the phenomena of its two-fold envelopes — the aerial and liquid ocean — we might, in accordance with the older method of treating physical geography, consider that we had completed our descriptive history of the globe. ”

“ The twelve gores of the map have been mounted so as to join at the north and south poles of the ecliptic, there however being a small covering disc at each pole, so frequently employed since Mercator’s day, the globe itself being made to revolve on its equatorial axes. ”

“ Ao 1750 Cum Privilegio.” “Cosmotherium. That this terrestrial globe might equal (be a companion to) our celestial globe and entirely new, be assured that after correcting the errors of those who have preceded us, not only the longitudes and latitudes of each sphere have been corrected by the repeated observations of later astronomers, but likewise no (globe) has appeared more carefully corrected in the printing. This most recent globe therefore make use of until in a larger form at my own expense we Gerhard and Leonhard Valk, engravers shall construct others. Amsterdam. ”

“ The celestial globe revolves on the axis of the equator, the gores being made to terminate at the poles of the ecliptic. Constellations are represented so far as they have been named by astronomers to date, the several figures being artistically drawn, on which color has been somewhat sparingly employed. ”

“ For this purpose however a large globe is necessary since the section mentioned, though9 but a very small portion of the entire sphere, must be capable of containing properly all the regions of the habitable earth and of presenting an accurate view of them to those who wish to consult it. Any one who is able will certainly do well to obtain such a globe. But it should have a diameter of not less than ten feet; those who can not obtain a globe of this size, or one nearly as large, had better draw their charts on a plane surface of not less than seven feet. ”

“ The modern age opens with an interest in the expansion of Europe overland eastward, with this interest soon to be followed by greater enthusiasm in transoceanic expansion. With the rapidly increasing knowledge concerning the hitherto unknown or but little known regions of the earth came a desire for better map making, came an interest intelligently directed in the construction of terrestrial globes on which the newly discovered parts might be represented in their relative positions as they are on the real spherical earth. ”

“ This globe of marble is not so mounted as to permit its revolution, resting as it does upon the shoulders of the mythical Atlas, yet in its representation of the figures of the several constellations, then recognized by astronomers, it differs practically but little from the celestial globes, that is, solid spheres, constructed a millennium and a half later.182 We cannot, however, draw the conclusion from this one example that such globes were generally looked upon as practical instruments for use in astronomical studies, yet there clearly were those who did so regard them. ”

“ In the appended tabulated list of globes and globe makers, it will be noted that the makers have been listed alphabetically, that the kind of globe has been indicated, whether terrestrial, celestial or armillary sphere, with the date given, though sometimes only approximately, and with the diameter of each globe recorded in centimeters, so far as obtainable with an acceptable degree of accuracy, fractions thereof being omitted, these same measurements being repeated in the text reference to each individual example or edition. ”

“ Yet there was no century, not even in those ages we happily are learning to call no longer dark, that geography and astronomy were not studied and taught, and globes celestial as well as armillary spheres, if not terrestrialxxiii globes, were constructed. The Venerable Bede, Notker Labeo, Pope Sylvester I, the Emperor Frederick II, and King Alfonso of Castile, not to name many others of perhaps lesser significance, displayed an interest in globes and globe making. ”

“ Excepting slight damage to its horizon circle the globe may be said to be in an excellent state of preservation. In a neat cartouch in the North Pacific is the title legend reading, “Globus terrestris in quo locorum insigniorum situs terraeque facies secundum praecipuas celeberrimorum nostri aevi Astronomorum et Geographorum observationes opera Joh. ”

“ If the earth were brought down in size to an ordinary large school globe, a piece of rough brown paper covering it might well represent the thickness of this earth-crust, with which the science of geology has to do. And the whole of the globe, this earth of ours, is but one tiny planet in the great Solar System. And the centre of that Solar System, the blazing sun, though equal in size to more than a million earths, is yet himself but one star amid millions of twinkling stars, scattered broadcast through the universe. ”

“ But now all our eyes were on Earth ahead, since now through the drifting cloud-masses that floated in its atmosphere we could make out the great bluish globe's surface features, could see that western Europe and North Africa lay in the sunlight in that crescent of light at Earth's side, but that the North and South Americas lay in the shade of Earth's outer side, in the darkness of night. ”

“ We have abundance of evidence that the Sun moves daily round and over the Earth in circles concentric with the northern region over which hangs the North Star; but, since the theory of the Earth being a globe is necessarily connected with the theory of its motion round the Sun in a yearly orbit, it falls to the ground when we bring forward the evidence of which we speak, and, in so doing, forms a proof that the Earth is not a globe. ”

“ We must imagine the colony of planets to which we belong as a compact little family swimming in an immense void. At distances which would take our shell, not hundreds, but millions [Pg 11] of years to traverse, we reach the stars—or rather, a star, for the distances between stars are as great as the distance between the nearest of them and our Sun. The Earth, the planet on which we live, is a mighty globe bounded by a crust of rock many miles in thickness; the great volumes of water which we call our oceans lie in the deeper hollows of the crust. ”

“ Not only can they map out to a nicety the paths of the planets careering through it like islands floating through a sea of ether, but they can look backward and tell the exact spot where each globe was at any moment of the remote past, or forward, and point to the place where each will be found at any given moment of the remote future. ”

“ Whether our planet was the first, third, or last formed, no mention is made. The vision is designed henceforth to unfold what we need to know of Earth, not found in nature. Our globe in chaos of gases, sweeping around the sun in the form of a ring, is evening, being “without form.” Our globe in steam, having a firmament of its own, is in shape, and this is “morning.” ”

“ Thus we draw the important inference that if, the oceans having been removed, we were then to remove from the earth’s surface a rind two miles thick—a thickness which, it is to be observed, is only the two-thousandth part of the earth’s radius—we should transform the earth into a globe which, while it still retained appreciably the same size, would have such a temperature that even the coolest spot would be as hot as boiling water. ”

“ We read in the inspired book, or collection of books, called The Bible, nothing at all about the Earth being a globe or a planet, from beginning to end, but hundreds of allusions there are in its pages which could not be made if the Earth were a globe, and which are, therefore, said by the astronomer to be absurd and contrary to what he knows to be true! ”

“ With a map of the Earth in its true form all difficulty is done away with, and ships may be conducted anywhere with perfect safety. This, then, is a very important practical proof that the Earth is not a globe. ”

“ Here again it is well to remember the small size of the planet, from which we may infer that it has progressed through its physical evolution at a rate more rapid than would be possible with a larger globe like the earth. The sea is constantly wearing down the land, but by upheavals arising from the intensely heated condition of the interior of our globe the land is still able to maintain itself above water. ”

“ Maybe, they envy us our globe, a dazzling dwelling-place whose splendor radiates through space; they see its greenish clarity varying with the extent of cloud that veils its seas and continents, and they observe its motion of rotation, by which all the countries of our planet are revealed in succession to its admirers. ”