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Updated: June 11, 2025
It is difficult to determine whether Bracciolini did not give the name of "Mare Rubrum" to any large body of water which he believed communicated with the Indian Ocean, which he may have thought was the case with the Caspian, in common with Strabo, and before Strabo Eratosthenes, and after Strabo Pomponius Mela: or Bracciolini may have thought that the Caspian had no communication with any other sea, was perfectly mediterranean, and that being in the midst of land, it ought to have the same name given to it as the lndian Ocean, that neither mingled with nor joined any other sea.
The shadow of a perpendicular column of the height of 100 feet would have been 9/10ths of an inch." We are also indebted to Eratosthenes for the first regular parallel of latitude, and also for tracing a meridian. His parallel of latitude began at the Straits of Gibraltar, and passed eastward through Rhodes to the mountains of India; the intermediate places being carefully set down.
Science, as developed by Aristotle and Hippocrates, the father of medicine, was carried forward by many others, including Theophrastus, the able successor of Aristotle; Euclid, the first great geometer; Eratosthenes and Hipparchus, the astronomers; and, latest of ancient scientists, Ptolemy, whose works on astronomy and geography became the text-books of the middle-age schools.
Except as a known object, it is only traceable under very oblique illumination, and even then some attention is required before its very attenuated wall can be followed all round. It is most prominent on the W., where it apparently consists of a S. extension of the Eratosthenes mountain-arm, and is associated with a number of little craters and pits.
Among the great prelates, who was there to stand in the place of those men whose achievements had glorified the human race? Who was to succeed to Archimedes, Hipparchus, Euclid, Herophilus, Eratosthenes? who to Plato and Aristotle?
But it was possible for Eratosthenes to say, first, that he did not meet him; secondly, that he did not see him; for these things had neither proof nor trial, so that they would not have been investigated, even by those wishing to be enemies. 32.
The Apennines, however, are by far the most magnificent range on the visible surface, including as they do some 3000 peaks, and extending in an almost continuous curve of more than 400 miles in length from Mount Hadley, on the north, to the fine ring-plain Eratosthenes, which forms a fitting termination, on the south.
A vacuum is that which is void of anything that may be called a body; place is that which is possessed by a body; a space that which is partly filled with a body, as a cask with wine. In the sense of Pythagoras, time is that sphere which encompasses the world. Plato says that it is a movable image of eternity, or the interval of the world's motion. Eratosthenes, that it is the solar motion.
For, in fact, the orations which were spoken by him had much more of boldness and confidence in them than those that he wrote, if we may believe Eratosthenes, Demetrius the Phalerian, and the Comedians. Eratosthenes says that often in his speaking he would be transported into a kind of ecstasy, and Demetrius, that he uttered the famous metrical adjuration to the people,
Come now, I will show you about Theramenes as briefly as I can, and I request you to hear me, both on behalf of myself and the city. And let no one think that I am accusing Theramenes while Eratosthenes is on trial. For I learn that he will make this defense, that he was a friend of his, and took part in the same acts. 63. For the opposite has happened to the city from what was natural.
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