This link has been bookmarked by 34 people . It was first bookmarked on 11 Jan 2008, by atch18.
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03 Apr 14
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01 Jun 13
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Leonardo's scientific and technical observations are found in his handwritten manuscripts, of which over 4000 pages survive, including the one pictured on the right, showing some rock formations (click on it to view an enlargement). It seems that Leonardo planned to publish them as a great encyclopedia of knowledge, but like many of his projects, this one was never finished. The manuscripts are difficult to read: not only did Leonardo write in mirror-image script from right to left, but he used peculiar spellings and abbreviations, and his notes are not arranged in any logical order. After his death his notes were scattered to libraries and collections all over Europe. While portions of Leonardo's technical treatises on painting were published as early as 1651, the scope and caliber of much of his scientific work remained unknown until the 19th century. Yet his geological and paleontological observations and theories foreshadow many later breakthroughs.
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30 May 13
Alan November"Leonardo was far more than a great artist: he had one of the best scientific minds of his time. He made painstaking observations and carried out research in fields ranging from architecture and civil engineering to astronomy to anatomy and zoology to geography, geology and paleontology."
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29 Jan 13
Daniel ThompsonGives a biographical description of the epitome of the "Renaissance Man."
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22 May 12
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19 Apr 12
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Leonardo was and is best known as an artist, the creator of such masterpieces as the Mona Lisa, Madonna of the Rocks, and The Last Supper.
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He made painstaking observations and carried out research in fields ranging from architecture and civil engineering to astronomy to anatomy and zoology to geography, geology and paleontology.
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handwritten manuscripts
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24 Mar 12
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04 Dec 11
ShayAnne BrownART 101 FINAL
Leonardo da Vinci Biography -
14 Nov 11
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1452-
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he had one of the best scientific minds of his time
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architecture and civil engineering to astronomy to anatomy and zoology to geography, geology and paleontology
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native north Ital
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17 Oct 11
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02 Oct 11
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Leonardo was and is best known as an artist, the creator of such masterpieces as the Mona Lisa, Madonna of the Rocks, and The Last Supper. Yet Leonardo was far more than a great artist: he had one of the best scientific minds of his time. He made painstaking observations and carried out research in fields ranging from architecture and civil engineering to astronomy to anatomy and zoology to geography, geology and paleontology.
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04 Sep 11
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02 Sep 11
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13 Jul 11
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17 Mar 11
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The most heavenly gifts seem to be showered on certain human beings. Sometimes supernaturally, marvelously, they all congregate in one individual. . . . This was seen and acknowledged by all men in the case of Leonardo da Vinci
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Leonardo knew well the rocks and fossils (mostly Cenozoic mollusks) found in his native north Italy
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24 Feb 11
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17 Feb 11
Kathryn SInfo on Leonardo da Vinci. Leonardo da Vinci was a painter and an engineer and an artist.
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10 Jan 11
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08 Dec 10
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07 Oct 10
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Leonardo da Vinci (1452-1519)
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09 Apr 10
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the creator of such masterpieces as the Mona Lisa, Madonna of the Rocks, and The Last Supper.
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biologists
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scientific
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civil engineering to astronomy to anatomy and zoology to geography, geology and paleontology. In the words of his biographer Giorgio Vasari:
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23 Mar 10
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18 May 09
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30 Apr 09
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Leonardo's scientific and technical observations are found in his handwritten manuscripts, of which over 4000 pages survive, including the one pictured on the right, showing some rock formations (click on it to view an enlargement). It seems that Leonardo planned to publish them as a great encyclopedia of knowledge, but like many of his projects, this one was never finished. The manuscripts are difficult to read: not only did Leonardo write in mirror-image script from right to left, but he used peculiar spellings and abbreviations, and his notes are not arranged in any logical order. After his death his notes were scattered to libraries and collections all over Europe. While portions of Leonardo's technical treatises on painting were published as early as 1651, the scope and caliber of much of his scientific work remained unknown until the 19th century.
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31 May 08
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18 May 08
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11 Jan 08
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hich > he >
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I n the >
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n the words of his biographer Giorgio Vasari:
The most heavenly gifts seem to be showered on certain human beings. Sometimes supernaturally, marvelously, they all congregate in one individual. . . . This was seen and acknowledged by all men in the case of Leonardo da Vinci, who had. . . an indescribable grace in every effortless act and deed. His talent was so rare that he mastered any subject to which he turned his attention. . . . He might have been a scientist if he had not been so versatile.
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The manuscripts are difficult to read: not only did Leonardo write in mirror-image script from right to left, but he used peculiar spellings and abbreviations, and his notes are not arranged in any logical order. After his death his notes were scattered to libraries and collections all over Europe
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eonardo knew well the rocks and fossils (mostly Cenozoic mollusks) found in his native north Italy.
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L eon >
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Vasari wrote that "Leonardo was frequently occupied in the preparation of plans to remove mountains or to pierce them with tunnels from plain to plain."
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eonardo appear to have grasped the law of superposition, which would later be articulated fully by the Danish scientist Nicolaus Steno in 1669: in any sequence of sedimentary rocks, the oldest rocks are those at the base. He also appears to have noticed that distinct layers of rocks and fossils could be traced over long distances, and that these layers were formed at different times: "
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Nearly three hundred years later, the rediscovery and elaboration of these principles would make possible modern stratigraphy and geological mapping.
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Concerning the second hypothesis, he wrote that "such an opinion cannot exist in a brain of much reason; because here are the years of their growth, numbered on their shells, and there are large and small ones to be seen which could not have grown without food, and could not have fed without motion -- and here they could not move." There was every sign that these shells had once been living organisms.
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How did those shells come to lie at the tops of mountains? Leonardo's answer was remarkably close to the modern one: fossils were once-living organisms that had been buried at a time before the mountains were raised: "it must be presumed that in those places there were sea coasts, where all the shells were thrown up, broken, and divided. . ." Where there is now land, there was once ocean. It was possible, Leonardo thought, that some fossils were buried by floods
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