On the Origin of Clockwork, Perpetual Motion Devices, And the Compass
On the Origin of Clockwork, Perpetual Motion Devices, And the Compass
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--ANTIKYTHERA MACHINE, TWO SMALLER FRAGMENTS. (_Photo courtesy of National Museum, Athens. _)] Unfortunately, the very difficult task of cleaning the fragments isslow, and no publication has yet given sufficient detail for an adequateexplanation of this object. One can only say that although the problemsof restoration and mechanical analysis are peculiarly great, this muststand as the most important scientific artifact preserved fromantiquity.
Some technical details can be gleaned however. The ...shape of the gearteeth appears to be almost exactly equilateral triangles in all cases(fig. 8), and square shanks may be seen at the centers of some of thewheels. No wheel is quite complete enough for a count of gear teeth, buta provisional reconstruction by Theophanidis (fig. 9) has shown that theappearances are consistent with the theory that the purpose of thegears was to provide the correct angular ratios to move the sun andplanets at their appropriate relative speeds.
[Illustration: Figure 8.
What to read after On the Origin of Clockwork, Perpetual Motion Devices, And the Compass?
You can find similar books in the "Read Also" column, or choose other free books by Price Derek John De Solla to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
--ANTIKYTHERA MACHINE, TWO SMALLER FRAGMENTS. (_Photo courtesy of National Museum, Athens. _)] Unfortunately, the very difficult task of cleaning the fragments isslow, and no publication has yet given sufficient detail for an adequateexplanation of this object. One can only say that although the problemsof restoration and mechanical analysis are peculiarly great, this muststand as the most important scientific artifact preserved fromantiquity.
Some technical details can be gleaned however. The ...shape of the gearteeth appears to be almost exactly equilateral triangles in all cases(fig. 8), and square shanks may be seen at the centers of some of thewheels. No wheel is quite complete enough for a count of gear teeth, buta provisional reconstruction by Theophanidis (fig. 9) has shown that theappearances are consistent with the theory that the purpose of thegears was to provide the correct angular ratios to move the sun andplanets at their appropriate relative speeds.
[Illustration: Figure 8.
What to read after On the Origin of Clockwork, Perpetual Motion Devices, And the Compass?
You can find similar books in the "Read Also" column, or choose other free books by Price Derek John De Solla to read onlineMoreLess
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