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Ivory Diptych Sundials, 1570-1750 (Hardcover, New)
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Ivory Diptych Sundials, 1570-1750 (Hardcover, New)
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During the sixteenth and seventeenth centuries, ivory diptych dials
became popular devices for determining the time by the sun during
the day or by the moon at night. These elaborate portable sundials,
which could be adjusted for use in different latitudes,
incorporated various devices useful for merchants and others who
traveled extensively in Europe. This catalogue illustrates in
detail Harvard's collection of 82 ivory diptych sundials, one of
the largest holdings of these instruments in the world. The
collection encompasses a comprehensive array of styles and designs
from Nuremberg, Paris, and Dieppe, the major centers of their
production, as well as from other parts of Europe. Harvard
University has been purchasing scientific instruments on a
continuous basis for teaching and research since 1765. The
Collection of Historical Scientific Instruments, which was
established in 1949 to preserve this apparatus as a resource for
teaching and research in the history of science and technology, has
become one of the three largest university collections of its kind
in the world. It comprises about 15,000 instruments from 1500 to
the present and covers a broad range of scientific disciplines,
including astronomy, navigation, horology, surveying, geology,
calculating, physics, biology, medicine, psychology, electricity,
and communication. Illustrated catalogues of other parts of the
collection are anticipated in the near future.
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