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Detail of map of southern Russia, published by |
A selection of rare maps and related books from the Archives is currently on view for the Caltech community on the second floor of Parsons-Gates Hall of Administration. Beginning with one of the earliest prints of Ptolemy's map of the world, the exhibit covers the themes of mapping the earth, mapping the skies, and the mapping of longitude. Highlights include a beautifully bound edition of the Braun and Hogenberg atlas, Towns of the World, dating from 1572, which contains hand-colored copperplate engravings that will charm today's armchair traveler. Several celestial and star maps are not only works of art but incorporate important observational data. Finally, the quest for accurate measurement of time and its relation to the determination of longitude is portrayed in part by Cassini's famous meridian in Bologna and by Huygens's invention of the pendulum clock. Posted 10-5-2010
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