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American Philosophical Society
Long Route to the Invention of the Telescope: (Transactions 98-5)
After the telescope became known in 1608-1609, a number of people in widely separate locations claimed that they had such a device long before the announcement came from The Hague; in the summer of 1608, no one had a telescope, in the summer of 1609, everyone had one. For a number of years author Rolf Willach has quietly tested early spectacle lenses in museums and private collections, and now he reports on this study, which gives an entirely new explanation of the invention of the telescope and solves the conundrum mentioned above. Willach is an optical engineer and independent scholar who worked for several years in the Department of Physics at the Institute of Astronomy in Bern. He has written extensively on the history of the development of optics and the telescope. Illus.
William Croone, on The Reason of the Movement
Fighting for the Good Cause: Reflections on Francis Galton's Legacy to American Hereditarian Psychology
John Haygarth, FRS
Paleobiology of the Williamsburg Formation
My Life in Germany Before and after January 30, 1933: A Guide to a Manuscript Collection at Houghton Library
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