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by Brian A. Curran, Anthony Grafton, Pamela O. Long, Benjamin Weiss

The many meanings of obelisks across nearly forty centuries, from Ancient Egypt (which invented them) to twentieth-century America (which put them in Hollywood epics).Nearly every empire worthy of the nameā€•from ...

by Ladislao Reti, Bern Dibner

Includes the two unpublished manuscripts of Leonardo Da Vinci in Madrid, his theory on automation, and how he was a technologist. Presentation from Dibner on front free endpaper. 196, 1 ...

by Jeremy J. Gray

An account of the major work of Janos Bolyai, a nineteenth-century mathematician who set the stage for the field of non-Euclidean geometry.Janos Bolyai (1802-1860) was a mathematician who changed our ...

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