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Scientific Instruments
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Items 6 - 7 of 7 Prev 5 Items | Table of Contents
Improving on Napier
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MORLAND, [Sir Samuel]. The Description and Use of Two Arithmetick Instruments. London, Moses Pitt, 1673.
First edition of the first book on a calculator written in English, and the first separate work on the subject after Napier's Rabdologiae.
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An Astronomical Perpetual Calendar
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SCANAVACCA, Bartolomeo. Novissima Inventione per dissegnare con grandissima facilite prestezza Horologi Solari, Italiani, Babilonici, e Francesi. Padova, Stamperia del Seminario per Bernardo Luciani, 1688.
Rare first and sole edition of this description of a sundial of the author's invention, which functioned as an astronomical perpetual calendar: determining for any day of the year the sun's rising, noon, setting, and mid-night, place of the sun in the Zodiac, etc. The work explains how to take basic measurements and co-ordinate them with the known physical points of Northern Italian cities through the calendar.
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