Titelseite der Beschreibung und Verwendung des Sektors von Edmund Gunter, 1636. Artist: Unbekannt

• Bildanbieter: The Print Collector / Alamy Stock Foto
• Bild-ID: AJA5PE
• Dateigröße: 49,9 MB (1,9 MB Komprimierter Download)
• Freigaben (Releases): Model - nein | Eigentum - nein
• Format: 3688 x 4733 px | 31,2 x 40,1 cm | 12,3 x 15,8 inches | 300dpi
• Aufnahmedatum: 1636
• Fotograf: Oxford Science Archive/Heritage Images

Weitere Informationen

Title page of The Description and Use of the Sector by Edmund Gunter, 1636. It shows mariners holding various navigational instruments, including a sector and a cross-staff at the top, and a horary quadrant at bottom right. Gunter (1581-1626) was an English mathematician and astronomer who invented many measuring instruments which bear his name; Gunter's Chain, the 22-yard-long, 100-link chain used by surveyors; Gunter's Line, the forerunner of the modern slide-rule; Gunter's Scale, a navigational tool; and the portable Gunter's Quadrant. He also introduced the words cosine and cotangent into the language of trigonometry. (London, 1636)

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