Title: “Richtige Grund Sätze der Friction Berechnung, Zuweit gewißerer Beurtheilung und Einrichtung aller Machinen überhaupt, aus des Monsr. Amontons und Monsr. Belidors Schrifften, dennen Lieb habern mechanischer Wissenschafften zu gefallen in beliebter kürtze zusammen getragen Dritte Tabelle. Sumptibus hæredun Homannianorum Cum Privil. S. C. M.” Description: Extremely rare and decorative copper engraving represents the “Important Principles of Friction” in 16 variations using pulleys and hoists by Homann Erben. The principles being described come from two noted scientists: Guillaume Amontons (1663-1705) and Bernard Forest de Bélidor (1697/98-1761). Amontons “produced the first known study on the question of losses caused by friction in machines, and established the laws of proportionality between the friction and the mutual pressure of the bodies in contact.” Bélidor was professor of mathematics at the artillery school at La Fère, who wrote numerous texts on mechanics, including “La Science des ingénieurs” and “Architecture hydraulique”. The engraving comes from Homann Erben atlas “Atlas Major…”, published in Nuremberg, 1760. Cartographer: Homann Erben (1724-1780) Sheet size: 63,7 x 53,6 cm Year: 1760 Technique: copper engraving Condition: Good condition, original hand coloring, watermarked paper. Four wormholes present. This is an original antique map published in 1760 and NOT a modern copy or reprint On your request I will provide a Certificate of Authenticity
