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| Keywords: Huygens first pendulum clock.png The first pendulum clock invented by Dutch physicist Christiaan Huygens in 1657 and built by clockmaker Saloman Coster This drawing is from Huygens' 1658 treatise on the clock Horologium The pendulum was driven by a verge escapement mechanism so it had a very wide angle of swing compared to modern clocks perhaps 80° to 90° The clock was weight-driven using an ingenious arrangement of two weights linked by a loop of cord In order to wind the clock the larger weight was simply lifted to the top Alterations to image removed caption Downloaded 2010-03-07 from http //books google com/books id kr8KAAAAIAAJ pg PA179 Ernst Gerland Friedrich Traumüller 1899 Geschichte der Physikalischen Experimentierkunst Verlag von Wilhelm Engelmann Leipzig Germany p 179 fig 178 on Google Books Source credits it to Christiaan Huygens 1658 Horologium Opera Varia Vol 1 S 1 1658 creator Christiaan Huygens Public domain - Huygens died 1695 PD-old-100 Pendulum clocks Christiaan Huygens 17th-century technical drawings Old horology prints | ||||
