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Lot Essay
Cette rare image de Marey le représente utilisant le premier instrument qu’il construisit : le sphymographe en 1860. Cet appareil permettait de transcrire le signe de la circulation sanguine, le pouls. Le levier et le stylet pouvaient convertir le battement du cœur en une inscription sur une feuille de papier noirci à la fumée.
This rare photograph of Marey shows him using the first instrument he devised, the sphygmograph, in 1860. The device was designed to record the pulse, translating the signs of blood circulation into graphic form. Through a system of levers and a stylus, the instrument converted the heartbeat into a trace inscribed on a sheet of smoke-blackened paper.
This rare photograph of Marey shows him using the first instrument he devised, the sphygmograph, in 1860. The device was designed to record the pulse, translating the signs of blood circulation into graphic form. Through a system of levers and a stylus, the instrument converted the heartbeat into a trace inscribed on a sheet of smoke-blackened paper.