Lambert, JOHANN

HE IN RICH, 1728-1777. Ed. Pru ian Astronomical Almanac; member Berlin Academy 1764. He introduced hyperbolic trigonometric functions, and expre ed the physical law called "vis viva" in terms of the differential Calculus. Photo me tri a, 1760; Kosmologische Briefe, 1731. Works, 4 vols., 1765-72. IMG:content-1001.jpg:[merged small][ocr errors][ocr errors][ocr errors] IMG:content-1002.jpg:[blocks in formation]