Physicist and physiologist whose 1847 synthesis connected mechanical and other natural processes through a conservation principle.
Portrait of Hermann von Helmholtz
. Portrait by Franz von Lenbach; reproduced in Leo Königsberger, Hermann von Helmholtz (1906). Public domain (artist died 1904; reproduction published 1906); Commons PD-old/PDM. Source and usage information on the linked Wikimedia file page. Source. Articles by others on the same topic
Hermann von Helmholtz (1821–1894) was a German physician, physicist, and philosopher known for his significant contributions to several fields, including physiology, thermodynamics, optics, and the theory of energy conservation. He is particularly renowned for his work in understanding the principles of energy conservation, encapsulated in the formulation of the law of conservation of energy, which states that energy cannot be created or destroyed, only transformed from one form to another.