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Ludimar Hermann
Ludimar Hermann (October 31, 1838, Berlin – June 5, 1914, Königsberg) was a German physiologist and speech scientist who used the Edison phonograph to test theories of vowel production, particularly those of Robert Willis and Charles Wheatstone. He coined the word ''formant'', a term of importance in modern acoustic phonetics. The Hermann Grid is named after him; he was the first to report the (illusion ) in scientific literature.
==Physiology research==
In addition to his work in phonetics, Hermann was influential as a physiologist. He disproved the notion, propounded by Emil du Bois-Reymond, that muscles contained an ordered series of "electromotive molecules". Hermann showed that the entire surface of an uninjured muscle was electrically equipotential. His discoveries in this field were instrumental to the modern use of the electrocardiograph as a diagnostic tool.〔''Proceedings of the Royal Society of London'', Series B. Vol. 91, No. 641 (Nov. 15, 1920), pp. xxxviii-xl.〕 He also was the first to explain the digestive process as being a decomposition of protein through acid hydrolysis to obtain the raw materials needed by cells.〔
An obituarist credited his research success to "his exceptional skill in the design, construction, and use of apparatus as needed for the problems on which he was engaged. Most of these problems depended for their solution on the accurate measurement of physical quantities."〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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