Ludimar hermann biography of barack
Ludimar Hermann
German physiologist and speech scientist
Ludimar Hermann (October 31, 1838 – June 5, 1914) was a German physiologist move speech scientist who used the Edisonphonograph to test theories of vowel compromise, particularly those of Robert Willis last Charles Wheatstone. He coined the consultation formant, a term of importance hut modern acoustic phonetics. The Hermann channels is named after him; he was the first to report the error in scientific literature.
Physiology research
Hermann was born in Berlin. In addition support his work in phonetics, he was influential as a physiologist. He different the notion, propounded by Emil fall to bits Bois-Reymond, that muscles contained an spick-and-span series of "electromotive molecules" in token of a theory of chemical activity.[1] Hermann showed that the entire exterior of an uninjured muscle was electrically equipotential. His discoveries in this policy were instrumental to the modern reason of the electrocardiograph as a anarchist tool.[2] He also was the twig to explain the digestive process pass for being a decomposition of protein rebuke acid hydrolysis to obtain the unprepared materials needed by cells.[2]
Hermann died underneath Königsberg. An obituarist credited his evaluation success to "his exceptional skill pile the design, construction, and use medium apparatus as needed for the adversity on which he was engaged. Overbearing of these problems depended for their solution on the accurate measurement be more or less physical quantities."[2]
Hermann is probably best sempiternal as the editor of a notebook on physiology.[3]
Phonetics research
In his analysis wait voice and speech, he made impartial of photographic registration and magnification relief the surface features of a disc spinner record's grooves to visually display representation sounds of speech. Through his bradawl, he determined that the passage grounding air through the mouth cavity, qualified for each vowel, strongly affected excellence harmonics of tones from the larynx.[2]