Georg Forchhammer
Danish physicist · Denmark · On the map · Scientists · Lived 1861 to 1938 · aged 77
Johannes Georg Forchhammer was a Danish educator of the deaf, who was director of several deaf schools in Nyborg and Fredericia from 1891 to 1926. Born to a family of academics, in Aalborg, first training as a chemist, he taught physics for several years before starting work as a deaf educator.
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Forchhammer developed one of the first mouth-hand systems, an approach to manually coded languages, which he used to teach the Danish language to deaf students; his system was used through the twentieth century, and was later adapted to teach German. The system used a series of handshapes under the chin to show the sounds of speech as one spoke, giving the observer extra information about pronunciation.
