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Friedrich Tiedemann
(23 Aug 1781 - 22 Jan 1861)
German anatomist and physiologist who prepared hundreds of anatomical specimens, including zoological subjects for comparison to human structures. He was concerned about human rights, and in his research he showed the Negro brain was comparable to the Caucasian brain. With chemist Leopold Gmelin, he characterised the physiological effects of taurine from the gall bladder of an ox.
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Science Quotes by Friedrich Tiedemann (1 quote)
Considered from the standpoint of chemistry, living bodies appear to us as laboratories of chemical processes, for they undergo perpetual changes in their material substrate. They draw materials from the outside world and combine them with the mass of their liquid and solid parts.
— Friedrich Tiedemann
In 'Allgemeine Betrachtungen der orgauischen Korper', Physiologie des Menschen (1830), Vol. 1, 34. Trans. in Kenneth L. Caneva, Robert Mayer and the Conservation of Energy (1993), 7I.
See also:
- 23 Aug - short biography, births, deaths and events on date of Tiedemann's birth.
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.
(1987) -- 
