Theodor Wilhelm Engelmann
T.W. Engelmann | |
---|---|
University of Berlin |
Theodor Wilhelm Engelmann (14 November 1843 – 20 May 1909) was a German
Academic history
Engelmann studied
From 1870 he taught physiology at the
Engelmann became a foreign member of the Royal Netherlands Academy of Arts and Sciences in 1870 and regular member in 1897.[2]
Scientific investigations
Engelmann's major contribution to the field of physiology emerged from a study lasting from 1873 to 1897, in which he observed the contractions of
He also demonstrated, after experiments with dissected frogs in 1875, that contractions of the heart were caused by the heart muscle itself, not an external nerve stimulus, as was previously believed.
Engelmann performed three significant experiments involving photosynthesis:
In 1881, he observed the movement of bacteria towards the chloroplasts in a strand of
Musical significance
Johannes Brahms dedicated his String Quartet No. 3 to Engelmann, an amateur cellist who had hosted him on a visit to Utrecht.
References
- ^ Prof.dr. Th.W. Engelmann (1843 - 1909) at Catalogus Professorum Academiæ Rheno-Traiectæ.
- ^ "Theodoor Wilhelm Engelmann (1843 - 1909)". Royal Netherlands Academy of Arts and Sciences. Archived from the original on 28 April 2019.
- ^ M.V. Ball (1914). Essentials of Bacteriology (7 ed.). p. 147.
- ^ T.W. Engelmann (1882). "Über Sauerstoffausscheidung von Pflanzenzellen im Mikrospectrum". Bot. Zeit. 40: 419–426.
- S2CID 1060996.
- S2CID 239877002.
- ^ Engelmann, T.W. (1883). "Farbe und Assimilation". Botanische Zeitung. 41: 17–29.
External links
- Short biography, bibliography, and links on digitized sources in the Virtual Laboratory of the Max Planck Institute for the History of Science
- Original Source for Action Spectrum Experiment
- Bacterial Method
- Pictorial Demonstrations of Photosynthesis at the Wayback Machine (archived April 16, 2007)
- Timeline of Photosynthesis
- Contributions of Theodor Wilhelm Engelmann on phototaxis, chemotaxis and photosynthesis
- B. termo Information