Theodor Wilhelm Engelmann was a German botanist, physiologist, microbiologist, university professor, and musician whose 1882 experiment measured the effects of different colors of light on photosynthetic activity and showed that the conversion of... Wikipedia
Born: November 14, 1843, Leipzig, Germany
Died: May 20, 1909 (age 65 years), Berlin, Germany
Partner: Emma Engelmann
Children: Wilhelm Engelmann
Parents: Wilhelm Engelmann