Theodor W. Engelmann discovered through a now classic experiment that the wavelengths of light have an affect on photosynthesis, more specifically that violet-blue and red portions of the visible spectrum are most effective in driving photosynthesis.
He discovered this by illuminating a filamentous alga with light shone through a prism. This exposed segments of the alga to different wavelengths. Engelmann then used aerobic bacteria to determine which segments of the alga produced the most oxygen and thus photosynthesized the most as the bacteria would concentrate around that area. He noticed that they concentrated mostly around the violet-blue portions and towards the red portions and was thus able to conclude that these sections were most effective in photosynthesis. Not bad for an experiment done in 1883!
Theodor Adorno died on August 6, 1969 at the age of 65.
Godefroy Engelmann died on 1839-04-25.
Thorsten Engelmann was born on July 20, 1981.
Vojtěch Engelmann was born on 1989-07-04.
George Julius Engelmann died in 1903.
Theodor Wilhelm Engelmann was born in 1843.
Theodor Wilhelm Engelmann died in 1909.
Theodor Wilhelm Engelmann was a German botanist and microbiologist. He proved that the light reactions of photosynthesis occur within the chloroplasts.
Theodor W. Hänsch was born on October 30, 1941.
Theodor W. Hänsch was born on October 30, 1941.
Theodor W. Adorno was born on 1903-09-11.
Theodor W. Hänsch is 69 years old (birthdate: October 30, 1941).
Theodor W. Hansch won The Nobel Prize in Physics in 2006.
Theodor W Galdi has written: 'The European defense industry' -- subject(s): Defense industries, Defenses
Theodor Adorno died on August 6, 1969 at the age of 65.
Theodor W Adorno has written: 'Impromptus' -- subject(s): Music 'Prismen' 'Dialectic of enlightenment' -- subject(s): Modern Civilization
Heinz Engelmann's birth name is Engelmann, Heinrich Georg Ludwig.