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Jan Ingenhousz
Born
8 December 1730
Breda, Staats-Brabant, Dutch Republic
Died
7 September 1799 (aged 68)
Calne, Wiltshire, Great Britain
Nationality
Dutch
Alma mater
Catholic University of Leuven
Known for
Photosynthesis
Scientific career
Fields
Physiology
Jan Ingenhousz FRS (8 December 1730 – 7 September 1799) was a Dutch-British[1] physiologist, biologist and chemist.
He is best known for discovering photosynthesis by showing that light is essential to the process by which green plants absorb carbon dioxide and release oxygen.[2][3][4] He also discovered that plants, like animals, have cellular respiration.[5] In his lifetime he was known for successfully inoculating the members of the Habsburg family in Vienna against smallpox in 1768 and subsequently being the private counsellor and personal physician to the Austrian Empress Maria Theresa.[6]
^Beale and Beale, Echoes of Ingen Housz, 2011 (full biography)
^Gest, Howard (2000). "Bicentenary homage to Dr Jan Ingen-Housz, MD (1730–1799), pioneer of photosynthesis research". Photosynthesis Research. 63 (2): 183–90. doi:10.1023/A:1006460024843. PMID 16228428. S2CID 22970505.
^Geerd Magiels, Dr. Jan Ingenhousz, or why don't we know who discovered photosynthesis, 1st Conference of the European Philosophy of Science Association 2007
^Howard Gest (1997). "A 'misplaced chapter' in the history of photosynthesis research; the second publication (1796) on plant processes by Dr Jan Ingen-Housz, MD, discoverer of photosynthesis. A bicentenniel 'resurrection'" (PDF). Photosynthesis Research. 53: 65–72. doi:10.1023/A:1005827711469. S2CID 24276112.
^Ingen Housz JM, Beale N, Beale E (2005). "The life of Dr Jan Ingen Housz (1730–99), private counsellor and personal physician to Emperor Joseph II of Austria". J Med Biogr. 13 (1): 15–21. doi:10.1177/096777200501300106. PMID 15682228. S2CID 26903822.
JanIngenhousz FRS (8 December 1730 – 7 September 1799) was a Dutch-British physiologist, biologist and chemist. He is best known for discovering photosynthesis...
6324. ISSN 2575-6524. S2CID 104357320. Ingenhousz, Jan (1998) [1780]. "To Benjamin Franklin from JanIngenhousz, 5 December 1780". In Oberg, Barbara B...
commercial product. In a description of the use of the eudiometer by JanIngenhousz to show photosynthesis, a biographer observed, "The history of the use...
into biomass per year. Photosyntesis was first discovered in 1779 by JanIngenhousz; he showed that plants need light, not just air, soil, and water. Photosynthesis...
ultraviolet light. The process of photosynthesis was discovered by JanIngenhousz, a Dutch-born British physician and scientist, first publishing about...
salubrity of the air. The eudiometer with the nitrous air test was the way JanIngenhousz verified that the bubbles given off under water by plant leaves exposed...
824–829. 1701. doi:10.1098/rstl.1700.0082. Ingenhousz, Jan (1998) [1780]. "To Benjamin Franklin from JanIngenhousz, 5 December 1780". In Oberg, Barbara B...
our atmosphere." Priestley's experiments were further evaluated by JanIngenhousz, a Dutch physician, who then showed that the "restoration" of air only...
driving consideration. In a 1774 letter to Dutch-born British scientist JanIngenhousz, Benjamin Franklin relates an experiment by another British scientist...
Doodle. On December 8, 2017, Google celebrated the 287th birthday of JanIngenhousz with a Doodle. On January 29, 2018, Google celebrated Taiwanese singer...
where he reports that JanIngenhousz saw ethylene synthesized in the same way by a Mr. Enée in Amsterdam in 1777 and that Ingenhousz subsequently produced...
describes and explains the Brownian movement by a wrong example". While JanIngenhousz described the irregular motion of coal dust particles on the surface...
at Leipzig, substituted a leather cushion for the hand. During 1746, JanIngenhousz invented electric machines made of plate glass. Experiments with the...
he welcomed visitors including Benjamin Franklin, Joseph Priestley, JanIngenhousz, and Henry Cavendish (the discoverer of hydrogen). Michell wrote to...
discovery of oxygen (as now called) and its production by plants. Later, JanIngenhousz (1730–1799) observed that only in sunlight do the green parts of plants...
researcher JanIngenhousz demonstrated that the bubbles of gas observed by Bonnet on submerged leaves consisted of this same gas. Ingenhousz also published...
1724 – Claude Balbastre, French organist and composer (d. 1799) 1730 – JanIngenhousz, Dutch physician, physiologist, and botanist (d. 1799) 1731 – František...
oxygen in 1774; there is a plaque in the town centre commemorating this. JanIngenhousz repeated Joseph Priestley's experiments and found it was sunlight which...
December 8 Johann Hedwig, Transylvanian-born German botanist (died 1799) JanIngenhousz, Dutch physiologist (died 1799) Maria Angela Ardinghelli, Italian scientific...
invented by Samuel Miller 1779: Photosynthesis was first discovered by JanIngenhousz 1781: William Herschel announces discovery of Uranus 1784: Bifocals...
astronomer from Gloucestershire, who discovered the aberration of light. JanIngenhousz, the Dutch biologist, discovered photosynthesis in 1779 at Bowood House...
deprecates the phlogiston theory and proposes a caloric theory 1784 – JanIngenhousz describes Brownian motion of charcoal particles on water 1791 – Pierre...
German zoologist and entomologist who overhauled the Linnaean system. JanIngenhousz (1730–1799), Dutch physiologist, biologist and chemist known for discovering...
discovery that would eventually lead to the discovery of photosynthesis by JanIngenhousz. Priestley also developed a "nitrous air test" to determine the "goodness...
restore oxygen to a vessel depleted of this element by a burning candle. JanIngenhousz noted the factors of sunlight and green leaves, Jean Senebier noted...
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