Ján Andrej Segner
Encyclopedia
Johann Segner was a Hungarian born (original name: Segner János András) German scientist. He was born in the Kingdom of Hungary, in the former Hungarian capital city of Pressburg
(today Bratislava
, Slovakia
).
Johann Segner's ancestors came from Styria to Pressburg in the Kingdom of Hungary; by the 18th century. He studied at Pressburg, Győr
and Debrecen
. In 1725 Segner began studying at the University of Jena. In 1729 he received a medical certificate and returned to Pressburg, where he started to work as a physician
, as well as in Debrecen. In 1732 he returned to Jena for his master's degree. In 1735 Segner became the first professor of mathematics, a position created for him, at the University of Göttingen. In 1755 he became a professor at Halle, where he established an observatory.
One of the best-known scientists of his age, Segner was a member of the academies of Berlin
, London
, and Saint Petersburg
.
He was the first scientist to use the reactive force of water and constructed the first water-jet, the Segner wheel. When we turn on our sprinklers in the garden, we should remember Segner, who also produced, among other things, the first proof of Descartes' theory of signs. Historians of science remember him as the father of the water turbine.
Segner was the first mathematician to demonstrate the sign convention of Descartes. The lunar crater Segner
is named after him, as is asteroid 28878 Segner
.
Bratislava
Bratislava is the capital of Slovakia and, with a population of about 431,000, also the country's largest city. Bratislava is in southwestern Slovakia on both banks of the Danube River. Bordering Austria and Hungary, it is the only national capital that borders two independent countries.Bratislava...
(today Bratislava
Bratislava
Bratislava is the capital of Slovakia and, with a population of about 431,000, also the country's largest city. Bratislava is in southwestern Slovakia on both banks of the Danube River. Bordering Austria and Hungary, it is the only national capital that borders two independent countries.Bratislava...
, Slovakia
Slovakia
The Slovak Republic is a landlocked state in Central Europe. It has a population of over five million and an area of about . Slovakia is bordered by the Czech Republic and Austria to the west, Poland to the north, Ukraine to the east and Hungary to the south...
).
Johann Segner's ancestors came from Styria to Pressburg in the Kingdom of Hungary; by the 18th century. He studied at Pressburg, Győr
Gyor
-Climate:-Main sights:The ancient core of the city is Káptalan Hill at the confluence of three rivers: the Danube, Rába and Rábca. Püspökvár, the residence of Győr’s bishops can be easily recognised by its incomplete tower. Győr’s oldest buildings are the 13th-century dwelling tower and the...
and Debrecen
Debrecen
Debrecen , is the second largest city in Hungary after Budapest. Debrecen is the regional centre of the Northern Great Plain region and the seat of Hajdú-Bihar county.- Name :...
. In 1725 Segner began studying at the University of Jena. In 1729 he received a medical certificate and returned to Pressburg, where he started to work as a physician
Physician
A physician is a health care provider who practices the profession of medicine, which is concerned with promoting, maintaining or restoring human health through the study, diagnosis, and treatment of disease, injury and other physical and mental impairments...
, as well as in Debrecen. In 1732 he returned to Jena for his master's degree. In 1735 Segner became the first professor of mathematics, a position created for him, at the University of Göttingen. In 1755 he became a professor at Halle, where he established an observatory.
One of the best-known scientists of his age, Segner was a member of the academies of Berlin
Prussian Academy of Sciences
The Prussian Academy of Sciences was an academy established in Berlin on 11 July 1700, four years after the Akademie der Künste or "Arts Academy", to which "Berlin Academy" may also refer.-Origins:...
, London
Royal Society
The Royal Society of London for Improving Natural Knowledge, known simply as the Royal Society, is a learned society for science, and is possibly the oldest such society in existence. Founded in November 1660, it was granted a Royal Charter by King Charles II as the "Royal Society of London"...
, and Saint Petersburg
Russian Academy of Sciences
The Russian Academy of Sciences consists of the national academy of Russia and a network of scientific research institutes from across the Russian Federation as well as auxiliary scientific and social units like libraries, publishers and hospitals....
.
He was the first scientist to use the reactive force of water and constructed the first water-jet, the Segner wheel. When we turn on our sprinklers in the garden, we should remember Segner, who also produced, among other things, the first proof of Descartes' theory of signs. Historians of science remember him as the father of the water turbine.
Segner was the first mathematician to demonstrate the sign convention of Descartes. The lunar crater Segner
Segner (crater)
Segner is a lunar crater located near the southwestern limb of the Moon, to the northeast of the giant walled plain Bailly. The crater Zucchius is a few kilometers to the south-southwest of the rim, and to the north east lies the unusual formation Schiller...
is named after him, as is asteroid 28878 Segner
28878 Segner
28878 Segner is a main-belt asteroid discovered on May 26, 2000 by P. Kusnirák at Ondrejov.- External links :*...
.