Slovak Republic after 1993
200 Sk 2004 - Ján Andrej Segner -> Proof
In warehouse: Bratislava,
35,00
Nominal
Gedenkmünze
Year
2004
Mint
Mint of Poland
Weight
18 g
Category
Coins and medals
Subcategory
Period after 1918
Product code
SRPS-044
Variant code
SRPS-044P
Metal
Ag
Diameter
34 mm
Author
M. Poldaufová
Product description
Jan Andrej Segner (4. 10. 1704 - 5. 10. 1777), a physician, physicist, teacher and inventor, and a native of Bratislava, was one of the most important scientists and engineers of the 18th century. He became known as the inventor of the co-called Segner Wheel, which was set into rotation by the reactive force of a stream of water flowing from bent pipes. The wheel was perfected by his contemporary, Leonard Euler. This invention led to the construction of water turbines, and, later on, rockets. Also remarkable are Segner's works dealing with the shapes of drops of water under the influence of forces in the air, a treatise on the convex and concave surfaces of liquids and forces coming into effect therein, as well as his discoveries in optics and astronomy. He was a successful teacher at the universities of Jena, Göttingen and Halle. His textbooks on mathematics and physics were among the most sought after and several editions were published.