April 12, 2024
2004,SLOVAKIA,Silver 200 Korun,JAN ANDREJ SEGNER,UNC,Ag 900/1000,UNC
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Value : 200 Year : 2004 Currency : Slovak crown Coin's data Designer: Maria PoldaufovaMaterial: Ag 900, Cu 100Weight: 18 gDiameter: 34 mmEdge: inscription: "VYNALEZCA - FYZIK - MATEMATIK - PEDAGOG"(Inventor - Physicist - Mathematician - Pedagogue)Producer: The Polish State Mint (Mennica Panstwowa)Engraver: Dariusz Wasilewski, Stanislaw GolebiowskiNumber ofpieces minted: brilliant uncirculated quality: 8,000, the limited mintage is 10,000proof quality: 3,300, the limited mintage is 5,000 200 Sk Commemorative Silver Coin Commemorating the 300th anniversary of the birth of Jan Andrej SegnerJan 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
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