The town is known for many great ski jumpers. Birger Ruud and his two brothers, as well as many other townsmen, such as Petter Hugsted, won numerous medals in Winter Olympics and other international championships in the 1930s and 1940s. The first ski jumping technique, the Konsberger was developed by Jacob Tullin Thams and Sigmund Ruud in Kongsberg, and was the most popular ski jumping technique from the late 1920s to the late 1950s. Their medals and equipment can be seen at the Kongsberg Skiing Museum ("Kongsberg Skimuseum") which is co-located with the Norwegian Mining Museum ("Norsk Bergverksmuseum") in central Kongsberg. Inventor of the modern ski binding, Norwegian-American skier and Olympic skiing coach Hjalmar Hvam, was born in Kongsberg in 1902.