RASCHAU - Over 50 Nordic Combination technical delegates visited the workshop of Peter Riedel GmbH on Friday. In addition to a common barbecue, a lecture on the "physics of ice" was also part of the evening program. On the basis of a large, specially crafted ice block, CEO Peter Riedel explained the basic physical properties of ice and the influence on the in-run tracks in ski jumping. The evening was very well received - not only thanks to the generous drink offer of the Weltenburger Kloster Brewery, but because of the possibility of experiencing the demands of the in-run track construction live and in color.