Many universities in the Nordic countries (or Scandinavia) have student computer clubs, which are similar to amateur radio clubs in that they often have a club house or club room filled with equipment that belongs to the club. Starting in 1987, members of these clubs meet at an annual
Nordic University Computer Clubs Conference (NUCCC[?]).
... when the axis starts "rolling" inside the groove. (Compare with graphic below.) Since this friction force is essential for the device's operation, the groove must not be ...