A power window apparatus includes an operation switch for causing a window glass to move when operated. To provide a turn portion in the heat exchanger for changing flow direction of a fluid flowing zigzag through a fluid circuit, a metal plate is provided at the upper or lower ends of a partition ridge with a fluid flow direction changing passage forming caved portion having a bottom wall of circular-arc cross section. The method further includes writing information relating to sensor, GPS, and alarm functions from the cloud based server into the bike mounted activity tracker via a wireless link. The uniform light sources per reel work with the image polarizer associated per reel, with polarizer location between preferably the reel and the game patron or the light sources and the reel. The Snap mode of operation simultaneously transfers accumulated charge for a set of the imager cells to their sense nodes.