A cameraman shoots an exhibition on digital Olympic Games at the China Beijing International High-technology Expo in Beijing Sept. 12. The ongoing expo hosts a series of activities concerning the 2008 Olympic Games for enterprises both at home and abroad. (Xinhua Photo)

A visitor strolls around an exhibition area featuring the sport technology for Olympic Games at the China Beijing International High-technology Expo. (Xinhua Photo)

Researchers from Beijing University of Aeronautics and Astronautics shows visitors the technology in simulated exhibition, developed for the Olympic Museum. (Xinhua Photo)

A visitor tries a machine for testing physical quality. (Xinhua Photo)