Laser laser devices. The question of just how to assign credit for inventing the laser remains unresolved by historians. On May 16, 1960, Theodore H. Maiman operated the first functioning laser at Hughes Research Laboratories, Malibu, California, ahead of several research teams, including those of Townes, at Columbia University, Arthur Schawlow, at Bell Labs, and Gould, at the TRG (Technical Research Group) company. Maiman's functional laser used a solid-state flashlamp-pumped synthetic ruby crystal to produce red laser light, at 694 nanometers wavelength; however, the device only was capable of pulsed operation, because of its three-level pumping design scheme. Later that year,
Laser tag tag facilities. Competitions and tournaments are staged for local, regional/state, inter-regional, national, bi-lateral international, and international levels. The First Zone Worlds Laser Tag Championships were hosted in the United States. Ultrazone's San Diego site in California hosted Worlds I from 2–7 August 2003. Worlds I featured 12 teams from Sweden, Finland, Canada and the United States. The tournament was played on v5 equipment and took place between 11pm to 6am. Results: The Second Zone World Laser Tag Championships were staged at Megazone in Tampere, Finland during 30 May – 4 June 2009, with teams including Australia, Sweden, U.S., and the