Marie Curie doubt, the Curies sought to isolate polonium and radium in pure form. Pitchblende is a complex mineral; the chemical separation of its constituents was an arduous task. The discovery of polonium had been relatively easy; chemically it resembles the element bismuth, and polonium was the only bismuth-like substance in the ore. Radium, however, was more elusive; it is closely related chemically to barium, and pitchblende contains both elements. By 1898 the Curies had obtained traces of radium, but appreciable quantities, uncontaminated with barium, were still beyond reach. The Curies undertook the arduous task of separating out radium salt by differential
DISCover Gaming System, or HAWGS, technology would be used for FiringSquad's Ammo digital distribution service. The following month, on September 2007, the company disclosed the InstaPlay desktop client, which improves the ease of use for accessing games. DISCover chief executive officer David Ferrigno addressed Instaplay concerns and comparisons with other digital distribution services such as Direct2Drive and Steam. DISCover Digital Interactive Systems Corporation (or DISCover) is a company specializing in gaming technology for PCs. They are the creators of the DISCover technology which allow PC games to be played like a video game console. The technology, which features the "Drop and