25TB titanium oxide 'super discs' in the works? + South African government may ban online porn

Japanese researchers have discovered a material that could be used to make low-cost discs with a storage capacity that puts existing storage media to shame. Described as a new crystal form of titanium oxide, the material switches from a black-color metal state that conducts electricity to a brown semiconductor when exposed to light, according to Shin-ichi Ohkoshi of the University of Tokyo. That