Sterling D. Allan writes: "The Searl International Space Research Consortium has published two videos at YouTube demonstrating a key proof of concept of a technology John Searl produced in the 1960's, but for which he was jailed, and his devices and papers pilfered by the government. The completion of this mock-up marks the first time since 1968 that a roller has rotated about a ring continuously. According to Searl, the purpose of the mock-up was to find out why the rollers spin, why they stay on the plate, and to see what input power is necessary for operation — to see what kind of rare earth material will be able to provide the input power in the place of the small electrical excitation. The next task will be to build a full Searl Effect Generator (SEG) capable of cheaply and safely producing electricity (15 kW) without fuel, pollution, friction, or noise. Anti-gravity applications will be pursued after that."