Nuclear meltdown of fission product radioactivity, by simple convection. The second test, deliberate shut-off of the secondary coolant loop that supplies the generators, caused the primary circuit to undergo the same safe shutdown. This test simulated the case of a water-cooled reactor losing its steam turbine circuit, perhaps by a leak. This is a list of the major reactor failures in which meltdown played a role: The China syndrome (loss-of-coolant accident) is a hypothetical nuclear reactor operations accident characterized by the severe meltdown of the core components of the reactor, which then burn through the containment vessel and the housing building, then
The World About Us an episode in 1977 An episode narrated by Wilfred Thesiger about his journey through, and his love for, the "Empty Quarter" desert won several awards in 1968 (Trento International Film Festival 1967, Melbourne Film Festival 1968, International Addis Ababa Film Festival 1968). The 400th edition was broadcast on 29th August 1976 and the series continued into the late 1980's. The series marked the evolution of natural-history broadcasting "to the point at which constantly improving photographic techniques, allied to a seemingly inexhaustible supply of subject matter," make recurring series possible. The series is considered a precursor to "Life on Earth" (1979),