1961

A long documentary-style film on the 1961 SL-1 reactor accident, where a control rod was withdrawn too far and the reactor went prompt-critical. The resulting steam explosion ejected control rods and shield plugs.

A short Reuters news clip showing declassified Russian footage of the 1961 Tsar Bomba, the largest nuclear weapon ever detonated. It shows the blast and the mushroom cloud.

A high-quality recording of President Eisenhower's January 1961 farewell address, including his warning about the unwarranted influence of the military-industrial complex. The uploader marks the key passage at 8:41.

Matt Parker of Stand-up Maths demonstrates MENACE, Donald Michie's 1961 machine made of matchboxes that learns to play noughts and crosses through reinforcement. He builds and trains a physical version.

A three-minute clip of Dwight D. Eisenhower's farewell address of January 17, 1961. In it he warns of the unwarranted influence of the military-industrial complex.