Richard Rennison led to the Marriage (Scotland) Act 1939, which outlawed the process of "irregular marriages". When the new law came into force in 1940, Rennison had performed 5,147 marriages. His role then changed to a symbolic one, "blessing" marriages and acting as caretaker of the forge. He also regularly appeared at court to ensure the marriages he performed were judicially recognised. Richard Rennison Richard Rennison (29 October 1889 – 5 August 1969) was the last "anvil priest" at Gretna Green, Scotland. Between 1926 and 1940, he performed "irregular marriages" of couples over the anvil at the Old Blacksmith Shop, where the
Thermal runaway have led to catastrophic explosions when reaction control failed. Thermal runaway may result from unwanted exothermic side reaction(s) that begin at higher temperatures, following an initial accidental overheating of the reaction mixture. This scenario was behind the Seveso disaster, where thermal runaway heated a reaction to temperatures such that in addition to the intended 2,4,5-trichlorophenol, poisonous 2,3,7,8-tetrachlorodibenzo-p-dioxin was also produced, and was vented into the environment after the reactor's rupture disk burst. Thermal runaway is most often caused by failure of the reactor vessel's cooling system. Failure of the mixer can result in localized heating, which initiates thermal runaway. Similarly,