In nuclear science, what word used to follow ‘half-life’, before the term was shortened in the early 1950s?
Half-life Half-life Half-life (symbol "t") is the time required for a quantity to reduce to half its initial value. The term is commonly used in nuclear physics to describe how quickly unstable atoms undergo, or how long stable atoms survive, radioactive decay. The term is also used more generally to characterize any type of exponential or non-exponential decay. For example, the medical sciences refer to the biological half-life of drugs and other chemicals in the human body. The converse of half-life is doubling time. The original term, "half-life period", dating to Ernest Rutherford's discovery of the principle in 1907, was shortened
Half Life: A Parable for the Nuclear Age Half Life: A Parable for the Nuclear Age Half Life: A Parable for the Nuclear Age is a 1985 Australian documentary film directed by Dennis O'Rourke, concerning the American Castle Bravo nuclear testing at the Marshall Islands in 1954. The film features interviews with residents of the nearby Rongelap and Utirik Atolls who were affected by nuclear fallout from the tests. Unlike in previous nuclear tests and despite the considerably more powerful nuclear explosion involved, these residents were not relocated to a safer location. Declassified American military footage is included in the production. In 1986 the film won the Peace