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  1. A doomsday device is a hypothetical constructionusually a weapon or weapons system — which could destroy all life on a planet, particularly Earth, or destroy the planet itself, bringing "doomsday", a term used for the end of planet Earth.

  2. Doomsday machine, hypothetical device that would automatically trigger the nuclear destruction of an aggressor country or the extinction of all life on Earth in the event of a nuclear attack on the country maintaining the device. The former type of device might automatically launch a large number.

    • The Editors of Encyclopaedia Britannica
  3. Sep 26, 2009 · What is that? RAZ: It was a system designed to unleash global nuclear Armageddon if Russia were attacked. Now, in 1964, that concept was a movie fantasy. What few knew until recently is that in...

  4. Jan 19, 2022 · The Doomsday Clock’s experts have the unenviable job of identifying and weighing potential apocalypses, as well as our progress as a society—or lack of it—in avoiding them.

  5. Nov 30, 2020 · In fact, we argue that even though doomsday scenarios are high probability, for a variety of reasons—including cognitive myopia, political exigency, and emotional insensitivity—decision makers are often underprepared or unprepared to respond.

    • Phillip H. Phan, Geoffrey Wood
    • 2020
  6. Nov 15, 2023 · The Doomsday Clock, with its hands hovering close to midnight (“doomsday”), is a symbolic device that is designed to warn the world how close it is to catastrophe. Midnight is said to ...

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  8. Jan 21, 2022 · New technologies like artificial intelligence, autonomous weapons, even advanced cyberhacking present harder-to-gauge but still very real dangers.

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