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  2. Time bomb - Wikipedia

    en.wikipedia.org/wiki/Time_bomb

    A time bomb's timing mechanism may be professionally manufactured either separately or as part of the device, or it may be improvised from an ordinary household timer such as a wind-up alarm clock, wrist watch, digital kitchen timer, or notebook computer. The timer can be programmed to count up or count down (usually the latter; as the bomb ...

  3. Pencil detonator - Wikipedia

    en.wikipedia.org/wiki/Pencil_detonator

    A pencil detonator or time pencil is a time fuze designed to be connected to a detonator or short length of safety fuse. They are about the same size and shape as a pencil , hence the name. They were introduced during World War II and developed at Aston House , Hertfordshire , UK .

  4. Countdown - Wikipedia

    en.wikipedia.org/wiki/Countdown

    In the context of a rocket launch, the "L minus Time" is the physical time before launch, e.g. "L minus 3 minutes and 40 seconds". "T minus Time" is a system to mark points at which actions necessary for the launch are planned - this time stops and starts as various hold points are entered, and so doesn't show the actual time to launch.

  5. Ahmed Mohamed clock incident - Wikipedia

    en.wikipedia.org/wiki/Ahmed_Mohamed_clock_incident

    Bill Maher said on his HBO series Real Time with Bill Maher that Mohamed deserves an apology but that his clock "looks exactly like a fucking bomb". In the same "Real Time" interview, entrepreneur Mark Cuban, one of the panelists on the show, stated that he called Mohamed on the phone to discuss the event and Mohamed's interest in technology ...

  6. Timer - Wikipedia

    en.wikipedia.org/wiki/Timer

    A typical kitchen timer. A timer or countdown timer is a type of clock that starts from a specified time duration and stops upon reaching 00:00. An example of a simple timer is an hourglass. Commonly, a timer triggers an alarm when it ends. A timer can be implemented through hardware or software.

  7. Fuze - Wikipedia

    en.wikipedia.org/wiki/Fuze

    A fuze assembly may include more than one fuze in series or parallel arrangements. The RPG-7 usually has an impact (PIBD) fuze in parallel with a 4.5 second time fuze, so detonation should occur on impact, but otherwise takes place after 4.5 seconds. Military weapons containing explosives have fuzing systems including a series time fuze to ...

  8. Doomsday Clock - Wikipedia

    en.wikipedia.org/wiki/Doomsday_Clock

    Before January 2020, the two tied-for-lowest points for the Doomsday Clock were in 1953 (when the Clock was set to two minutes until midnight, after the U.S. and the Soviet Union began testing hydrogen bombs) and in 2018, following the failure of world leaders to address tensions relating to nuclear weapons and climate change issues. In other ...

  9. Egg timer - Wikipedia

    en.wikipedia.org/wiki/Egg_timer

    Countdown timers not specifically for eggs are also available for general kitchen and timing use. For example, the clockwork Memo Park timer had a countdown of up to sixty minutes and was sold attached to a keyring, its original purpose being to remind motorists when their parking meter was due to expire. [5]

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