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  2. Doomsday Clock - Wikipedia

    en.wikipedia.org/wiki/Doomsday_Clock

    The Clock was moved to 150 seconds (2 minutes, 30 seconds) in 2017, then forward to 2 minutes to midnight in 2018, and left unchanged in 2019. [6] It was moved forward to 100 seconds (1 minute, 40 seconds) in 2020, [7] 90 seconds (1 minute, 30 seconds) in 2023, [8] and 89 seconds (1 minute, 29 seconds) in 2025. [9]

  3. 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 ...

  4. Pencil detonator - Wikipedia

    en.wikipedia.org/wiki/Pencil_detonator

    For example, a 2-hour pencil detonator might be accurate to plus or minus 5 minutes, whereas the version offering a 6-hour delay could have a precision of plus or minus 15 minutes. Both No. 9 and No. 10 delays were also significantly affected by the ambient temperature, and were issued along with a chart of temperature corrections—but no ...

  5. 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.

  6. Keep Talking and Nobody Explodes - Wikipedia

    en.wikipedia.org/wiki/Keep_Talking_and_Nobody...

    Each bomb will also have a countdown timer; if the timer reaches zero, the bomb will explode. Bombs will also have a maximum number of strikes resulting from errors made during defusing (also speeding the timer), and if that maximum is reached, the bomb will also explode.

  7. Trinity (nuclear test) - Wikipedia

    en.wikipedia.org/wiki/Trinity_(nuclear_test)

    A crucial favorable weather report came in at 04:45, [68] and the final twenty-minute countdown began at 05:10, read by Samuel Allison. [102] A rocket launched at 5:25 to signal five minutes before detonation; another rocket fired at 5:29. At 5:29:15, a switch in the control bunker started the detonation timer. [35] By 05:30 the rain had gone. [68]

  8. 'Oh my God, no!' Space shuttle Challenger exploded 39 years ago

    www.aol.com/oh-god-no-space-shuttle-100128543.html

    According to NASA, the shuttle was lost about 15 minutes before it was set to touch down at Kennedy Space Center. The shuttle disintegrated as it reentered the atmosphere, and pieces of the craft ...

  9. Ticking time bomb scenario - Wikipedia

    en.wikipedia.org/wiki/Ticking_time_bomb_scenario

    Works of fiction, such as the television series 24, often rely on ticking time bomb scenarios for dramatic effect. According to the Parents Television Council, given that each season represents a 24-hour period, Jack Bauer encounters someone who needs torturing to reveal a ticking bomb on average 12 times per day. [16]