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  2. Russia releases secret footage of 1961 'Tsar Bomba' hydrogen ...

    www.aol.com/news/2020-08-28-russia-releases...

    Developed between 1956 and 1961 as the Soviet Union engaged in a nuclear arms race with the United States, the Tsar Bomba - the King of Bombs - was the largest hydrogen bomb ever and was claimed ...

  3. Video file format - Wikipedia

    en.wikipedia.org/wiki/Video_file_format

    A video file format is a type of file format for storing digital video data on a computer system. Video is almost always stored using lossy compression to reduce the file size. A video file normally consists of a container (e.g. in the Matroska format) containing visual (video without audio) data in a video coding format (e.g. VP9 ) alongside ...

  4. MP4 file format - Wikipedia

    en.wikipedia.org/wiki/MP4_file_format

    Raw MPEG-4 Visual bitstreams are named .m4v but this extension is also sometimes used for video in MP4 container format [21] or in the M4V container format. Mobile phones used to use 3GP, an implementation of MPEG-4 Part 12 (a.k.a. MPEG-4/JPEG2000 ISO

  5. Nuclear explosion - Wikipedia

    en.wikipedia.org/wiki/Nuclear_explosion

    A nuclear explosion is an explosion that occurs as a result of the rapid release of energy from a high-speed nuclear reaction.The driving reaction may be nuclear fission or nuclear fusion or a multi-stage cascading combination of the two, though to date all fusion-based weapons have used a fission device to initiate fusion, and a pure fusion weapon remains a hypothetical device.

  6. Today in History: Nevada is site of first-ever underground ...

    www.aol.com/news/2015-09-19-today-in-history...

    On this day in 1957, the first underground nuclear test was carried out at the Nevada Test Site, a 1,375 square-mile research center located 65 miles away from Las Vegas.The 1,7 kiloton nuclear ...

  7. Rapatronic camera - Wikipedia

    en.wikipedia.org/wiki/Rapatronic_camera

    Nuclear explosion from the Tumbler-Snapper test series in Nevada, circa 1952 photographed by a rapatronic camera less than 1 millisecond after detonation. In this shot, the fireball is about 20 m (66 ft) across. The spikes at the bottom of the fireball are known as the rope trick effect.

  8. List of military nuclear accidents - Wikipedia

    en.wikipedia.org/wiki/List_of_military_nuclear...

    Nuclear bomb damaged in crash [34] During a simulated takeoff, a wheel casting failure caused the tail of a USAF B-47 carrying a Mark 36 Mod 1 nuclear bomb to hit the runway, rupturing a fuel tank and sparking a fire which burned for some 7 hours. [35] The weapon used in-flight insertion and the weapon was in its retracted, unarmed state. [36]

  9. Leipzig L-IV experiment accident - Wikipedia

    en.wikipedia.org/wiki/Leipzig_L-IV_experiment...

    The Leipzig L-IV experiment accident was the first nuclear accident in history. It occurred on 23 June 1942 in a laboratory at the Physical Institute of the Leipzig University in Leipzig, Germany. There was a steam explosion and a reactor fire in the "uranium machine", a primitive form of research reactor. [1]