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  2. Relativity of simultaneity - Wikipedia

    en.wikipedia.org/wiki/Relativity_of_simultaneity

    If two events happen at the same time in the frame of the first observer, they will have identical values of the t-coordinate. However, if they have different values of the x-coordinate (different positions in the x-direction), they will have different values of the t' coordinate, so

  3. List of unmanned aerial vehicle-related incidents - Wikipedia

    en.wikipedia.org/wiki/List_of_unmanned_aerial...

    Safety concerns have been raised due to the potential for an ingested drone to rapidly disable an aircraft engine, [1] and several near-misses and verified collisions have involved hobbyist drone operators flying in violation of aviation safety regulations. [1] [2] UAVs have historically had a much higher loss rate than manned military aircraft.

  4. At least 5 shows canceled after drones fell from the sky at ...

    www.aol.com/least-5-shows-canceled-drones...

    At least five drone shows have been canceled, or have paused the use of the systems, after several drones struck a crowd at a holiday show in Orlando on December 21.

  5. Boy 'Fighting for His Life' and Multiple People Injured as ...

    www.aol.com/lifestyle/boy-fighting-life-multiple...

    The incident occurred during a drone show in Orlando, Fla., on Saturday, Dec. 21 Boy 'Fighting for His Life' and Multiple People Injured as Drones Fall From Sky in Holiday Show Skip to main content

  6. History of unmanned aerial vehicles - Wikipedia

    en.wikipedia.org/wiki/History_of_unmanned_aerial...

    Utilization was limited to a 4-drone attack on a beached Japanese merchant ship in the Russell Islands at the end of July followed by expenditure of 46 drones in the northern Solomon Islands. [29] Two hits and two near-misses were scored on the stationary ship. [29] Several of the later drones failed to reach their targets, but most were ...

  7. Drones fall from sky during Orlando holiday light show ...

    www.aol.com/news/drones-fall-sky-during-orlando...

    Drones take off for a practice flight of a a holiday show in Holly, Michigan in this Nov. 16, 2021 file photo. A holiday drone show in Orlando, Florida took a tragic turn when more than a dozen of ...

  8. High-altitude platform station - Wikipedia

    en.wikipedia.org/wiki/High-altitude_platform_station

    A high altitude platform can provide observation or communication services. A high-altitude platform station (HAPS, which can also mean high-altitude pseudo-satellite or high-altitude platform systems), also known as atmospheric satellite, is a long endurance, high altitude aircraft able to offer observation or communication services similarly to artificial satellites.

  9. Regulation of unmanned aerial vehicles - Wikipedia

    en.wikipedia.org/wiki/Regulation_of_unmanned...

    Flying UA/drones above some parks, coasts, and ports including Tottori Sand Dunes is restricted by the by-laws in some prefectures of Japan. [citation needed] Like many other countries, it is a kind of trespass to fly UA/drones indoors, near above the dwellings, or near above its surrounding soil without the permission of a person with ...