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  2. Diamond Tower (Jeddah) - Wikipedia

    en.wikipedia.org/wiki/Diamond_Tower_(Jeddah)

    Burj Almasa (formerly recognized as the Diamond Tower) is a planned 94-story, 432-metre (1,417 ft) supertall skyscraper in Jeddah, Saudi Arabia. The tower is designed primarily for residential use. When completed, it is anticipated to be Saudi Arabia's second-tallest building as well as one of the tallest residential buildings globally. [1]

  3. List of tallest freestanding structures - Wikipedia

    en.wikipedia.org/wiki/List_of_tallest...

    Yangtze River Crossing North Tower 347 1,138 2003 Lattice tower Electricity pylon China Jiangyin: Second tallest set of electricity pylons in the world Yangtze River Crossing South Tower 347 1,138 2003 Lattice tower Electricity pylon China Jiangyin: Second tallest set of electricity pylons in the world The Center: 346 1,135 1998 Skyscraper Hong ...

  4. Level junction - Wikipedia

    en.wikipedia.org/wiki/Level_junction

    This type is also called as "True Diamond Crossing". At Newark flat crossing [1] in the United Kingdom, where the East Coast Main Line and Nottingham to Lincoln Line cross. This is the fastest flat-crossing in the UK, with trains travelling north-south allowed to cross the junction at 100 mph (160 km/h).

  5. Radio masts and towers - Wikipedia

    en.wikipedia.org/wiki/Radio_masts_and_towers

    [2] (pp 79–81) One of the first types used was the diamond cantilever or Blaw-Knox tower. This had a diamond (rhombohedral) shape which made it rigid, so only one set of guy lines was needed, at its wide waist. The pointed lower end of the antenna ended in a large ceramic insulator in the form of a ball-and-socket joint on a concrete base ...

  6. Equatorial mount - Wikipedia

    en.wikipedia.org/wiki/Equatorial_mount

    A large German equatorial mount on the Forststernwarte Jena 50cm Cassegrain reflector telescope. An equatorial mount is a mount for instruments that compensates for Earth's rotation by having one rotational axis, called polar axis, parallel to the Earth's axis of rotation. [1] [2] This type of mount is used for astronomical telescopes and cameras.

  7. Barbette - Wikipedia

    en.wikipedia.org/wiki/Barbette

    US Army 16-inch gun M1919 on barbette mount M1919; this was a high-angle mount with elevation to 65°. Barbettes are several types of gun emplacement in terrestrial fortifications or on naval ships. In recent [when?] naval usage, a barbette is a protective circular armour support for a heavy gun turret.