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  2. Level junction - Wikipedia

    en.wikipedia.org/wiki/Level_junction

    The cross-over structure is sometimes called a diamond junction or diamond crossing in reference to the diamond-shaped center. The two tracks need not necessarily be of the same gauge . A diamond crossing is also used as a component of a double junction , like the one illustrated on the right.

  3. Chinese siege weapons - Wikipedia

    en.wikipedia.org/wiki/Chinese_siege_weapons

    A typical mobile siege tower was five stories tall mounted on axles with two wheels on each side. The tower was pushed forward by men on the lowest storey or pulled by horses and oxen. [6] The king of Wu mentioned it in a passage comparing land armies to the navy. These days in training we use the (same) tactics of land armies for the best effect.

  4. List of twisted buildings - Wikipedia

    en.wikipedia.org/wiki/List_of_twisted_buildings

    When completed, Diamond Tower will be the only building to twist a full 360 degrees along its height. F&F Tower , in Panama City, holds the record for the tightest twist, that is, the highest average rotation per floor, at 5.943 degrees across each of its 53 floors; and as of 2017, it is the completed building with the highest total rotation ...

  5. 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]

  6. 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 ...

  7. Jiuzhang - Wikipedia

    en.wikipedia.org/wiki/Jiuzhang

    Jiuzhang may refer to: . Jiuzhang suanshu, or The Nine Chapters on the Mathematical Art, Chinese mathematics book, composed from the 10th–2nd century BCE; Shu shu Jiuzhang, or Mathematical Treatise in Nine Sections, 13th century Chinese mathematical text by Qin Jiushao

  8. Flak tower - Wikipedia

    en.wikipedia.org/wiki/Flak_tower

    The 'G-Tower' at Augarten, Vienna. The top of the 'L-Tower' is visible to the right. Flak towers (German: Flaktürme) were large, above-ground, anti-aircraft gun blockhouse towers constructed by Nazi Germany. There were a total of 8 flak tower complexes in the cities of Berlin (three), Hamburg (two), and Vienna (three) from 1940

  9. Solar updraft tower - Wikipedia

    en.wikipedia.org/wiki/Solar_updraft_tower

    The solar updraft tower (SUT) is a design concept for a renewable-energy power plant for generating electricity from low temperature solar heat. Sunshine heats the air beneath a very wide greenhouse-like roofed collector structure surrounding the central base of a very tall chimney tower.