RFA Wave Knight Conducting RAS Operations. Replenishment at sea (RAS) (North Atlantic Treaty Organisation/Commonwealth of Nations) or Underway replenishment (UNREP) (US Navy) is a method of transferring fuel, munitions, and stores from one ship to another while under way. 1 History 1.1 Concept.
The international non-profit organization Council on Tall Buildings and Urban Habitat (CTBUH) was formed in 1969 and announces the title of The World's Tallest Building and sets the standards by which buildings are measured. It maintains a list of the 100 tallest completed buildings in the world. The organization currently ranks Burj Khalifa in Dubai as the tallest at 828 m (2,717 ft).
Described as both a âVertical Cityâ and âA Living Wonder,â Burj Khalifa, developed by Dubai-based Emaar Properties PJSC, is the worldâs tallest building. Rising gracefully from the desert, Burj Khalifa honors the city with its extraordinary union of art, engineering and meticulous craftsmanship. At 828 meters (2,716.5 ft), the 200-storey Burj Khalifa has over 160 habitable stories, the most of any building in the world. The tower was inaugurated on January 4, 2010, to coincide with the fourth anniversary of the Accession Day of His Highness Sheikh Mohammed Bin Rashid Al Maktoum as the Ruler of Dubai.