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  • List of Chinese inventions

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    China has been the source of many innovations, scientific discoveries and inventions. This includes the Four Great Inventions: papermaking, the compass, gunpowder, and printing (both woodblock and movable type). The list below contains these and other inventions in China attested by archaeological or historical evidence. The historical region now known as China experienced a history involving mechanics, hydraulics and mathematics applied to horology, metallurgy, astronomy, agriculture, engineering, music theory, craftsmanship, naval architecture and warfare. By the Warring States period (403–221 BC), inhabitants of the Warring States had advanced metallurgic technology, including the blast furnace and cupola furnace, while the finery forge and puddling process were known by the Han Dynasty (202 BC–AD 220). A sophisticated economic system in imperial China gave birth to inventions such as paper money during the Song Dynasty (960–1279). The invention of gunpowder during the mid 9th century led to an array of inventions such as the fire lance, land mine, naval mine, hand cannon, exploding cannonballs, multistage rocket and rocket bombs with aerodynamic wings and explosive payloads.

  • USS Lexington (CV-2)

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    USS Lexington (CV-2), nicknamed "Lady Lex", was an early aircraft carrier built for the United States Navy. She was the lead ship of the ; her only sister ship, , was commissioned a month earlier. Originally designed as a battlecruiser, she was converted into one of the Navy's first aircraft carriers during construction to comply with the terms of the Washington Naval Treaty of 1922, which essentially terminated all new battleship and battlecruiser construction. The ship entered service in 1928 and was assigned to the Pacific Fleet for her entire career. Lexington and Saratoga were used to develop and refine carrier tactics in a series of annual exercises before World War II. On more than one occasion these included successfully staged surprise attacks on Pearl Harbor, Hawaii. The ship's turbo-electric propulsion system allowed her to supplement the electrical supply of Tacoma, Washington, during a drought in late 1929 to early 1930. She also delivered medical personnel and relief supplies to Managua, Nicaragua, after an earthquake in 1931.Lexington was at sea when the Pacific War began on 7 December 1941, ferrying fighter aircraft to Midway Island.

  • HLN (TV network)

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    HLN (Headline News) is an American pay television news channel that is owned by CNN. Originally branded as CNN2, and later CNN Headline News, the channel was originally structured to broadcast a tightly-formatted 30-minute newswheel 24 hours a day, with freshly updated information that briefly covered various areas of interest (such as national news, sports, entertainment, weather and business). Since 2005, however, its format has increasingly shifted to long-form tabloid-, opinion-, crime-, and entertainment news-related programming. In 2014, the network further re-focused with an emphasis on social media, but this practice was dropped by 2016 in favor of focusing more towards traditional news programming, with the remainder of its lineup dedicated to true crime programming (drawing heavily from the library of defunct sister network Court TV, as well as new original programs within the genre). As of July 2015, HLN is available to approximately 97 million American households (83.4% of households with at least one television set) in the United States making it the most distributed American subscription network.

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