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Point Of No Return
The point of no return (PNR or PONR) is the point beyond which one must continue on one's current course of action because turning back is dangerous, physically impossible or difficult, or prohibitively expensive. The point of no return can be a calculated point during a continuous action (such as in aviation). A particular irreversible action (such as setting off an explosion or signing a contract) can be a point of no return. Origins and spread of the expression The phrase "point of no return" originated as a technical term in air navigation to refer to the time and/or location during a flight at which the aircraft no longer has enough fuel to return to its originating airfield. Important decisions may need to be made prior to the point of no return, since it will be unsafe to turn around and fly back if the pilot changes their mind after that point. Otherwise, it may correspond to the aircraft's maximal safe range in a situation where the only possible landing site ''is'' th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation
Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as hot air balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet which permitted a major form of transport throughout the world. Etymology The word ''aviation'' was coined by the French writer and former naval officer Gabriel La Landelle in 1863. He derived the term from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dice
Dice (singular die or dice) are small, throwable objects with marked sides that can rest in multiple positions. They are used for generating random values, commonly as part of tabletop games, including dice games, board games, role-playing games, and games of chance. A traditional die is a cube with each of its six faces marked with a different number of dots ( pips) from one to six. When thrown or rolled, the die comes to rest showing a random integer from one to six on its upper surface, with each value being equally likely. Dice may also have polyhedral or irregular shapes, may have faces marked with numerals or symbols instead of pips and may have their numbers carved out from the material of the dice instead of marked on it. Loaded dice are designed to favor some results over others for cheating or entertainment. History Dice have been used since before recorded history, and it is uncertain where they originated. It is theorized that dice developed from the practice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toungoo Dynasty
, conventional_long_name = Toungoo dynasty , common_name = Taungoo dynasty , era = , status = Empire , event_start = Independence from Ava , year_start = 1510 , date_start = 16 October , event_end = End of dynasty , year_end = 1752 , date_end = 23 March , event_pre = , date_pre = 1485 , event1 = , date_event1 = 1510–99 , event2 = , date_event2 = 1599–1752 , event3 = , date_event3 = , event4 = , date_event4 = , p1 = Ava Kingdom , p2 = Hanthawaddy Kingdom , p3 = Shan states , p4 = Lan Na Kingdom , p5 = Ayutthaya Kingdom , p6 = Lan Xang Kingdom , p7 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Naungyo
The Battle of Naungyo ( my, နောင်ရိုးတိုက်ပွဲ ) was a land battle fought between the armies of the Toungoo Kingdom and Hanthawaddy Kingdom during the Toungoo–Hanthawaddy War (1534–41) in late 1538. The battle was the most decisive Toungoo victory of the war. Toungoo armies led by Gen. Kyawhtin Nawrahta (later Bayinnaung) decisively defeated a numerically far superior and better armed force of Hanthawaddy led by Gen. Binnya Dala (Pegu general), Binnya Dala and Gen. Minye Aung Naing. Only a small portion of the Hanthawaddy forces made it to their intended destination–the fortified city of Prome (Pyay). A decimated Hanthawaddy was no longer in a position to retake the lost territories from Toungoo. The battle is one of the most famous battles in Burmese history. It was after this battle that Kyawhtin Nawrahta was given the title of Bayinnaung (lit. Royal Elder Brother) by his brother-in-law King Tabinshwehti. The battle is deemed "the first char ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burmese History
The history of Myanmar (also known as Burma; my, မြန်မာ့သမိုင်း) covers the period from the time of first-known human settlements 13,000 years ago to the present day. The earliest inhabitants of recorded history were a Tibeto-Burman languages, Tibeto-Burman-speaking people who established the Pyu city-states ranged as far south as Pyay and adopted Theravada, Theravada Buddhism. Another group, the Bamar people, entered the upper Irrawaddy valley in the early 9th century. They went on to establish the Pagan Kingdom (1044–1297), the first-ever unification of the Irrawaddy valley and its periphery. The Burmese language and Burma culture slowly came to replace Pyu norms during this period. After the First Mongol invasion of Burma in 1287, several small kingdoms, of which the Kingdom of Ava, the Hanthawaddy Kingdom, the Kingdom of Mrauk U and the Shan States were principal powers, came to dominate the landscape, replete with ever-shifting alliances and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chu–Han Contention The Chu–Han Contention ( zh, , lk=on) or Chu–Han War () was an interregnum period in ancient China between the fallen Qin dynasty and the subsequent Han dynasty. After the third and last Qin ruler, Ziying, unconditionally surrendered to rebel forces in 206 BCE, the former Qin Empire was divided by rebel leader Xiang Yu into the Eighteen Kingdoms, which were ruled by various rebel leaders and surrendered Qin generals. A civil war soon broke out, most prominently between two major contending powers – Xiang |
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