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 Wysłany: Sob 3:20, 04 Gru 2010 Temat postu: Nike Shox TL Ancient Rocketry Rockets First Develo |
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The availability of black powder,Nike Shox TL, also known as gunpowder, was an important precursor to the development of rockets. It is thought that gunpowder was discovered accidentally by Taoist alchemists in Ninth Century China, while searching for the Elixir of Life.
In the mid-14th Century,Nike Air Max 95 Shoes, the Chinese artillery officer Jiao Yu wrote a book entitled Huolongjing. The book was one of the first to deal exclusively with the science of rocketry and in addition preserving what has been called the perfect recipe for gunpowder, it also includes a description of a device called a water dragon, which is believed to have been a form of rocket developed for the Chinese navy.
Rockets first became known to the Europeans when they were used by the Mongols in their conquests of Russia and Eastern Europe by Genghis Khan and his favourite son, Ogedei Khan. It is believed that the Mongols acquired rocket technology during their invasion of northern China. It has also been suggested that they employed Chinese rocket experts as mercenaries with the Mongol army.
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The earliest written accounts of functional rocket technology date from 13th Century China.
It is not clear when rockets were first used as a weapon,Air Max 91, but the first recorded use is thought to have been in the year 1232 against the Mongols. Ancient Chinese texts from this period describe the use of “fire arrows,” which may have been arrows or crossbow bolts with small gunpowder charges to increase their range. There are also references to iron pots filled with gunpowder that sent shrapnel flying distances up to 2,Air Max 24 7,000 metres. It was also written that they could be heard up to 15 miles away when they exploded.
It has also been proposed that rocketry may have spread throughout Asia in large part due to the emergence of rocket festivals in Laos and southern China in the 13th and 14th Centuries.
The discovery quickly led to the development of gunpowder weapons such as bombs, cannons and rockets.
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