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Old Sunday, August 03, 2008
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Default 18th century

18th century

1720 - [Navigation technology] The Ottoman dockyard architect Ibrahim Efendi invented a submarine called the tahtelbahir. The Ottoman writer Seyyid Vehbi, in his Surname-i-Humayun, compared this submarine to an alligator. He recorded that during the circumcision ceremony for Sultan Ahmed III's sons, "the alligator-like submarine slowly emerged on the water and moved slowly to the sultan, and after staying on the sea for half an hour, submerged in the sea again to the great surprise of the public; then emerged one hour later, with five people walking outside the mouth of this alligator-like submarine, with trays of rice and zerde (a dish of sweetened rice) on their heads." He explained the technical information concerning the submarine "submerging in the sea and the crew being able to breath through pipes while under the sea"

1783 - 1799 - [rocketry] Tipu, Sultan of Mysore (r. 1783-1799) in the south of India, was an experimenter with war rockets and the inventor of iron-cased rocket artillery. He successfully used these iron rockets against the larger forces of the British East India Company during the Anglo-Mysore Wars. His rockets were much more advanced than what the British had seen, chiefly because of the use of iron tubes for holding the propellant; this enabled higher thrust and longer range for the missile (up to 2 km range). After Tipu's eventual defeat in the Fourth Anglo-Mysore War and the capture of the Mysore iron rockets, they were influential in British rocket development and were soon put into use in the Napoleonic Wars Two of his rockets, captured by the British at Srirangapatna, are displayed in the Woolwich Royal Artillery Museum in London. They were the first rockets to have a rocket motor casing made of steel with multiple nozzles. The rocket, 50 mm in diameter and 250 mm long, had a range performance of 900 meters to 1.5 km.

Last edited by Shooting Star; Saturday, June 30, 2012 at 02:37 AM.
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