Many stories from antiquity involve flight, such as the Greek legend of Icarus and Daedalus, and the Vimana in ancient Indian epics. Around 400 BC in Greece, Archytas was reputed to have designed and built the first artificial, self-propelled flying device, a bird-shaped model propelled by a jet of what was probably steam, said to have flown some 200 m (660 ft).[6][7] This machine may have been suspended for its flight.[8][9]
Some of the earliest recorded attempts with gliders were those by the 9th-century poet Abbas Ibn Firnas and the 11th-century monk Eilmer of Malmesbury; both experiments injured their pilots.[10] Leonardo da Vinci researched the wing design of birds and designed a man-powered aircraft in his Codex on the Flight of Birds (1502).
Le Bris and his glider, Albatros II, photographed by Nadar, 1868
In 1799, Sir George Cayley set forth the concept of the modern airplane as a fixed-wing flying machine with separate systems for lift, propulsion, and control.[11][12] Cayley was building and flying models of fixed-wing aircraft as early as 1803, and he built a successful passenger-carrying glider in 1853.[13] In 1856, Frenchman Jean-Marie Le Bris made the first powered flight, by having his glider "L'Albatros artificiel" pulled by a horse on a beach.[citation needed] Then Alexander F. Mozhaisky also made some innovative designs. In 1883, the American John J. Montgomery made a controlled flight in a glider.[citation needed] Other aviators who made similar flights at that time were Otto Lilienthal, Percy Pilcher, and Octave Chanute.
Sir Hiram Maxim built a craft that weighed 3.5 tons, with a 110-foot (34-meter) wingspan that was powered by two 360-horsepower (270-kW) steam engines driving two propellers. In 1894, his machine was tested with overhead rails to prevent it from rising. The test showed that it had enough lift to take off. The craft was uncontrollable, which Maxim, it is presumed, realized, because he subsequently abandoned work on it.[14]
In the 1890s, Lawrence Hargrave conducted research on wing structures and developed a box kite that lifted the weight of a man. His box kite designs were widely adopted. Although he also developed a type of rotary aircraft engine, he did not create and fly a powered fixed-wing aircraft.[15]
Between 1867 and 1896 the German pioneer of human aviation Otto Lilienthal developed heavier-than-air flight. He was the first person to make well-documented, repeated, successful gliding flights.
Selasa, 06 Maret 2012
Langganan:
Posting Komentar (Atom)
Bestseller
-
An electric aircraft runs on electric motors rather than internal combustion engines, with electricity coming from fuel cells, solar cells, ...
-
3M Dry Erase Board, 6'W x 4'H, Melamine Surface, Mahogany Finish Frame The most affordable Online widescreen monitor 3M(TM) Melami...
-
HP TFT7600 Rackmount Monitor And Keyboard Cheap Online widescreen monitor HP Business Support Center - eSupport for Small and Medium Busin...
-
3M MMMC3624LC Cork Board, Wide Screen Style, 36"" x 24"", Graphite Blend Cork, Light Cherry Finish Frame For Sale Onli...
-
3M Cork Bulletin Board, 4'W x 3'H, Graphite Blend Cork, Mahogany Finish Frame Best Reviews widescreen monitor Free Shipping ( Cork...
-
Draper Silhouette/Series M, 108, WideScreen, Matt White - 202173 Affordable widescreen monitor Draper Microscreen Ultra Portable Projectio...
-
Fellowes 4801001 Privacy Filter,17in WidescreenLaptop/LCD For Sale Prices widescreen monitor Find best value and selection for your Fellow...
-
Compucessory Notebook Privacy Screen Filter - 12.1" LCD Online Sales widescreen monitor Compucessory 20660 Notebook Privacy Screen Fi...
-
TOPEAK Panoram V12 12 Function Cycling Computer Wireless Version Cheapest Online widescreen monitor Topeak Panoram V12 12 Function Cycling...
-
Tatung 31.5- COMMERCIAL GRADE LED DISPLAY 16:9 1920X1080 (ITEM ALSO KNOWN AS : TAT-TME32) [tme32] Sale widescreen monitor 31.5- COMMERCIAL...
Categories
- 12 volt tv (1)
- 15 digital frame (1)
- 19 lcd tv dvd combo (1)
- 19 tv (1)
- 19 tv combo (1)
- 21 touch screen monitor (1)
- 24 inch lcd tv (1)
- 24 tv (1)
- 27 inch ips monitor (1)
- 29 inch tv (1)
- 32 computer monitor (1)
- 32 inch computer monitor (2)
- 32 inch monitor (1)
- 32 inch sony flat screen tv (1)
- 32 inch tv (1)
- 3ccd video camera (1)
- 55 inch tv (1)
- 55 led tv rca (1)
- a cheap electric fireplace with glass embers (1)
- acer aspire v5 (1)
- acer aspire v5-471 (1)
- acer aspire v5-571 (1)
- acer v5 (1)
- aspire v5 (1)
- best 15 inch hd tv (1)
- camcorder (1)
- camcorder hd professional (1)
- canon camcorder (1)
- canon xl2 (1)
- cherry tv stand (1)
- cherry wood tv stands (1)
- coby tv (1)
- computer monitor (1)
- computer touch screen monitor (1)
- corner tv stand (1)
- desktop computer (1)
- digital photo display (1)
- digital photo frame (1)
- digital video picture frame (1)
- dimplex electric fireplace tv stand (1)
- dimplex fireplace (2)
- dual monitor (1)
- electric fireplace (1)
- electric fireplace tv stand (1)
- espresso tv stand (1)
- fireplace tv console (1)
- fireplace tv stand (1)
- fireplaces (1)
- flat screen tv (1)
- furniture (1)
- gas fireplace (2)
- gemmy inflatable (1)
- gps fishfinder (2)
- hp envy 27 27-inch diagonal ips led backlit monitor (1)
- hp monitors with built in speakers (1)
- hp touch screen monitor (1)
- humminbird (1)
- humminbird 998c hd si (1)
- humminbird sonar (1)
- inflatable movie screen (1)
- inflatable projection screen (1)
- inflatable projector screen (1)
- inflatable screen (2)
- laptop (1)
- laptop touch screen (2)
- large computer monitor (1)
- led tv (4)
- lowrance elite (1)
- lowrance elite 7 (1)
- lowrance elite 7 hdi (1)
- lowrance fishfinder (1)
- marcum (1)
- marcum cameras (1)
- marcum underwater camera (1)
- marine gps (1)
- media console (1)
- media fireplaces (1)
- movie projector screen (1)
- outdoor movie screen (1)
- professional camcorder (1)
- raymarine (2)
- raymarine c90w (1)
- raymarine e90 (1)
- raymarine e90w (2)
- samsung 40 led 240hz (1)
- signs (1)
- sony 32 tv (1)
- sony flat screen tv (1)
- sony hd camcorder (1)
- sony professional video camera (1)
- sony tv (1)
- stand tv 60 (2)
- televisions (2)
- touch screen monitors (1)
- tv (3)
- tv dvd combo (1)
- tv entertainment centers (1)
- tv flat screen stands (2)
- tv stand (3)
- un40eh6000 (1)
- un40eh6000fxza (1)
- underwater camera (1)
- value city furniture store outlet (1)
- widescreen monitor (969)
- wood corner tv stands (1)
- xxl-tv (2)
ALL Products
Diberdayakan oleh Blogger.
0 komentar:
Posting Komentar