History of flightThe beauty and freedom of movement to all directions over the barrier of the birds is motivated and we want to attract the birds to fly. Although you may not be able to create natural, human-like bird wings, but we are human, we are trying to find ways to fly, which can be seen from the history of aviation. Any of the following:Leonardo da Vinci's Ornithopter1452-1519, Leona domain da Vinci (Leonardo da Vinci) details the flight of birds and more than 100 other model drawing, his concept of a helicopter.One of The Montgolfier's BalloonsR. 1783 Brothers grille Gu lomngaklofi (Joseph and Jacques Montgolfier) ye make the balloon lighter than air by air-filled something lighter to lighter air lifting strength. There are several types, and those who succeed in creating vehicles that are lighter than air, is the county fair di Lin nan von chapep (Count Ferdinand von Zeppelin) One Version of a GliderR. 1804 George kheli (George Cayley) study of the flight of the birds have been designed using the glider can glide far from waokradat up to 60 feet, it creates a full and successful people from the Hill by Ron there is no mandatory. In 1809 was published, describing the journey of the problem that causes the weight surface. Using the force of air resistance is resistance to.
การแปล กรุณารอสักครู่..