Реферат по истории на тему Родоначальники авиации (на английском языке)

The history of aviation extends for more than two thousand years, from the earliest forms of aviation such as kites and attempts at tower jumping to supersonic and hypersonic flight by powered, heavier-than-air jets. Kite flying in China dates back to several hundred years BC and slowly spread around the world.
Important landmarks and events along the way to the invention of the airplane include an understanding of the dynamic reaction of lifting surfaces (or wings), building absolutely reliable engines that produced sufficient power to propel an airframe, and solving the problem of flight control in three dimensions. Once the Wright brothers demonstrated that the basic technical problems had been overcome at the start of the 20th century, military and civil aviation developed quickly.
Purpose of the work: to consider the history of aviation and the Pioneers of aviation.
Work tasks:
• to consider the history of aviation
• to analyze the first flights
 
From the history of aviation
Men have wanted to fly for more than two thousand years. Observations of flying birds gave man the idea of human flight. Every nation has many legends and tales about birdmen and magic carpets.
One of the most famous Greek legend is the legend of Daedalus and his son Icarus who made wings and fastened them on with wax. Daedalus landed in safety, Icarus was not so careful and he flew closer and closer to the sun. The wax melted, the wings came off and he fell into the sea.
The first scientific principles of human flight appeared in the 14-th century. The problem was studied by the great scientist Leonardo de Vinci. He observed the flight of birds, studied the air and its currents and designed a flying machine the wings of which were operated by a man.
But the first actual flight which man made was that in the balloon. In October 1783 the Montgolfier brothers in France sent two men almost 25 metres up in a balloon which descended 10 minutes later, about 2.5 kilometres away.
The first Russian aircraft designer was Alexander Mozhaisky. His airplane, a monoplane, with two light steam engines was tested on August I, 1882. With the first Russian pilot, I.N. Golubev the plane rose into the air and flew a distance of 200 metres before it landed.
At that time the same work was being conducted by Otto Lilienthal, a remarkable German inventor. In 1891 he made his flight in a glider covering 35 metres. In 1903 two Americans, the brothers Wilbur and Orville Wright, built their aeroplane. It flew only 32 metres but it was the first aeroplane with an internal combustion engine that was a big step forward.