THE INVENTION OF THE AIRCRAFT
Russian inventor Alexander Fedorovich Mozhaisky was the first in the world to conquer the airspace.
From his youth, he dreamed of taking to the air.
In 1877 Mozhaisky made a model aircraft. He demonstrated this model in St. Petersburg. Mozhaisky hoped that he would be allocated funds for the construction of the aircraft. But the tsarist government did not support the inventor.
Then he built the plane at his own expense and lifted it into the air. This machine had wings, coraus , motor, tail and landing gear.
The remarkable invention of Mozhaisky received a worthy assessment of descendants.
SRS №11
Task 1. Translate the text into Uzbek:
If we start heating metals, we will notice that some of them, with the same mass of metal, heat up faster, others slower. This means that metals are thermal conductors. Thermal conductivity is the phenomenon of heat transfer in a body from a hotter place to a less heated place without visible movement of the particles of this body. The high thermal conductivity of metals allows them to be heated and cooled quickly and evenly.
Of the technical metals, copper is the most thermally conductive. The thermal conductivity of iron is much lower. Heat capacity is the amount of heat required to raise the temperature of a body by 1º at a certain temperature. The specific heat capacity of metals is low, which makes it relatively easy to heat them to high temperatures.
Task 2. Write down translating the words and phrases given in brackets into Russian.
1. Uzbekistan noticeably came out ( jahon bozoriga ). 2. ( Navoi Viloyatida ) intensively develops textile, light industry and electronics. 3. Minerals and rocks are called minerals, ( inson tomonidan foydalaniladigan ). 4. Recently, there has been a significant increase in the volume of blasted rocks ( bizning mamlakatimizda ). 5. In Uzbekistan ( ch yanni ) they are produced in the Bekabad metallurgical plant.
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