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For the first in the world, Rocket was manufactured using gunpowder 700 years ago during the Sung Dynasty in China. Such documents were found that the Navy of the Sung Dynasty used it in 1245. Later Mongols adopted Chinese Rocket technology. This important discovery increased in Saudi Arabia, Iraq, Iran, Seriya in 13th century. Modern rocket technology was developed after 19 centuries. Powerful Rocket developed after the Second World War. In this period, they were converted in to war weapons by placing the Rocket's upper.
In 1942, Germany's official Rocket center practiced towards the city of London by Bombing V-2 Rockets. War figures show that 1115 Bombs were dropped on England in the seventh month. The V-2 Rockets caused great loss of money in England. In this Bombing, 2724 people were killed and about 6000 were injured. In the present, it is used to put humans satellites in the class of Earth and taking humans to space and research in space in being done. Human beings have reached the moon with the help of Rocket and preparing to go Mars. In this article, I will explain about the Rocket, its working principle and the rampant.
Different between Plane and Rocket-
The Rocket word created by the 'Rocchetta' of the Italian word. It means the object that has threads on it. Rocket is a cylinder shaped vehicle that leaves exhaust gasses burning in its opposite direction at very high speed by which momentum is created in it and it keeps moving forward.
The biggest difference in Rocket and plane is that Plane can only fly in the Earth's atmosphere because it needs oxygen to burn its fuel.
On other hand, the Rocket can fly also in the space and vacuum with the Earth's atmosphere because it fly with takes oxidiser which keeps it full of oxygen so it can fly at any and any height.
How do Rockets works-
Rocket works on the principle of third law of motion of- Opposite and equal reaction in the direction of each action.
But now the question is that in space, there is no vacuum, there is no any air, then whose pressure is on the Rocket. So its answer is that Rocket takes out the exhaust from the back of the Nozzle behind it at a very fast speed. At the same time, those exhaust gasses also move the Rocket in their reverse direction as fast as they react.
Rocket fuel and Engine-
There are two types of fuel used in Rocket engines called Propellant-
1) Solid propellant
2) Liquid propellant
But due to solid fuel is more being useful and environment friendly. So now liquid fuel is more uses. Liquid Hydrogen is used for liquid Hydrogen gas marks on -253 c cooling temperature and liquid oxygen is used for the oxidizer. A few hours before the Rocket launch, both of them are filled in separate tanks.
1) Liquid rocket fuel(Liquid Hydrogen).
2) Oxidizer(Liquid oxygen).
3) Pumps that carry fuel and oxygen to the confluence chamber.
4) Confluence chamber were both liquids burn together.
5) The gasses released from the confessional chamber are removed through a thin tube in the middle, so that more thrust can produce.
6)In the last gasses exits.
Launch pad and stages of launch-
The launch pad is a platform with the help of which the Rocket is launched in to words the sky. These launch complex all the facilities for launching.
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