ராக்கெட் எப்படி பறக்கும் !! ப்ரஹ்மானந்தம் கேள்வி ?
You might have heard
the phrase “It is not rocket science” tossed around!. When someone says “It’s
not rocket science,” what they really mean is that something is not so
difficult. Rocket scientists are brilliant people, but rocket science is based
on concepts that we understand.
Rocket propulsion is
defined as ‘the force that is used by
the rocket to take off from the ground and into the atmosphere’.
Thrust is the force
which moves any aircraft through the air. Thrust is generated by the propulsion
system of the aircraft. Different propulsion systems develop thrust in
different ways, but all thrust is generated through some application of
Newton's third law of motion. For every action there is an equal and opposite
reaction. In any propulsion system, a working fluid is accelerated by the
system and the reaction to this acceleration produces a force on the system. A
general derivation of the thrust equation shows that the amount of thrust
generated depends on the mass flow through the engine and the exit velocity of
the gas.
During and following
World War II, there were a number of rocket- powered aircraft built to explore
high speed flight.
With regards – S. Sampathkumar
27.5.2023
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