For any SPACE tour or SATELLITE launching or satellite maintanence and ASTRONAUTS OR KASMONAUTS transport only we use ROCKETS,if there is no rockets we can't explore space,rocket science is not dufficult it is very easy with small principles.
If a ROCKET want to explore space it cancles GRAVITY & AIR RESISTANCE.Air resistance is nothing but air flows opposes to a object in opposite direction ex: A object wants to go upwards Air resistance acts opposes to downward or if a object goes to a side air resistance flows opposes to it and slow down object.We know that GRAVITY is force it always pulls object towards it ex: if we throw a stone upwards it goes at height untill the gravity cancels then it comes back to earth it is nothing but ESCAPE VELOCITY our earth escape velocity is 11.2 km/s.That means if a object goes with 11.2 km/s earth gravity doesn't works ,there are two types of rockets used one is for low earth orbit it goes below low earth orbit.another is above high earth orbit.
WORKING :
The main priciple of working of rocket is netwons third law that is 'EVERY ACTION THERE IS EQUAL OPPOSITE REACTION' ex:take a rubber and strech with some force then release it goes to normal position that means streching is action and get back to normal position is reaction,this is the only main principle helps to rockwt to explore space.In rockets highly pressured hot gases and flames comes through then the rocket goes through air.
Parts: There are mainly five main parts are there in rockets,those are 1.PAYLOADS it is topmost or tip of the rocket in this astronauts and main parts paylaods are placed in this.2. Guidance system in this navigation and searching rockets paths etc.... are placed in it.3.FUEL TANK it is used to store fuels like Hydrogen,Nitrogen,Kerosine etc...are stores in it.4.OXIDIZEX TANK in this LIQUID OXYGEN is stored because of combustion oxygen is mainly used.5. COMBUSTION CHAMBER all combustion is done in this chamber.another one is output NOZZLE it High pressured gases comes through it.these all parts are called as rocket engine sometimes also rocket thruster.Rocket weight is between 200 -3000 tuns it is based on size and purpose of rocket.For every rocket launching every space station spends thousands of cores it depend on demand,rocket launch place is called as rocket launch station,almost every lauch station is near to the seas because if a rocket fails then it falls in the sea for prevention of people harm.
There are so many stages of rockets it is based on uses,in older days only one stage rockets are used,then we know three stage rocket as example for rockets also attached subengine boosters at two sides,in rocket launching thostand degree of heat releases so people who are intrested to see this is to 2km allows to see.In starting rocket main engine and also boosters are also worked,after some time boosters are removed untill the fuel overed removed boosters has own fuel gps and parachutes engine etc... are in it so the boosters are falls in sea then collects the boosters and modigies and reuses it.The main rocket subengine works some times and removed with fuel tank.
The main engine works untill the rocket reaches the destination,then the main engine also removed and releases the payload like satellite this is three stage rockets and untill this time five stage rockets are successfully lauched this is only used in large destinations.The speed of rocket starts with 0 and above it reaches 28000 km/h .The also main thing is path gor diffetent paths turns with the help of subengine nozzle has spring moving mechanism.this is rocket main base working process.The main working principles of ROCKET is NEWTONS THIRD law only this main prunciples rocket uses.
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