How does a spacecraft land so accurately on a planet or satellite?

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I will request you to try it a little easier. The experiments are as follows.

Material

1. Thread approximately 30 cm length - needle or weave thread

2. A small weight/weight - a piece of wax light or anything like that work.

Tie this weight to one side of the thread. Hold the other side of the thread tightly in your finger. Now keep rotating the wrist in such a way that the weight starts cutting around your fingers.

Note the difference between slowing or speeding. Also, take into consideration what happens when the length of the thread is reduced or exceeded.

Now you suddenly leave the thread. The weight with the thread will fall away from a little. Do this once or twice and try to get the weight at different times and at different distances.

Now let's go in intervals

Our earth and all the planets and stars keep on spreading gravitational force 24 × 4 on all four sides. The force of gravity of each planet or star varies. Therefore, every star and planetary gravitational force continues to work at intervals for some distance. The distance it will affect now depends on the force of gravity of that planet.

The force of gravity keeps everything held on the stars or the planet tightly. Not only this, he keeps pulling things even in the interval. Earth also does the same. Earth's natural satellite - the moon also keeps pulling things towards it by the force of gravity. The gravitational forces of the Earth and the Moon work against each other in Disha. That is, both keep pulling everything in the interval between Earth and Moon.

At a distance of 34000 m away from the earth, there is such a limit that here the gravitational forces of earth and moon are acting in the same direction but against each other. If something is rakhi here, the moon and the earth will continue to pull in the direction with the same strength but against it. That is, that thing will not move from place to place.

Rockets only serve to carry the satellite. After reaching this distance of 37000 meters, the rocket places the satellite/holiday vehicle in the motion of the earth here. Here the work of the rocket ends, so they abandon it.

Now you remember our experiment. We had rotated weights tied to threads. Now there are no threads in space. The gravitational force of the earth (like threads) forces the orbiter to orbit. And the aviator is engaged in the orbiter. The leisure vehicle revolves around the speed of the Earth at a speed of 1400 m.

Now in the parikrama, the holiday vehicle arrives at such a point/point that the points are able to mark the moon. At this point, give him a light push. They move slightly towards the moon. Now the path of circumambulation is drawn towards the moon. That is, the circumambulation route becomes ellipse. The circumambulation route will look like a lightly drawn rubber band.

After this drawn point, the orbital path of the vacation vehicle goes slowly towards the earth. When the leisure vehicle crosses this drawn point and moves towards the earth, its speed increases slightly. This action is done several times.

Initially, the circumambulation route was at a distance of 34000 m from the earth. Now, when the points are drawn towards the moon, the points move away from the earth, but the rest of the orbital path does not change. In the end, the points cover a distance of 4000 km from the earth and the speed of the vehicle is 25000 km.

How to increase the distance of a point

Small firearms are attached to the holiday vehicle. Whom some. They are lit for a second. These create thrust and outward pressure. Because of this, the revolving point moves towards the moon. The speed of the vehicle also increases with the ignition of small firearms. We will not go in its depth - otherwise, this answer will be very long.

Now when there is a holiday vehicle at the point of 8000, they push it a little with a small fire arrow. Now the holiday vehicle enters the Chandra's Garutwa traction forever. Vacation vehicles now revolve around the moon. Now the fireballs light up and cover it lightly near the moon. And also increases the speed of the leisure vehicle. Gradually, the effect of the moon's trajectory increases, but due to accelerating the speed of the vehicle, they remain in the orbit. The speed of the vehicle here is up to 30000 mph.

Try the experiment again. Shorten the thread and keep twisting. The speed has to be increased to keep the weight moving.

Now, at some point in time, there is neither a vacation vehicle on the moon. Now when it comes to the place where it has to land, its small fireballs make it towards the earth of the moon. And for the last time, they push the vacation vehicle in the direction of the moon and at that moment small fire arrows are lit. Now Agniabana's attitude should be towards the moon. Therefore, the power of Agnibana opposes the singing of the holiday vehicle and lightly lowers the leisure vehicle to the moon, reducing the speed.

Now if you want to bring the vehicle back to Earth, then all these actions have to be done only in reverse order which will bring the vehicle to Earth.

If you have to go to any planet - Mars or Venus, then the distance/difference and direction will change, but the action will be the same.