-- Because those things have been damaged and scrapped, and have lost their power, they will gradually lose altitude due to stalling as they fly around the earth day after day.

According to scientific theories, man-made objects rely on inertia to orbit at a minimum altitude of 120 kilometers, below which they will quickly fall into the dense atmosphere and burn up in friction.

The amount of large space junk and the number of scrapped satellites is very large, and there must be at least 20,000 pieces in the entire orbit. Among them, the country that contributes the most to these space junks is Russia, the United States is second, and the third is our Huaxia.

Although it may not be a glorious thing, it can be seen that the creation of space junk is also related to the strength of the country.

Of course, these are all off-topic.

Wang Yan now needs to find a scrapped satellite, or enough space junk to carry it. This is also the reason why he runs around the equator, because of all the satellites, it runs the most around the equator.

That said, it's a busy traffic line and it's easiest to catch a ride to work.

However, whether it is a satellite or a space orbit junk. It is not easy to ride them, because they are very fast, reaching 7.9 kilometers per second.

The reason why the numbers are so accurate is because if they go at a speed of less than 7.9 kilometers per second, they will quickly fall around it. If it is higher than the orbital velocity, then they will fly away from the Earth.

7.9 kilometers per second is a very exaggerated number, which is seven or eight times the muzzle velocity of a sniper rifle bullet and more than 20 times the speed of sound. At this speed, even a small fragment can produce a tremendous amount of kinetic lethality.

Even if Wang Yan is hit head-on, he will have to lose half his life if he doesn't die. Of course, if Wang Yan is in a stationary state and is hit by a satellite weighing hundreds or thousands of kilograms, he can basically say goodbye to the world.

Wang Yan watched an anti-Japanese drama called "Railway Guerrillas" when he was a child.

Those members of the martial arts team are very good at picking up trains. One of the tricks of picking up the train is that you have to run in the direction of the train, reducing the relative speed of both sides as much as possible.

The smaller the relative velocity, the safer it is.

Therefore, Wang Yan was at an altitude of 100 kilometers and was accelerating in the direction of the earth's rotation, that is, from west to east. In the case of extremely low air content, it is already close to vacuum, and there is less air resistance.

As long as the force is continuously applied, Wang Yan's speed is constantly rising. He easily broke through twice the speed of sound, triple the speed of sound. Moreover, because the air is extremely thin, it is equivalent to no air, which does not even exist when the speed of sound is breached. Flying in this environment, and flying close to the ground, are completely different concepts.

But at the same time, Wang Yan's strength was also rapidly depleting. Fortunately, there are "anti-gravity devices" that help counteract the gravity factor.

Suddenly.

An object quickly overtook him from a few hundred meters to Wang Yan's left, and in just a second, it disappeared from his sight. Wang Yan was shocked into a cold sweat, I'll strangle it, I didn't see what it was just now, this speed is too fast, right?

It seems that hitchhiking a satellite or space junk is a little harder than you think. You have to be careful, don't get crippled and killed.

...... (To be continued.) )