The Return of the Black Technology of Immortal World

In fact, sparrow is not appropriate to describe here, because in comparison, the shape of the two fighter jets is more like a slightly larger butterfly.

"Please do not get too close to Luna 2 to prevent the force field near Luna 2 from causing unnecessary damage to the aircraft."

The two fighter planes continued to circle, seemingly on purpose. The closest position to the spacecraft was already close to a hundred meters away.

Because it is flying in the air, although the visible light stealth system of Luna 2 is turned off, the outer layer of protection is always turned on, because no one knows if someone will have a seizure and give them a missile.

But now there is no need to glide in the air, so the shape of the protective cover no longer has the shape of a wing, and has become closer to the hull of the spacecraft.

However, there is still a buffer distance, about fifty meters. You must know that this is a protective shield that can withstand the impact of micrometeors and meteorites. With the mass of more than ten tons of ordinary fighter jets and the speed of subsonic maneuvers, it is simply difficult to deal with it. The protective shield has no impact, let alone the spacecraft dozens of meters away.

Her reminder was purely because she did not want the cooperation between China and China to be affected if the two planes were too close and a crash occurred.

At an altitude of 20,000 meters, even if you eject and parachute immediately, the chance of survival is almost zero, let alone a greater possibility. If the plane hits the protective cover, it is no different from hitting a mountain, and it will directly smash into pieces. No chance to skydive at all.

Following Xiao Ai's reminder, the two fighter planes no longer flew around each other. They quickly straightened their bodies and flew downwards.

It's not that the two planes don't know how to pilot and fly, but that Luna 2 is almost exactly the same from front to back. It's impossible to tell which side is the head and which side is the tail. It can only fly downward first and fly at the slowest speed. Speed, lead from the front.

At this time, Luna 2 also started up, but its huge body seemed to be completely separated from the gravity of the Blue Star. It fell so slowly, like a tractor, towards the predetermined location.

In fact, in the aviation field, flying fast is not easy, but it is definitely not as difficult as flying slow.

Although at the beginning of the birth of the aircraft, with the lift of multiple wings, the flight speed of the aircraft could be reduced to more than 100 kilometers.

But at that time, it was a propeller aircraft, and its top speed would not exceed 200 kilometers.

Nowadays, the world has almost become dominated by jet aircraft, especially fighter jets. In order to achieve high-altitude and high-speed performance, the sweep of the wings exceeds 45 degrees. The flying speed will never be less than 500 kilometers. If it is lower, it will fall. .

There is probably only the retired American Panda fighter in the world. Because of its variable swept wings, it can turn itself into a straight-wing aircraft, capable of cruising in the sky at a speed of 100 kilometers.

"Eighty kilometers per hour, is this an aircraft? Even a tractor is faster than it!"

The staff on duty at Jiucheng Airport, without the auxiliary system of radar, had to rely on primitive telescopes to observe the trajectory of Luna 2 bit by bit, and finally calculated its moving speed.

With everyone from the wine city to the capital watching anxiously, Luna 2 slowly landed at the airport, giving it a place prepared.

After falling down, you can see how huge it is. The height is actually not very high, only about ten meters, which is much higher than those large aircraft, but the width is more than 25 meters, and the length is about 100 meters. .

As it fell, several armored vehicles with warning lights on, including fire trucks, had surrounded the place, and the warning tape with reflective film was stretched for several hundred meters.

This is also what it should be. After all, it is something that has come back from outer space. Although the items that enter the Blue Star through normal routes are basically detoxified by the heat generated by air friction, there should be no viruses. Something like this can withstand temperatures of thousands of degrees.

However, Luna 2 is different, because the way it lands is different from ordinary spacecrafts and meteorites. Its speed is far from the level of violent friction with the air.

There is also a protective cover outside. Although the protective cover is invisible most of the time, after entering the atmosphere, it will form wings like a space shuttle and can glide in the air, which can be regarded as greatly reducing friction.

Of course, the shell of Luna 2 and most of its structures were actually built in the vacuum environment of the moon. So far, no microorganisms or viruses have been found that can survive in the moon for a long time. Survive in a vacuum environment.

Yang Qing's research on lunar soil also proved that although there are some organic macromolecules in the lunar soil, there are absolutely no signs of life. Even the legendary tardigrades that can survive anywhere are nowhere to be seen. .

However, just in case, especially Luna 2, it mainly travels between Blue Star and the moon. The situation on Blue Star is extremely complicated. There are various microorganisms in the soil and air, which will inevitably contaminate the moon. The cabin and shell of Shenzhou 2.

Fortunately, the air and moisture inside the cabin are circulated, and during the circulation process, the disinfection process can be completed.

There are not many ways to disinfect the outer shell, unless it is washed with liquid like a car wash.

However, Luna 2 is still too big. The liquid consumed for cleaning, even water, is an unbearable pain for this small northwest town.

Moreover, Yang Qing looked down on this backward method of using liquid for cleaning.

The titanium alloy sandwich panel on the surface of Luna 2 has a metal airgel in the middle that plays a supporting role and has thermal insulation capabilities. Its thermal conductivity is extremely low, second only to vacuum.

The outer sandblasting coating is not only extremely smooth, but also has almost no wettability. Neither water nor organic solutions can wet it.

Of course, except for mercury, its infiltration ability is completely a bug for metallic substances.

But here, even mercury cannot exert its incredible amalgam binding ability. Otherwise, if a spacecraft is afraid of a drop of mercury, it will become a joke like a Hollywood blockbuster.

The coating on the shell has extremely strong bactericidal ability, and no microorganisms can survive on it for more than one minute.

In the human world, generally speaking, relatively harmful diseases are caused by viruses, but in fact, the survivability of microorganisms and bacteria is much stronger than viruses.

Microorganisms can survive independently, and the DNA of their offspring can remain basically the same, making them less prone to mutations.

Viruses not only need a host to survive, but the DNA or RNA in the body often mutates. Even the original virus, after mutating for dozens of generations, has completely lost its organizational characteristics.

But even though Xiaoai had communicated the situation of Luna 2 to them, they still chose their own way of handling it.