The Earth's surface atmosphere is a very interesting existence, which is not only necessary for life, but also provides good protection for life on the ground. Copy this address to browsehttp://%77%77%77%2e%62%69%71%69%2e%6d%65/

If there is no atmosphere, meteorites from space will be like super cannonballs, destroying everything on the ground, because of the protection of the atmosphere, most of the meteorites have been incinerated and disappeared before they hit the ground, and the resulting fine dust is just the direct sunlight scattered to a certain extent.

This scattering is very important for human vision, not only because it gives the sky a bright and beautiful azure color, but also because it softens and evens the light on the ground, so that people can get a balanced vision.

Otherwise, the ground scenery will be too strong in the strong direct sunlight, the contrast between light and dark will be too strong, it is difficult to form a clear vision, in addition to the dazzling sunlight and dazzling stars, the whole sky background will be dark day and night, neither the sky nor the beautiful scenery, as far as the eye can see, only black and white.

In addition, the ionosphere and ozone layer in the upper atmosphere have a good shielding effect on electromagnetic waves from space, which can avoid excessive electromagnetic waves from harming the health of people and animals.

It is worth noting that although the atmosphere can screen out most of the electromagnetic waves, but it allows the light to pass through, you must know that visible light is also a very narrow band in the broad electromagnetic spectrum, the essence of electromagnetic waves is no different from visible light, but the atmosphere is like a thick wall that is difficult to pass through for general electromagnetic waves, and only for visible light is like clear glass, the net is open, unimpeded.

This is known in geophysics as a visible window, and it is an amazing phenomenon.

Because without this peculiar window, the atmosphere would be completely isolated from all electromagnetic waves, and the ground would be a dark world, with no daylight, and all the phenomena of life would be wiped out.

But because of the existence of the atmosphere, it is not so easy for human beings to obtain some substances from the depths of the universe, although sometimes they can also get some meteorites from outside the sky, which may have some unknown extraterrestrial elements, but after all, the content is very small, and there is not much practical value.

Therefore, if you want to obtain some unknown elements from outside the sky, or study high-energy particles or something, it is a better choice in outer space.

Although the U.S. Air-Space Warfare X-37B only operates at a distance of 500 kilometers above the surface, it stays for a long time, and there are some unknown equipment, so the possibility of obtaining extraterrestrial elements naturally increases a lot.

At least Lin Xiao thinks that this metal pigeon egg is actually an unknown element they obtained in outer space, but it was a failure, and for some reason, this thing was actually lost after collecting it, and it happened to be touched by Lin Xiao.

"That is, if we are a little more daring, or we can think that on the American air and space warfare X-37B, there are not only collection equipment, but also automatically controlled experimental equipment, which can analyze and change unknown elements to a certain extent." After Lin Xiao's scrutiny, everyone's minds were suddenly opened, "The nano personality shown by this metal pigeon egg, as well as the appearance of semi-spiritual intelligence, are likely to be produced in this process." ”

"Air-space warfare...... The U.S. air and space warfare X-37B is really a relatively mysterious thing......" After listening to everyone's analysis, Han Ya couldn't help but think deeply.

"Don't we have any reliable information about the American air and space warfare X-37B?" Lin Xiao expressed great interest in this issue.

The metal pigeon egg found this time can be decomposed into a metal nanocloud after stimulation, and after a period of time, its memory characteristics can make it automatically return to the form of a metal pigeon egg, which has a great impact on the entire scientific community.

If someone can show this thing to the world now, I am afraid that not even any award in the world can recognize his great contribution to the entire scientific community.

After all, the emergence of this thing has changed people's perception in many fields.

Because of this, Lin Xiao was very interested in this air and space warfare project of the Americans, and he wanted to know more about this aspect and see if there was anything he could do to help?

"There's really no reliable information on this." At the mention of this, Han Ya couldn't help frowning, "Although the intelligence department once held a joint meeting to discuss the tracking of this project, what we can learn so far is basically superficial, and there is also the tracking and monitoring of this thing. However, despite all the resources we have invested, the information we can obtain is not much better than knowing nothing. ”

Naturally, there are some reasons for this, because the speed of this air-space battle is really a bit too fast, twenty times the speed of sound, and its volume is not large, and it is obviously not so easy to find and track such an air-space battle in the vast space.

What's even more outrageous is that this thing can still change tracks from time to time.

Once it changes, it means that your tracking of it may not be effective, because you don't know when it will change track, and you don't know where it will run.

Although the current satellite monitoring can even see the trademark marked on a cigarette butt on the ground, it is for fixed objects on the ground, and it is not easy to see high-speed moving objects in space.

In this case, do I have to go to the United States for this purpose? Lin Xiao thought of this question, and couldn't help but hesitate for a while.

To be honest, he is not very willing to go to the United States, although the reversal of day and night has no substantial impact on his ability, but he believes that some of the Americans' science and technology are indeed much more advanced than those of Huaxia, and they are also very widely used.

Even if he can use the ability of the Yuan Magnetic Excalibur to fight to a state close to stealth, who dares to say that among the surveillance methods of the Americans, there is no technology that can pierce his stealth state? It's really hard to talk about this situation.

Dealing with the power of one nation with the power of one person is not in itself a reaction that a normal person can make.

"You don't have to go to the United States to figure it out." At this time, one of Han Ya's senior subordinates spoke, and after he was silent for a while, he said to Han Ya and Lin Xiao, "It is naturally not easy for the Americans to monitor air and space warfare, for an all-weather flight battle, they must establish enough ground stations to monitor, so they should also have an observation post here in Huaxia." Therefore, as long as the existence of this observation post is found, it will be possible to obtain some useful information from their internal communications. ”

"Oh? It's an interesting idea. After hearing this, Lin Xiao nodded in appreciation, "In your opinion, where will they put this observation post?" ”

"Naturally, it's the consulate and embassy in China." The man replied without hesitation.

"In this case, MI2 should have relevant information, I'll find out." Han Ya nodded after hearing this, "The density of some information is too high, if you don't apply for it and get approval from the top level, it will be very difficult for other units to call it up." ”

"Then you ask, what we have to understand now is whether it is possible for the United States to operate the air and space warfare X-37B, and the rest is not so important." Lin Xiao said.

Their biggest problem now is to determine the connection between air and space warfare and this unknown element, and if this problem is understood, it will be very useful for future research directions on this thing.

After all, the Americans have put such a big guy on everyone's heads for nearly two years, and no one knows what it is loaded on, and it is also a secret about its real role.

As the head of the intelligence department, it would be the biggest dereliction of duty to say that he did not care about this matter.

Han Ya went for a long time, and it wasn't until eleven o'clock in the evening that she came back, and the materials she brought over this time were actually paper, a thick pile, which was about the same as using a pack of A4 printer paper.

"So much information?" After Lin Xiao saw it, he was a little surprised.

"yes." Han Ya put these materials on the table, and then said to him, "These things are top secret among top secrets, and the top requires that electronic devices cannot be used to transmit them, so they can only use paper media, and after reading them, they must be destroyed immediately." ”

This means that Han Ya herself is already the head of an intelligence department, otherwise, they would not have wanted to get this thing at all, and the metal nanocloud they obtained is also an important reason.

After all, this work is the responsibility of another department of the Second Department of the General Staff, and the level of top secrecy is still above that of the Special Service, at least for the time being.

Lin Xiao sat in the office of the base with Han Ya, and with these experts, he read all kinds of materials about the U.S. air and space warfare X-37B, trying to find the connection with the metal nanocloud.

Sure enough, Lin Xiao's guess is still relatively reliable.

After consulting the data and estimating the demonstration for more than two hours, a scientist finally found a change in the trajectory of the X-37B, at that time, there were indeed some special changes in this air-space battle, it should have turned on a special equipment, and kept this state for more than a year.

"Perhaps, this is the extraterrestrial elemental collector we guessed." Lin Xiao pointed to the faint difference shown on this data map and said to everyone.

It can be seen that after X-37B completed the collection work, there seems to be a little accident, and the extraterrestrial elements they have worked so hard to collect are gone.