The method of using this alien creation is very simple. As long as you enter different parameters, different screen results will pop up. Interesting, very interesting... Yu Yifeng kept experimenting, just like playing with a new toy.
Various pictures are full of alternative astronomical beauty, because the object of observation is gravitational waves, which look like ripple-like radiation sources.
In fact, human beings are in such a superposition of gravitational waves. They are invisible and intangible, but they really exist. Gravity is the weakest of the four basic forces. The only universal gravitational force between two protons is them.
1/(1.235*10^36) of the electromagnetic force between them, which is almost negligible.
But on a macroscopic scale, gravity becomes the only force that controls the motion of celestial bodies.
The most powerful gravity is far stronger than the strong interaction. Not even light can escape, and even neutron stars will be torn apart!
It has to be said that this is a miracle of accumulating small amounts into large amounts, from the smallest to the largest, from the weakest to the strongest. Gravity can be said to be a typical example of the struggle of diaosi to reach the peak of life.
Even people like Xu Yunjin who don't understand science are immersed in the beautiful pictures.
Yu Yifeng discovered that this telescope can even clearly "see" things hundreds of millions of light-years away, and can also roughly estimate the mass, size and distance of objects from the screen.
However, because gravitational waves are too weak, this machine still has its limits. The farther the distance, the higher the computational requirements on the computer and the quality of the objects being observed.
After a simple test, only massive sources such as stars, neutron stars, and black holes can be observed for things hundreds of millions of light-years away, and nothing can be done about other smaller planets.
The closer the distance, the higher the accuracy of measurement. You can even "see" small meteorites and comets within one light-year!
However, this telescope still has a big flaw. Compared with radio telescopes, it cannot see the specific picture clearly. It can only use corrugated dots instead. In other words, it can only observe the position of the target.
and exercise status.
Well... no matter what, it is countless times clearer than human telescopes. At least human telescopes cannot "see" anything blocked by the planet...
"The green light civilization's spacecraft is very large, its mass should be large, and it is relatively close to us... it should be clearly visible." Professor Thomson listed a series of data on the screen and said cautiously.
Yu Yifeng nodded: "Then let's try it. What is the mass of Sedna?"
Now it’s time to get down to business. They spent so much effort just to monitor the Green Light Civilization spacecraft.
This is the most important thing. If you can't see each other's spaceship, people won't have any sense of security.
"The mass level of Sedna should be around 10^20 kilograms. As for the Green Light Civilization's spacecraft, the mass cannot be accurately estimated because the specific materials and related structures are not known..."
Professor Thomson pondered for a moment and wrote a line of data on the paper: "Its diameter is 150 kilometers. For the time being, it is believed that... its overall density is slightly lighter than water, and its mass level is about 10^14-10^16 kilograms.
It shouldn’t be as light as Noah anyway.”
The object to be observed by this telescope must start at least tens of billions of tons, that is, 10^11 kilograms. A spacecraft like Noah, which is huge and only has a mass of several million tons, is too small and will definitely not be able to observe it.
of.
According to Professor Thomson, Yu Yifeng entered the relevant parameters and hit the Enter key. This time, there were thousands of celestial bodies that appeared!
These include a bunch of meteorites after the earth exploded and the moon was torn apart... Well, the solar system does have so many small celestial bodies with masses distributed between 10^14-10^20 kilograms.
It took everyone a minute to easily find the source of gravity represented by the Sedna star, and then...
No more! No more of that spaceship!
"what happened?"
Just for an instant, Yu Yifeng felt a chill on his back. He suddenly thought of something not very good. Was the spaceship hidden on purpose? Or... had it left Sedna?
Failed! The gravitational wave telescope they had high hopes for actually failed! Xu Yunjin and others also clenched their fists tightly, with cold sweat breaking out on their foreheads. What does the disappearance of the alien spacecraft... mean?
Just a few days ago, people could no longer see the spacecraft through infrared light, which means that the alien spacecraft has been repaired. If it is deliberately hidden, humans will lose its vision and can only see it when it is very close.
arrive!
"Are you sure this is Sedna?" Yu Yifeng asked in disbelief.
"Yes... this is indeed the star Sedna, it should be it!" Several people confirmed it several times. It was impossible for them to get it wrong with this common sense in astronomy.
"But what about the spaceship? Where's the alien spacecraft!"
Xu Yunjin had already shouted out urgently, but he didn't see the other smaller circle.
Yes, logically, there should be a smaller source of gravity, which is the huge alien spacecraft!
Where did it go?!
Everyone searched the image several times, but they did not see a suitable small circle near Sedna. And on the image, there were hundreds of small gravity sources, and it was impossible to tell which one was an alien spacecraft and which ones.
It's a meteorite.
A chill rose from the bottom of his heart, and Yu Yifeng's hair almost stood up in fear, and he even wanted to issue an emergency order!
"...Maybe it's a problem with the search range?" Professor Thomson also looked incredulous, with beads of sweat appearing on his forehead.
"Could it be that...their distance is too close and the gravitational forces overlap? This is possible..."
Everyone spent another hour and began targeted investigations to eliminate the small sources of gravity one by one. Indeed... no suspicious traces were found!
"They are all meteorites, not alien spacecraft. Maybe it's just that the gravity of the two overlapped, and the alien spacecraft is still on Sedna."
After checking these, many members of the Public Security Department breathed a sigh of relief. This may be Yi's explanation, but it does not make everyone completely reassured. After so long efforts, there is still no alien spacecraft observed, which makes everyone feel...
Somewhat helpless.
Professor Thomson added: "The propagation speed of gravitational waves is also the speed of light, which means that what we see is almost 12 hours ago. If it leaves Sedna, we will definitely be able to observe a small circle... Yes
Yes, that must be the case."
Yu Yifeng frowned, there was nothing we could do about it. In the vast universe, information lag is inevitable. In fact, as long as humans don't see it flying towards Mars...
The situation was not yet at its worst. He felt relieved and patted Xu Yunjin on the shoulder: "Old Xu, I'll leave this place to you. Be sure to monitor it 24 hours a day and let me know if anything happens."
At the same time, he turned around and said: "Professor Thomson, you will be responsible for the maintenance of this telescope. Is that okay?"
Xu Yunjin immediately saluted and replied solemnly. But Professor Thomson seemed to be stunned, looking straight at the observation image, and said in a stiff voice: "There is something wrong!"
Hearing what he said, Yu Yifeng and Xu Yunjin immediately became nervous, "What's wrong?"
Professor Thomson seemed to be stunned, and kept calculating for a long time, and finally said slowly: "I just adjusted the parameters and expanded the search range... Look!"
Everyone looked up in confusion and saw...a small ball appeared near Sedna Star, tightly next to it. However, its gravitational strength was more than ten times that of Sedna Star!
Professor Thomson said blankly: "This is... the Green Light Civilization spacecraft? Is the opponent's mass too large? Is it bigger than the star Cedna?!"
"The mass reaches 10^21 kilograms! This... is impossible!"
Professor Thomson was sweating on his face as he seemed to be saying to himself: "I mean, the mass of this spacecraft is ten times greater than that of the star Pedna?! This is absolutely impossible!"