The road to technology

Chapter 687 Unpredictable

Whether the two are related, Yue Yuanzhou does not know now, but he did not continue to launch sophons from a long distance.

Just now, he suddenly noticed the differences that often appear in different universes.That is warp speed navigation, just like this universe, the upper limit of warp speed becomes the speed of light again.

But others, such as the transition achieved by folding space-time, can be realized in every universe, and the difference in space-time is so great.

It’s okay to say that the Three-Body Universe was caused by the war, but this universe, and the current universe where the Shenzhou civilization is located is also the same.

Before he could figure it out, a reminder sounded, and a picture of the cosmic microwave background appeared on the projection screen.

It's the detection results.

Although the universe is vast, with the capabilities of the Shenzhou civilization today, it is still very fast to draw a map of the cosmic microwave background after detection. After all, light is there.

Yue Yuanzhou stopped, stretched his hands into the projection screen and made a few zooming movements, and then carefully examined the parameters in the picture.

The cosmic microwave background radiation is the electromagnetic radiation left over from the Big Bang. It is a kind of black body radiation, which is also called thermal radiation.

It is also the oldest light in the universe. The amount of this light in all directions is almost the same, but there are also subtle differences. The spectrum at different angles contains the same anisotropic difference or irregularity. Through these subtle residual changes, Yue Yuanzhou Then we can judge the anisotropic difference of the cosmic background.

These ancient rays radiated into the universe after photon decoupling when the universe was young.About 38 years after the Big Bang, when stars and planets had not yet formed, the universe was filled with dense and high-temperature white-hot hydrogen gas cloud plasma.

The plasma gradually cools as the universe expands. When the universe cools down to a certain temperature, which is about 3740 Kelvin, which is about 3466.85 degrees Celsius, protons and electrons combine to form neutral atoms. These first atoms in the universe no longer absorb thermal radiation , so the universe gradually becomes clearer.

This process is also called the reverse process of ionization. At this stage, because a large number of electrons are bound by the nucleus, the scattering rate of the initial photons in the universe decreases during the propagation process. At this time, the photons no longer interact with the previous large number of free electrons. So a large number of photons began to run wildly to all parts of the universe like a wild horse.

The information they carry allows the Shenzhou civilization to accurately measure the universe.

Now it has been measured in detail by the Shenzhou civilization, and then presented to Yue Yuanzhou.

"Oh, it's actually a millimeter wave, it's really a young universe!" Yue Yuanzhou muttered. In the cosmic microwave background radiation map in front of him, these microwave wavelengths have only been elongated to the millimeter level.

We must know that the wavelength of the microwave background radiation of our universe has reached the centimeter level, which means that the universe has not yet expanded to that stage.

Not only that, Yue Yuanzhou also saw the current temperature of the universe, which is 288.27845 Kelvin, plus or minus 0.00097 Kelvin.

This data shows that the space temperature in this space is 15.13 degrees Celsius, which is only 10 degrees Celsius lower than normal temperature.You must know that the normal space temperature of the universe is minus 273.15 degrees Celsius.

With just one temperature data, Yue Yuanzhou can read out a lot of information.

For example, the age of the universe, the distribution of dark matter in the universe, the distribution of various large-scale matter, and so on.

Of course, the most important thing is the meaning of this temperature.

"It's almost a constant universe, does it mean that a lot of life will be born in the universe at this stage?" Yue Yuanzhou first thought.

According to normal people's thinking, water is the source of life, but at 15.13 degrees Celsius, water is liquid.

Yue Yuanzhou touched his chin, and said to himself, "The Cambrian period of life in the universe?"

After pondering for a while, he connected to the Dragonscale communication and said, "Old Dragon, continue to detect, we need more data."

From here, Yue Yuanzhou can roughly judge the age of this universe, but he needs a more precise value.

"Come on, it has already started, but it will take a while. The detection of primordial gravitational waves is slightly more difficult than that of microwaves." Longlin replied.

Yue Yuanzhou nodded secretly when he heard the words, and then continued to analyze the data while waiting for the results of the original gravitational wave detection.

There are only two kinds of waves that can propagate on the cosmic scale, one is electromagnetic waves and the other is gravitational waves.

The cosmic microwave background radiation is the light of the big bang at the beginning of the universe, then the primordial gravitational wave is the gravitational wave produced at the beginning of the big bang of the universe.

Through the detection and analysis of these two waves, the past of the universe can be known.

Yue Yuanzhou temporarily left Sophon's loss to Gongsun Xing to deal with. Now he is more curious about the past of this universe, because after determining the temperature of the cosmic microwave background, he suddenly felt that there should be a connection.

Of course, the possibility of a great god-level civilization is not ruled out, but so far no civilization has come to the door, which may have explained the problem.

Taking advantage of the time to detect the original gravitational wave, Yue Yuanzhou intends to find the reason for Sophon's disappearance.

But as soon as he thought about it, he saw Gongsun Xing suddenly turn around from the workbench in front of her, and then said in a panic: "Leader, the ultra-distance quantum communication has failed!!!"

"what?"

Yue Yuanzhou suddenly turned his head, and looked at Gongsun Xing's beautiful face in disbelief, as if he wanted to see from her face whether he had said something wrong.

However, at this time, Gongsun Xing opened his thin lips lightly, and said between the opening and closing of the white teeth: "Just now after you stopped the second sophon transmission, we sent other deformable probes to nearby galaxies, but after these probes sailed for a while After a distance, we found that all the above-mentioned ultra-distance quantum entanglement communications were wrong."

"Fortunately, we plan to let the detector fly a certain distance, and then turn it into various instruments to help Director Longlin detect the original gravitational wave before jumping over. Otherwise, these deformation detectors will be like sophons, lost contact!"

The more Yue Yuanzhou heard it, the more frightened he became. He simply walked behind Gongsun Xing, looked at the projection on her workbench, and said in surprise, "That is to say, Sophon lost contact because of the failure of long-distance quantum communication!"

"Yes," Gongsun Xing turned around, pointed at the projection screen and said, "It has been confirmed that it actually expired before being sent out, but we didn't notice it because we didn't maintain communication at that moment. Not only Sophon , even all the long-distance quantum entanglement phenomena on the Jijian have become unpredictable."

"Fortunately, our sophon neutron microscopic detectors are all equipped with dual-channel communication. In addition to long-distance quantum entanglement, there is also microgravitational wave communication, so in fact, the sophon should not be lost. It's just waiting for us to connect here. The signal to it is estimated to be 81 years later."

The time-space transition uses coordinate positioning and then forcibly folds time-space transmission, so it has no effect, but it will take 81 years for the sophon who has traveled 81 light-years away to send back a message.

Yue Yuanzhou took a deep breath, he felt as if he had returned to before liberation.

(End of this chapter)