The evolution of the earth is mainly divided into five periods, Archean, Proterozoic, Paleozoic, Mesozoic and Cenozoic. Each period www.biquge.info hundreds of millions of years or even longer.

Noah's stimulation of the Earth's core almost destroyed the 4.6 billion years of Earth's evolution, causing it to fall back to the intermediate period between the Archean and Proterozoic periods. Although the current state of the earth is not as primitive as that of the Archean, there is no sign of the presence of primitive microorganisms such as algae in the Proterozoic.

If the earth is allowed to evolve on its own, it will evolve again for more than 4 billion years, and at that time, Noah didn't even know if he still existed, and even the estimated age of the entire galaxy was only 13.6 billion years, and the life that could have a lifespan of more than 4 billion years, not to mention the galactic life record, the cosmic record must not have run.

The volatile gases formed during volcanic eruptions gradually replace the primary atmosphere and become secondary atmosphere. The main components of the secondary atmosphere are carbon dioxide, methane, nitrogen, hydrogen sulfide and ammonia, which are some gases with heavy molecular weights. These gases and the earth's solid matter are attracted to each other and interdependent. The gas was not abandoned by the great centrifugal force of the Earth, and became the second life of the atmosphere.

Repairing the atmosphere that had been ravaged by gamma-ray bursts and countless stellar winds and planetary engines was the only way Noah came up with it.

Countless spacecraft scatter condensed dry ice all over the atmosphere, in the same way as artificial rainfall, condensing water vapor and large amounts of volatile gases in the atmosphere, causing them to fall to the ground or form ice crystals that will not be thrown out of the Earth's atmosphere.

The geocentric energy has stopped coming in, but geological changes will be very frequent for a long time to come, and they will stabilize when new plates and continental formations are formed.

After the secondary atmosphere is fully formed, Noah will build a large-scale ozone generator in the atmosphere, establish the most important part of the living atmosphere, the ozone layer, and then gradually adjust the proportion of each compound in the atmosphere until it is close to the atmosphere when the earth's ancient life was formed.

Most of the oxygen content in the atmosphere of the earth in ancient times came from the photosynthesis of primitive algae, and the star Gliese 581 was younger and more stable than the sun, and now because the earth's orbit and self-axis angle are very perfect, the light received from the sun (Gliese 581) is just right, if Noah had let the ozone layer appear before the primitive algae in advance, it might have evolved an environment that could allow multicellular organisms to live before the primitive life was born, and the evolution process of life on the earth would have been changed.

But it doesn't matter, anyway, the last thing to flourish on the earth will still be the creatures that Noah put on the surface in the future.

With Noah's help, the evolution of the earth will undoubtedly be much faster, but this acceleration is only relative to the original billions of years of evolution, which will still take a long time.

Maybe in the future, Noah's technology will usher in a breakthrough, and the speed of the earth's evolution can be accelerated a lot, but at least for now, the earth will not be able to return to its original state in a short period of time.

However, Noah is not in a hurry, after all, in the boundless sea of stars, there is no shortage of time, she is still quite interested in observing the evolution process of life on the surface up close, and is also looking forward to whether it can evolve a new life that was not originally on the earth.

The Cambrian explosion of life is known as a major unsolved case in paleontology and geology, and is called the beginning of the Cambrian period in geology, and the vast majority of invertebrate phyla appeared in this period of more than 20 million years.

This phenomenon, which suddenly appeared in the Cambrian strata at about the same time and suddenly appeared in the Cambrian strata for more than 20 million years (arthropods, molluscs, brachiopods, annelids, etc.), while animal fossils could not be found in the more ancient strata before the Cambrian for a long time, is called the "Cambrian explosion of life" by paleontologists, or "Cambrian explosion" for short. It was also the beginning of the Phanerozoic.

The Cambrian outbreak undoubtedly refuted Darwin's theory of evolution, and Darwin himself was puzzled by it, and mentioned the Cambrian period in his book "On the Origin of Species", which he thought would be strong evidence to refute the theory of evolution.

In the countless years of human search, many ideas have been put forward to explain the Cambrian explosion, but they have been denied one by one, until they are extinct, and they have not been able to find a real basis to explain the Cambrian explosion, which has forever become an unsolved case in the history of human civilization.

If you can answer it yourself, it can be regarded as a human being, but it is a wish. That's what Noah thought.

The process of earth transformation has been going on, and Noah's scientific research work will never stop, the accumulation of data is going on all the time, the construction of the ringstar supergiant particle collider consumes a lot of resources from Noah, so Noah must get enough returns from above, the discovery of gravitons is only a very small aspect, there are many revelations that can be obtained from particle collision experiments, Noah needs to make full use of them, if he encounters a technological barrier in the future, This raw data will then become the cornerstone of breaking through the barriers.

In the particle collision experiment, when the energy level of the collider particles reaches a certain level, the mass-energy conversion process can occur, and new positive matter and antimatter will be born at the same time, and the total amount of the birth of these two substances must be equal, and the antimatter will be annihilated with the matter in the particle collider at the moment after birth, so it cannot be preserved.

In the history of previous civilizations, antimatter preservation methods have also been studied, usually by creating a vacuum environment where there is no positive matter, and preserving it through magnetic field constraints, but things like antiprotons, even if they do not undergo an annihilation reaction, will quickly decay on their own, and it is technically and theoretically difficult to achieve long-term preservation.

The reason why human beings are eager for antimatter technology is because after the annihilation reaction of antimatter and positive matter of equal mass, the mass will be completely reduced to zero, and all mass will be completely converted into energy through Einstein's mass-energy conservation equation (E=mc^2), which is 100% utilization of material energy.

In other words, when you have antimatter, you can create energy when you blow on it.

No matter how much fusion nuclear fusion is, it can't completely convert matter into energy, and after fusion to iron, the technology and rewards required for fusion begin to be disproportionate, even a huge natural nuclear fusion reactor like the sun can't provide enough conditions to fuse to iron, how much technology and energy does a nuclear fusion engine need to pay to achieve such conditions?

At present, Noah only pushes the end point of heavy element fusion to calcium, and has no idea of further advancement, because the pay is not proportional to the return, and it is not necessary, the fusion of calcium to iron only adds one fusion process and gets one more exergation process.

But what about later? When it is necessary to achieve interstellar travel of thousands or even tens of thousands of light years, Noah doubts whether heavy element fusion can provide Noah with enough energy output to support faster-than-light flight over galactic distances.

And antimatter as energy is only one aspect, it is also very strategic as a weapon, because antimatter can react with any positive matter, so any armor, any shield, in front of the antimatter cannon is useless, no matter how you optimize material technology, as long as your material is composed of any element on the periodic table, you can't escape the annihilation reaction with antimatter, even if you move a neutron star, as long as the antimatter mass is enough, it will still be blasted into slag for you.

It's just a pity that Noah has not been able to find a way to produce antimatter in large quantities and preserve it, let alone develop it into energy and weapons, in Noah's estimation, if antimatter can be actually used, then the energy utilization rate of civilization will definitely step on a springboard, jumping directly to the realm of Type II civilization.

However, the current Noah is far from reaching that springboard.

Theoretical breakthroughs cannot go up, and technological development takes time, which is the current situation of Noah, a period of steady but slow development before encountering technological barriers and technological breakthroughs.

Noah hoped for something to break the status quo, and she put her expectations on the Sidneys, perhaps the wisdom of billions of intelligent beings could bring her some enlightenment, but there was something sudden that broke Noah's stable status quo.

It was when Noah was conducting a graviton transfer equilibrium measurement experiment, and the graviton that had been stably transmitted before countless experiments had undergone some strange changes.

The transfer of gravitons between two particles no longer follows a regular path of magnetic inductance, but is affected by some external force and periodically shifts in a certain direction.

Noah was intrigued by this and thought it was a newly discovered gravitational transport property, but as further research began to show that this effect was time-limited, and after a certain period of time, the graviton shift effect disappeared.

Noah wondered if the laws of physics would change over time. One feature in one time period and another in another? Noah took this very seriously, and if the laws of physics were unevenly distributed in space-time, then physics would almost have to be reversed.

In order to explore this phenomenon, Noah conducted experiments at various locations in the Gliese 581 galaxy, and the girl found that this is a periodic phenomenon every hour for 3 seconds, accurate to the microsecond, and when this time period is reached, the graviton transfer experiments at various locations in the galaxy will be affected.

Noah recorded the intensity and frequency of each graviton shift, and found that the data was very similar each time.

And the offset frequency of this graviton is extremely familiar to Noah, with a total of nine cycles, the first three and the last three cycles are shorter, and the middle three cycles are longer.

A possibility appeared in Noah's thoughts, but it turned into a bolt from the blue, making the girl sluggish, and the load rate of the central computer suddenly increased by 20 percentage points.

In the past earth civilization, there was a global way of communication, a signal code that was open and interrupted, and expressed different English letters, numbers and punctuation marks through different sequences......

This is Morse code, the three short periods before and after are ".", and the middle three long periods are "―".

【...―――...】

In Morse code, this represents a globally accepted symbol.

International distress signal - [S.O.S]

Someone, using the communication method unique to the previous earth civilization, asked Noah for help......