Chapter 1543 Supercooling Phenomenon

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Chapter 1543 Supercooling Phenomenon

After hearing what his son said, Zhao Zhongyao said again,'This problem may be like this. Because this golden meteorite is an alloy body with high hardness and density composed of iron, nickel, copper, gold and other metals. This alloy body may also have a high melting point. '

When Zhao Zhongyao said this, he glanced at the sky outside the spaceship, and then said, 'It may be because this golden meteorite has a high melting point. Therefore, after it flew to the moon and rubbed against the very thin atmosphere that hardly exists on the moon, it did not generate a temperature sufficient for it to burn. So, the appearance of this golden meteorite is still good. Another thing is also very magical. I was thinking that the place where this meteorite hit may be a relatively soft place. So, after the golden meteorite hit this piece, it didn't explode, but just embedded under the surface.

The reason why this surface is very soft may also be because this place is located within the entire Aitken Basin. The entire Aitken Basin was originally a huge impact crater. After the formation of this huge basin, the soil on the entire surface was in a relatively soft state.

Therefore, when the core material of the Drow Venus crashed into the Aite surface basin, there was no explosion. Just embedded in the surface.

To say that this is already a very miraculous thing. But I feel that there is something even more magical about the consequences. It was after the core material of this Drow Venus hit the huge Aitken Basin at the South Pole of the Moon. Not long after, another comet's remnant icy material also hit near the moon's south pole, and it hit the core material of this Drow Venus.

As a result, the debris of this comet instantly evaporated into an ice fog. After all, after the comet hit the golden meteorite, it also produced a very high temperature. The whole block of ice material is vaporized.

It’s just that these vaporized ice fog will form a kind of’plasma’ ice gas at the very low temperature on the moon’s surface. This state can keep the ice and gas in a very stable state. If there is no external force to disturb it, it can always be in this state.

Especially the poles, which are the coldest places on the moon. In such a place, it is most likely to form the phenomenon of "plasma" ice fog.

In fact, we can do this kind of experiment at home. For example, we can take a glass of very pure water and put it in the refrigerator to freeze it quickly. When we open the refrigerator and take out this glass of water after a while, we will see that this glass of water has not frozen, but is still liquid.

This is because when these very pure water encounters low temperature, the water molecules that were originally relatively active inside are quickly frozen by the low temperature people in the refrigerator. In this way, these water molecules are frozen by the low temperature before they have time to freeze. In this way, this glass of water can maintain a liquid state in the refrigerator.

But when we took this glass of water out of the refrigerator, the temperature outside suddenly rose. But these water molecules are still in a 'sleep' state. They didn't freeze right away.

If we don't shake the cup, these water molecules are always in 'sleep'. The water in the cup can always be in a liquid state. But when we shake the cup, these water molecules in 'sleep' will suddenly wake up. Then it freezes right away. After all, when it was just taken out, the water temperature in the cup was still very low.

Now we use this phenomenon to explain the phenomenon of white mist we encountered just now, which is perfect. 'Zhao Zhongyao looked at Feifei and said.

Feifei also felt that it was very reasonable after hearing what his father said. Because what they encountered just now can only be explained by the phenomenon that such pure water does not freeze in the refrigerator.

It's just that Feifei still doesn't quite understand what is going on with the phenomenon that pure water can not freeze in the refrigerator. So I looked at my dad again and asked, 'Dad, what is going on with this phenomenon that pure water does not freeze in the refrigerator, can you tell me in detail again. '

At this time, Zhao Zhongyao looked at Feifei again and said, this phenomenon is called the supercooling phenomenon of pure water. There is a reason for this phenomenon, let me explain it to you now! '

At this time, Zhao Zhongyao looked at Feifei again and said, "In chemistry, water has a strange phenomenon called supercooling and superheating." A glass of pure water is cooled quickly without any vibration, and a strange phenomenon will appear: the temperature of the water has dropped below zero degrees Celsius, but it does not freeze. Someone once managed to supercool water to minus 72 degrees.

Of course, supercooled water is extremely unstable. As long as you put a crystal of ice, a grain of sand in it, and sometimes even touch the cup lightly, the supercooled water will suddenly "wake up" and form a solid state at once. chunks of ice. Why does water produce supercooling phenomenon? It is known from scientific experiments that liquid water molecules are strung together in disorder, while water molecules in ice cubes are arranged in a strict "formation".

When water is about to form ice, it must first have some tiny ice crystals as "cores", so that water molecules can easily arrange around these cores, making the "teams" continue to grow and form ice cubes. In ordinary water, because it contains many extremely small suspended solids or the cooling process is slow, tiny ice crystals are easy to form at this time, so freezing is not difficult.

However, when the extremely pure water is cooled quickly, the crystal nuclei of ice are not easy to form. Therefore, although the temperature has been cooled below zero, the water molecules at this time are still like a "rabble", always being discharged due to the lack of a "core". Without a "formation", there will be a wonderful supercooling phenomenon. If in super cold

If a small ice crystal is thrown into the water, it will freeze immediately like an army gathering in an emergency to form a "formation".

This phenomenon is not a typical supercooling phenomenon. Although the reason is easy to understand. In practice, it is quite difficult. Because the water you want to experiment with and the container holding it must be very pure. Such an experiment is only possible if very pure water is placed in a very pure container. If the water is not pure enough, or if the container is not pure enough, then such an experiment will not be easy to complete.

But in the impact crater of the moon, we actually encountered this supercooling phenomenon of pure water, which is really amazing. '

After listening to his father's words, Feifei felt very amazing about what his father said. What they have experienced before can be said to be things that are rarely encountered.

'Dad, you are very kind. From what you've said, I'm well aware of this supercooling phenomenon. It's just that I still don't get it. What happened to the icy material of that comet. Could it be that these ice substances are the same as the ice substances on our earth! The oceans on our planet were formed by the icy material of comets hitting the earth in the early days of the earth. Also, is the life on our earth related to comets? ’ From the special phenomenon of these ice substances, Feifei thought about comets and life on Earth.

After hearing what his son said, Zhao Zhongyao thought for a while and said, 'Okay, Mom, if you want to know more about this, then I'll tell you some more stories about comets and life on earth! '

‘As for the origin of life, the current scientific community does not have a unified conclusion, but it is generally believed that the origin of life on earth comes from outer space, and comets are considered to be the protagonists who brought life to the earth.

The reason why comets are called comets should be related to intelligent life on earth. Comets should be magical stars containing the seeds of intelligent life.

Through the chemical analysis of comet dust brought back by space probes, scientists have found that the particles contain the organic compound glycine, and we know that this glycine is actually one of the main materials that make up life proteins. The discovery of organic compounds in comets has played a great supporting role in the scientific community's argument that life on earth comes from comets.

However, this also shows that organic compounds are easy to form, but this does not mean that life has survived on comets, but at least it shows that the basic materials of life have been formed on comets. Comets are actually ice masses containing a large number of ice cubes, and they orbit in large numbers in the Oort cloud at the edge of the solar system.

Perhaps it is because they are considered to be thrown to the edge of the solar system in the early days of the solar system and a large amount of "sealed" substances are considered, so they seem to be able to retain some information about the origin of life, and even the origin of the solar system. It is said that comets are celestial ice masses in the solar system that are not "warmed" by the heat of the sun, but in fact this ice mass of comets is not eternal.

In fact, some comets do not orbit the sun forever, and most of them will volatilize after flying for thousands of years, leaving only tiny dust particles. Even some giant comets such as Halley's Comet generally have a lifespan of only a few hundred thousand years.

We know that when a comet enters the interior of the solar system, due to temperature changes, the comet will emit coma and form a long tail, that is to say, it will lose several tons of ice or other substances every second. In the end, only a small amount of ice cubes can remain, and finally the Huifa and Huitail cannot be formed.

When the comet finally has no more ice to shed, it will act like an asteroid or even break up into many small bodies due to the loss of ice gel and force. Not only because comets are mainly composed of ice blocks, their lifespan is shorter than that of other stars. Some comets break into the inner solar system due to the gravitational influence of other stars, which is also a major reason for their disappearance.

In fact, comets fly into the interior of the solar system and often bump into them randomly, and many craters on the surface of the planets are made by them. The impact of a comet 4 billion years ago is generally believed by scientists to be the gift of the origin of life brought by the comet to the earth. It is the God who created life, but it can also be said to be the super killer that destroys life.

According to statistics, they may have a major blow to the earth every 40 million years, and a large-scale "sweep" of life on the earth. According to scientists' estimates, the dinosaur extinction event that occurred in the Bailong Tertiary period 65 million years ago, which is the most famous extinction event in the history of the earth, is likely to be caused by a comet hitting the earth.

In fact, the scary thing about a comet is that it can explode in the air without directly hitting the ground, just like it can explode directly in the air. The temperature and energy generated by its explosion are like a hot whirlwind that pushes straight down. , and then cause a larger area of ​​casualties to the creatures on the ground. To say that the god closest to us is probably the comet.

Many lives on the earth may have been brought by it, but many have been taken away by it. We must pay attention to these intelligent stars wandering in space, they may contain the seeds of the origin of life on earth. Even the seeds of the origin of the solar system. When we study comets, we will definitely gain a lot. It will definitely allow us to finally unravel the mystery of the origin of life on Earth and the origin of the entire solar system. 'Zhao Zhongyao told Feifei some stories about how life on earth was born.

After hearing what his father said, Feifei became more curious about things like comets. He was wondering if there might be some whole cometary material on this moon.

So, Feifei said again, 'Dad, listen to what you said, we can be sure that the fire of life on the earth must be ignited by comet matter. '

At this time, Zhao Zhongyao

And he said, 'Of course it is possible. However, this is just speculation by scientists, and there is no sufficient evidence for whether this is the case. In a word, the question about the origin of life on earth is a very complicated question. Not so easy to solve. '

'Dad, we've now seen the South Pole of the Moon. Should we go to the north pole of the moon to see. It is also not known what the north pole of the moon looks like. ’ Regarding the topic of comets and life, Feifei didn’t want to discuss any more. After all, this is something that even scientists have not yet concluded, and ordinary people have no way of knowing how life on earth originated.

After hearing Feifei's words, Zhao Zhongyao said again,'You are right. The topic of comets and life on earth is a topic that can never be finished. We need not dwell on the subject now. We still have work to do! '

'Dad, then should we go to the North Pole of the moon to see it? Nor do we know what the north pole of the moon looks like. ’ Feifei looked at Dad again and said.

'Okay, let's go to the North Pole of the Moon and have a look. I also don't know what the North Pole of the Moon looks like, though. Just know some superficial knowledge about the north pole of the moon. Zhao Zhongyao said again.

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