Chapter 1534: Starlight and Moonlight

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Chapter 1534

Feifei looked at the crater in front of him, and felt that it was not much different from the Kepler crater he saw before, so he also felt that this crater is not very attractive, isn't it just an ordinary crater? !

‘Dad, there’s nothing to see about this crater, isn’t it just an ordinary crater! At this moment, Feifei looked at Zhao Zhongyao again and said.

After hearing Feifei's words, Zhao Zhongyao said again, "Feifei, don't think this crater is similar to Kepler crater." But this crater is indeed very different from the Kepler crater. '

‘Oh, what’s the difference, aren’t they all craters! ’ After hearing what Dad said, Feifei said very puzzled.

'First of all, the timing of their formation is very different. Kepler Crater, probably formed hundreds of millions of years ago. The Tycho crater may have a history of tens of millions of years. On the moon, any crater may be the product of hundreds of millions, or even billions of years.

But Tycho Crater is different, it is a very young crater. From this point of view, there is a big difference between Tycho Crater and Kepler Crater. 'Zhao Zhongyao looked at Feifei again and said.

Upon hearing this, Feifei asked in puzzlement, 'Father, so this Tycho crater is much younger than the Cape Pellet crater. So what are the characteristics of this young crater? '

After hearing what his son said, Zhao Zhongyao said again, "The young Tycho crater this year is likely to be related to the extinction of dinosaurs on our earth 65 million years ago." '

'What! It has something to do with the dinosaur extinction event! When Feifei heard Zhao Zhongyao say this, he felt very strange. After all, he never imagined that this crater could have anything to do with the extinction of dinosaurs on Earth.

‘That’s right, it’s related to the extinction of dinosaurs on Earth. 'Zhao Zhongyao looked at Feifei and said.

'Dad, tell me quickly, I really want to know what's going on. ’ Feifei looked at Dad very curiously and said.

'Okay, then I will tell you a story about this Tycho crater. 'Zhao Zhongyao looked at Feifei again and said.

Tiantian and Qu Yuqian listened to the conversation between Zhao Zhongyao and Feifei. The two of them were also very curious, so they sat around Zhao Zhongyao together, wanting to hear Zhao Zhongyao tell a story about this Tycho crater.

'Sixty-five million years ago, in the asteroid belt between Mars and Jupiter, there was a relatively large asteroid. Maybe a hundred and forty kilometers in diameter. However, this huge asteroid collided with another relatively large asteroid for unknown reasons during its operation.

This asteroid with a diameter of 140 kilometers was smashed apart by another asteroid. This asteroid split into many asteroids. Among them, the two asteroids that hit the moon and the earth were split from this asteroid with a diameter of 140 kilometers.

In fact, the asteroid that hit the earth was the asteroid that created the famous dinosaur extinction event, and it was the culprit that caused the extinction of the dinosaurs on the earth. At that time, after the asteroid with a diameter of ten kilometers hit the earth, the energy generated was unimaginable.

According to the calculations of relevant scientists, the energy generated by the asteroid that hit the earth at that time was almost equivalent to one hundred trillion tons of TNT equivalent. And the explosive equivalent of the most powerful hydrogen bomb ever produced by mankind is only 50 million tons of TNT equivalent. In contrast, the energy produced by human-made hydrogen bombs is not worth mentioning at all.

The crater formed by the impact of this asteroid at that time still exists today. This crater is the famous Chicxulub Crater.

The Chicxulub crater is a crater impact relic found in Yucatan, Mexico or the Yucatan Peninsula. It was once the largest crater on the earth (the largest crater is currently found to be in the thick ice of millions of years The largest impact crater ever found beneath the bed: Wilkes Land, a 483-kilometer-wide crater that is 250 million years old.); Chicxulub is a village above it. The surface of the crater body is not visible. It is speculated that the overall crater is slightly oval in shape, with an average diameter of about 180 kilometers; the meteorite that caused the crater is estimated to have a diameter of about 10 kilometers. More than 90 trillion tons of TNT explosives are enough to cause tsunamis, earthquakes and volcanic eruptions, and make a large amount of dust enter the atmosphere, completely cover the sun, change the global climate, and cause a nuclear winter.

It can be said that this asteroid with a diameter of ten kilometers had a great impact on life on earth, and directly led to the extinction of the dinosaur species that dominated the earth for nearly 200 million years.

Although this impact event had a huge impact on life activities on the earth. But sometimes bad things can turn into good things. Although objectively speaking, this impact event has caused great harm to the species on the earth. But it also promoted the development of mammals.

Because before this asteroid impact event happened. The life forms on the earth are almost dominated by reptiles dominated by dinosaurs. But since the discovery of the impact event, the ecology of the entire earth has undergone wonderful changes.

The reptiles that originally ruled the earth withdrew from the stage of history. And mammals, which have been struggling to survive in the cracks, have stepped onto the stage of history. It was the development of mammals that laid the foundation for the emergence of humans.

It is no exaggeration to say that if it were not for the asteroid impact this time.

If the dinosaurs, the reptiles that have dominated the earth for nearly 200 million years, were not extinct, there would be no subsequent development of mammals and the emergence of humans.

And if the moon hadn't blocked another asteroid, the consequences might not be what it is now. Because both asteroids were very large at the time. The diameter has reached ten kilometers. Such a large asteroid hitting the earth will cause serious damage to the earth's ecological environment.

If these two asteroids with a diameter of about ten kilometers all hit the earth. The consequences may not only exterminate reptiles, mainly dinosaurs. It is very likely that even the mammals that survived in the cracks became extinct.

If that is the case, it may be difficult for life on earth to develop again. Even if they are all extinct. But if you want to continue to develop and evolve, it may be more troublesome. It may take hundreds of millions of years to slowly develop again.

But what makes people feel incredible is that the moon happened to stop this asteroid at that time. Let another asteroid hit the earth. Only then has the prosperity of human beings on the earth today.

Everything seems to have been preordained in the dark. Perhaps all of this was arranged by God long ago. Everything is independent of human will.

If an asteroid happened to hit the earth at that time, then there would not be the prosperity of human beings on the earth later. If two asteroids both hit the moon and were blocked by the moon, then the earth may still be in the era of dinosaurs rampant, and it is impossible for the development of mammals, and it is impossible for the birth of human civilization up.

From this dinosaur extinction event, we once again saw the role of the moon on our earth. The moon is not only a satellite, but also a planet that breeds life together with the earth. '

Looking at Feifei, Tiantian and Qu Yuqian, Zhao Zhongyao talked about this Tycho crater. After the whole family listened to it, they also found it very interesting and miraculous.

However, at this moment, Feifei thought of another question. This is the naming problem of Tycho Crater. This crater is Tycho Crater. This name seems to be unknown to most people. Unlike Kepler Crater, it is the name of a more famous astronomer. And who is Tycho, how could he name this crater mountain after him!

Thinking of this, Feifei looked at Zhao Zhongyao and said, 'Dad, I already know the story about Tycho Crater. It's just that I'm still not familiar with the name of Tycho Crater. This Tycho crater should be named after Tycho. But I just don't know who this Tycho is, and why this crater is named after him! This Tycho doesn't seem to be very famous! Why not name it by a more famous astronomer? '

After hearing Feifei's words, Zhao Zhongyao thought for a while and said,'You don't know Tycho, but that doesn't mean he's not famous. In fact, Tycho was also a very famous astronomer. '

After hearing what his father said, Feifei said puzzledly, 'Is he famous! How could he have Kepler famous. Why not name this important crater after Kepler? '

After hearing what his son said, Zhao Zhongyao smiled and said, 'Son, it seems that you don't know much about Tycho. You also don't know much about the relationship between Tycho and Kepler. Perhaps you would not have asked this question if you had known the relationship between Tycho and Kepler. '

After hearing what his father said, Feifei said in puzzlement, 'Dad, can you tell me about the relationship between Tycho and Kepler. '

'Okay, then I'll tell you something about this Kepler and Tycho! After Zhao Zhongyao finished speaking, he thought for a while, and he wanted to recall, what he knew, the story about Kepler and Tycho.

Zhao Zhongyao thought for a while, and then began to talk. Feifei, Tiantian, and Qu Yuqian all came to Zhao Zhongyao again, quietly surrounded him, and listened to his stories about Tycho Brahe and Johannes Kepler.

‘At the beginning of the sixteenth century AD, in Denmark, a man of noble origin——Tycho Brahe, yearned for the mysterious sky since he was a child, and determined to become a famous astrologer. In order to make himself guess the mysteries of the stars accurately, he worked tirelessly, made his own instruments, made a large number of observations and records of celestial bodies, and gradually entered the track of scientific research.

He had the strong support of the Danish emperor. Appointed as Queen's Mathematician. And he could use the most advanced observatory at that time, so that he had enviable working conditions, and he himself was respected like stars and moons.

The position of the 777 stars he measured had an error of almost 4 arc minutes in the era before the telescope, creating an unprecedented miracle! A superluminous nova he discovered was named "Tycho Nova". The nova takes its name from its discoverer, Tycho.

Tycho is recognized as the founder of modern observational astronomy.

Tycho's success lies not only in the observation and recording of a large amount of celestial body movement data, but also in the fact that he discovered a special astronomer - Kepler, and passed on the baton of astronomical research to him.

Kepler, who was born in a German aristocratic family, never enjoyed the glory and luxury of nobility. On the contrary, he has been associated with disease and poverty all his life. Fighting against social pressure and family misfortune, he transformed from a theological worshiper to a materialistic astronomer.

However, when Tycho was famous in Europe, Kepler was just emerging. Although they appreciate each other very much, due to various reasons, they have no chance to meet each other.

February 3, 1600. It is a memorable day in the history of astronomy. After a difficult journey, Kepler was finally invited to Prague, where Tycho worked.

Tycho is characterized by his sharp eyes. Strong body, luxurious life, bad temper, and authoritative appearance. He is good at precise observation, but lacks imagination and does not believe in Copernican theory.

Kepler's eyes were nearsighted. Physically frail and kind, he is strong-willed and imaginative. In particular, his mathematical analysis ability was unmatched at the time, and he believed in the rationality of Copernicus' theory.

However, the common cause and goal make these two people with completely opposite personalities and abilities have their own strengths closely combined. Tycho appreciated Kepler's intelligence and wisdom, and Kepler respected Tycho's diligence and reputation. The two hit it off and became good friends.

When these two "new stars" traveling in the sky met, a new page in the history of modern astronomy was opened. According to a large amount of information obtained by Tycho, Kepler analyzed and reasoned. Summarized the three laws of planetary motion, Kepler was also known as the "legislator of the sky".

Without Tycho's accumulation of data for decades, it would have been difficult for Kepler to achieve such brilliant achievements: without Kepler's analysis and reasoning, Tycho's observation data would have been dormant for many years. The cooperation between the two of them can be said to be a perfect combination of stars and moons.

It's a pity that their time together was very short. In less than a year, Tycho bid farewell to the world. But their friendship is forever. Kepler never forgot Tycho's last request, and went through all kinds of hardships to complete Tycho's unfinished business, so as to comfort Tycho's spirit in heaven.

Today, the story of Tycho and Kepler has become a well-known story. '

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