Chapter 1511

In the world where Chen Hui came, when the word radiation is mentioned, most people think that radiation is harmful. This is because for people in the world where Chen Hui came, what they can think of is basically nuclear radiation.

In fact, radiation refers to the phenomenon that a part of the electromagnetic energy emitted by the field source departs from the field source and propagates to the distance, and then does not return to the field source. The energy diffuses outward in the form of electromagnetic waves or particles, such as alpha particles and beta particles.

All objects in nature, as long as the temperature is above the absolute temperature zero, always transmit heat to the outside in the form of electromagnetic waves and particles. This way of transmitting energy is called radiation.

The radiation energy radiates from the radiation source in all directions.

The energy emitted by radiation is called radiant energy.

Radiation is calculated in terms of roentgen per hour. One important feature of radiation is that it is equivalent. No matter the object or gas, the temperature is high or low, it radiates outward. Object a can radiate to object B, and object B can radiate to a.

The term is generally used in ionizing radiation.

Radiation itself is a neutral word, but the radiation of some substances may bring harm.

Thus, it can be seen that nuclear radiation is a kind of harmful radiation, but nuclear radiation is only one of them, and not all radiation is harmful to human body.

The Tiankeng near the Tu Nationality Settlement is just their opinion. Strictly speaking, it should be a meteorite crater.

Because Tiankeng is actually a geomorphic feature, which refers to the karst negative terrain with steep peripheral wall, depth and diameter up to several hundred meters developed in carbonate karst area. It has huge volume, and its bottom is connected with the underground river, or there is evidence that the underground river has moved.

The area inhabited by the Tu people is totally out of line with the landform of Tiankeng.

In fact, not only the areas inhabited by the Tu nationality, but also the areas inhabited by the five human nationalities, are completely inconsistent with the landform features such as Tiankeng.

This is why Chen Hui and Zhou qiuchu will decide that the crater they are talking about should be a meteorite crater.

A crater is a circular crater formed on the surface of a planet, satellite, asteroid or other celestial body by meteorite impact. A larger crater is also known as a crater. The center of a crater with a diameter of more than four kilometers may form a central cone.

The crater may be filled with water due to rainfall and other reasons, forming an impact lake.

Chen Hui and Zhou qiuchu did not notice anything wrong except the lush trees along the way. Occasionally, they were startled by Chen Hui and Zhou qiuchu and ran out, and the escaped animals did not find anything wrong. Chen Hui and Zhou qiuchu also concluded that the crater might not have radiation, or it might have radiation, Under the standard of harmlessness to human body.

If the crater has harmful radiation, it may cause the animals nearby to mutate.

After all, the leader of the Tu ethnic group only told Chen Hui that there was a crater nearby, indicating that the crater had existed for a long time, at least before they came here to live.

If after they came to live nearby, the meteorite landed and formed a crater, and there was a huge impact, it would be known to them. They would not call it a crater, but would tell Chen Hui about flying rocks outside the sky.

After Chen Hui and Zhou qiuchu arrived near the crater, they couldn't help looking at each other, because this crater is completely different from what they know about it.

The first is that there are indeed signs of collapse around the crater. Because of the collapse, the crater has formed an irregular and indescribable shape.

Secondly, the crater is extremely deep, which is totally beyond the imagination of Chen Hui and Zhou qiuchu. Chen Hui and Zhou qiuchu stand near the crater and look down. They are swarthy, deep and don't know how deep it is.

Finally, this crater doesn't look like it was formed by impact!

"How could that be?" Chen Hui frowned and said, "it's totally different from the crater we know so well!"

"It's not totally unexplainable." Zhou qiuchu pointed to the edge and motioned Chen Hui to look.

Chen Hui looked at the place where Zhou qiuchu pointed out that the edge of the crater was some areas that did not collapse.

Zhou qiuchu said: "there must have been an impact. The area that didn't collapse presented the appearance of an impact. However, these collapsed places can no longer be seen. Therefore, it can be determined that the falling meteorite fell to the ground obliquely, causing a certain impact."

"Why is it so deep?" Chen Hui asked.

"Meteorite falling will produce intense combustion due to atmospheric friction. Such a deep depth should be caused by intense combustion." Zhou qiuchu said: "although the crater is very deep, it can be seen that it is wide on the top and narrower down, that is, the smaller the cross-sectional area. This shows that the temperature of the meteorite combustion is beyond our imagination, so that after the impact, the unburned part of the crater has a high-temperature melting effect, which leads to such a depth."

With these words, Zhou qiuchu looks at Chen Hui with a firm look in his eyes.

Chen Hui actually hesitated at this time, because the crater is too deep and there are signs of collapse around it. If it collapses after going down, it is likely to be buried below.

But the firm look in Zhou qiuchu's eyes was undoubtedly saying that he wanted to go down and explore.

"You still insist on it?" Chen Hui asked with a frown.

"Of course!" Zhou qiuchu did not hesitate to reply: "the more intense the burning meteorite, the more impurities it will remove. If it contains iron, it will be refined into steel. We absolutely need to go down and explore it!"

"You wait up there, I'll go down and have a look!" After hearing this, Chen Hui nodded and said.

"No, let's do it together." Zhou qiuchu said immediately.

"In case of collapse, you can try to rescue me from it." Chen Hui shook his head and said.

"We already have accomplishments. Although I'm still one level lower than you, the gap is not too big." Zhou qiuchu said: "besides, it's a crater. No one knows what's under it. In case of danger, we can take care of it. It's meaningless to leave one person on it."

Seeing what Chen Hui wanted to say, Zhou qiuchu said directly: "if we want to die, we will die together!"

Hearing Zhou qiuchu's refusal, Chen Hui had no choice but to smile and said, "well, since you insist on going on together, let's go on together. Have you mastered the method of lifting Qi and lightening body?"