: 68 Meteorites

The fireball dragged a long pyrotechnic tail across the sky from south to north.
A huge flame rose from the horizon, and the ground began to tremble, and a dozen square kilometers of virgin forest was knocked down by a shock wave.
After the explosion, the sky was shrouded in a gloomy orange.
A funnel-shaped pothole was left where the torch hit.
Water accumulates in a pothole to form a lake.
湖泊 This lake is a very regular circular lake that Chen Rui looked down on the top of the mountain yesterday.
The sky-falling fireballs painted on the petroglyphs of the indigenous ancestors are meteorites.
Fireballs and fireballs drag long pyrotechnic tails because meteorites enter the earth's atmosphere and burn with the air in the atmosphere at high speed and violent friction, forming a fireball and a long pyrotechnic tail dragged by the fireball.
大多数 Most of these meteorites come from the asteroid belt between Mars and Jupiter, and a small part from the moon and Mars.
Most meteorites will burn and disintegrate when entering the atmosphere, but there are still about 500 meteorites as small as marbles and basketballs falling on the ground every year.
Very few meteorites are large enough to fall on the ground, because the powerful kinetic energy equivalent to a dozen times the bullet speed and a mass output of a dozen kilograms or even a ton hit a huge impact crater. Some meteorites are not large enough, they have reached the terminal speed when they fall, and they can only create a small pothole at most.
The meteorites recorded a long time ago on the petroglyphs of indigenous ancestors hit the ground.
The maggot caused a huge flame to rise on the horizon, the ground was shaking, the virgin forest near the impact center was knocked down by a shock wave, and a crater with a diameter of 2,300 meters was left after the impact.
It can be said that the size of this meteorite is very large.
Because it is in the depths of the Amazon rain forest, it is scarcely visited, and the local indigenous people do not know the value of the meteorite. Maybe it is just an ordinary stone, or it may be subconsciously afraid of the lake generated by the anger of the gods. Meteorites are salvaged from lakes.
Therefore, Chen Rui concluded that the meteorite is likely to remain at the bottom of the lake.
Chen Rui decided to dive into the lake to salvage this very valuable meteorite.
The value of plutonium meteorites is that they are scientific samples of ‘cheap prices’.
Imagine that to retrieve samples from other planets, you need to use a spaceship. The cost is huge and amazing!
When the Apollo spacecraft landed on the moon and spent billions of dollars, it only collected more than 300 kilograms of samples on the lunar surface from the front of the moon. It is still impossible to obtain samples on the far side of the moon that cannot be seen from the surface of the earth. Meteorites to the moon or other planets obviously cost less.
Facts show that, because it is an uncultivated virgin and virgin land, the meteorites are best preserved. For example, among the meteorite found from the Antarctic continent, 9 meteorite samples came from the moon. More precious is that 8 Meteorites come from the back of the moon.
It's harder and more expensive to collect samples on Mars than on the moon.
These meteorites carry the original information of celestial bodies, which is of great significance for human studies in high-energy physics, celestial body evolution, geochemistry, and the origin of life.
For example, humans have found a large amount of organic substances such as ammonia, nucleic acids, fatty acids, pigments, and 11 amino acids in meteorites with high carbon content. It is speculated that the origin of life on earth has a considerable relationship with meteorite. Life on earth is Meteorites spread the species of life to the earth.
About 25% of the magnetite crystal structure of the Martian meteorite 'Allen-Hills 84001' is formed by bacteria. This discovery provides the strongest evidence for the existence of life on Mars.
Not only is the meteorite a very important scientific research value, but it also has a very high collection value.
The scarcity of radon meteorite and market hype have prompted its collection prices to soar, from a few dollars per pound, to a huge number now comparable to diamonds.
At present, the most expensive meteorites in the world are those of the moon and Mars, about 1,000 US dollars or 6200 + RMB per gram. Then the market price of stone iron meteorite is tens to two or three hundred dollars per gram. Even the cheapest desert meteorite has a high degree of weathering, and it costs 1 yuan per gram. If there are many witnesses when it falls, the value will increase by dozens of times, reaching 40 to 50 yuan per gram.
The high price of the meteorite has also spawned a boom in meteorite collection.
Meteorite searchers have also increased rapidly in recent years, and many people will spend $ 1 ~ 2000 for weeks of searching in one place. Some people will not hesitate to spend tens of thousands of dollars to search hard in a place where there may be a lot of meteorites, hoping to make a major discovery and make a lot of money.
－－－－－－－
Chen Rui stayed in the indigenous tribe for a week.
锐 In this week, Chen Rui taught many of the relatively advanced production techniques of indigenous tribes.
For example, the indigenous tribes were taught how to make pottery and pottery commonly used on the mountains, to make salt from mineral salts, to process and tan animal skins, to use simple tools to build durable and durable houses that can shelter from wind and rain. and many more.
In the end, Chen Rui left a little of the various medicines stored in the space to himself, and gave the rest to the indigenous people, and how the indigenous people used these medicines.
Compared to Chen Rui, indigenous people living in rainforests with harsh environmental conditions and very high infection rates need these medicines. Perhaps a bottle of common cold medicine and penicillin can save a person's life ~ EbookFREE.me ~ Chen Rui Leaving the indigenous tribe, followed by dark spots.
Came to the lake.
锐 Chen Rui left the black spot on the shore of the lake, letting him find food for himself.
锐 Chen Rui jumped into the lake, cast a water split, and dived into the bottom of the lake.
The bottom of Laohu Lake is 3 to 40 meters deep, and only a little light can be seen.
Without much effort, Chen Rui found a meteorite buried in the mud in the middle of the lake bottom.
Collect meteorites into space, then return to the shore and enter space, so that you have time to view the meteorite.
The meteorites are very large and round, without edges and corners. The surface is covered with pits of different sizes and depths, which rattle.
锐 Chen Rui analyzed the meteorite's fracture surface, specific gravity, and magnetic strength. This meteorite is a stone meteorite, and its main component is silicate.
Chen Rui took another tape measure from the space and measured the size of the meteorite.
The plutonium meteorite is 3.11 meters long, 2.21 meters wide, 1.57 meters high, and can weigh up to 40+ tons. This is a big man whose size may be the top three of all meteorite found in the world.
－－－－－－－－
Thank you, my friend, I ’m Junjie, and simple K is rewarding 588 starting coins.
Thank you to book friends 140709 ... for your reward.
thank you very much.
感谢 Thank you very much for all the book friends who can see it, and the book friends who have recommended votes can vote for them.