Beibei roams the magical starry world

"It's so cold! Where are we?" asked Dayan Xiaoxiong, who is particularly sensitive to the temperature.

"It's East Asia." Wolf Spider Hawk and Wasp said proudly.

"This is called 'The wild geese cannot speak of ice'!" Xiaopang said in a funny way.

"Mosquitoes can't even talk about ice." Xiaoxiong replied depressedly.

"Why was East Asia so cold in 10,000 BC?" Beibei asked

"In 10,000 BC, East Asia was affected by the Ice Age, and the temperature dropped sharply, resulting in large areas of glaciers and snow cover. By the Neolithic Age, the climate in East Asia gradually transitioned from the Glacial Age to the Interglacial Age, and the temperature fluctuated greatly. But the overall temperature is gradually increasing, the glaciers are beginning to melt, and the net flow of rivers is increasing." Xiao Cong, the robot, explained.

"No wonder it's so cold!" Beibei sighed.

At this time, a group of people with soft facial lines, medium eyes, single eyelids, low nose bridge, round nose, thin lips, black hair, tawny skin, short stature, and muscular people were holding pointed sticks and shovels made of stone. Hoes, etc., are used to cultivate land in fields and sow millet, millet and other crops.

"Why are the people here smaller?" Jack asked

"It has to do with the climate. The climate here is cold. Short people have higher bone density and are more cold-resistant. At the same time, the skin is yellow-brown or brown-black, which is good for absorbing ultraviolet rays and resisting the cold." Xiaohui explained

"No wonder Beibei has no hair, but he's not too afraid of the cold." Monkey Saint said.

As soon as Xiao Sheng finished speaking, he was kicked in the butt.

Then I heard a voice from the horizon: "I will come back again."

During the fight, we also saw some hunters setting traps and pulling nets in the forest, and some hunters were carrying bison and wild boars home.

The timeship took the friends to the vicinity of Zhiyu Village, Shuocheng District, Shuozhou City, Shanxi Province, China. They saw an empty field filled with gravels, vein quartz, quartzite, etc. of different sizes.

Several people moved a huge piece of quartzite to an open and flat place. Then he hit the quartz rock with antlers. After a whole morning, cracks appeared on the surface of the quartz rock.

"What are they doing?" Beibei asked curiously

"Guess what manufacturing processes they use when making stone spearheads, stone arrowheads and other tools." said the robot Xiao Cong.

"This must be an impact!" Jack asked

"It's the impact method: use hard stones or bone tools to impact." Robot Xiao Cong answered.

After having a simple lunch, these people started working again. They rolled a round hard stone and rolled it back and forth against the cracked quartz rock. They kept rolling until evening, and cracks appeared in the quartz rock.

"This should be the rolling method!" Red Boy said.

"Correct answer, 100 points." said the robot Xiao Cong.

At this time, several people came over, holding a tool as wide as an adult's arm with a tapered front and began to smash against the cracks in the quartz rock. Several people changed every half an hour or so, and more than two hours passed. , pieces of quartz rocks of different sizes were smashed open, and the quartz rocks were piled aside, and a few people went to have dinner and rest.

"They should use the smashing method!" Beibei said uncertainly.

"Correct, one hundred percent."

Early the next morning, several people finished breakfast and came to the pile of quartz rocks that were smashed yesterday and started working. Several people continued to smash the large quartz rocks. Several others took hard stones and rubbed them against small pieces of quartz rock.

"This should be a rubbing method. It should rub out bow and arrow arrows, spear heads, etc.!" Xiaohui said.

"Correct, 100%." ​​said the robot Xiao Cong.

Just grind it like this! Grind! In a month, that huge piece of quartz rock was ground into dozens of bow and arrow arrowheads and stone spearheads.

After several people handed the made arrowheads and spearheads to the person in charge for inspection, they got a piece of bamboo, which was probably a confirmation certificate!

Others moved these arrowheads and spearheads into a cave, which should be similar to a warehouse!

The time ship flew into the cave, which was relatively large and filled with pointed tools, scrapers, fan-shaped stone core tools, small axe-shaped stone knives, and stone arrowheads.

"This is the representative Shanxi Zhiyu culture in East Asia during the Late Paleolithic Age." said the robot Xiao Cong.

The time ship started to take off again and came to a different place in an instant.

"This is Cishan Village, Wu'an City, Hebei Province, China. We are going to visit Cishan Culture."

I saw a group of people, each two carrying a basket of soil dug from outside, and put it down in a simple thatched hut.

Two people poured the soil in the basket into a stone trough, pounded the soil, and then sifted it through a tool with many small holes. Some impurities and larger debris brushed out were thrown aside.

The pounded and sifted soil is transported to a cave for centralized storage.

At this time, several older craftsmen filled a stone basin with some fine soil, and then slowly added water in batches and mixed it with their hands to make the soil or pottery soft and easy to shape.

Use your hands to knead the mixture into the shape of a pottery bowl with a round bottom, a slightly open mouth, and a handle or feet.

The old craftsman will dry the kneaded pottery bowl in the shade. After more than 10 days, the water on the surface of the pottery pot will evaporate before firing.

After the firing was completed, the old craftsman spent many days painting and carving the surface of the pottery pot, and a pottery pot that seemed beautiful at the time was completed.

"What steps did the whole process go through?" asked the robot Xiao Cong

"Collect raw materials, mash, screen, add water to mix, make, dry in the shade, bake, and decorate, eight steps." Xiao Qing replied

"Xiao Qing is indeed a senior technician who makes Tiancanyi. His answer is accurate, 100% accurate." said the robot Xiao Cong.

Following the craftsmen as they delivered the pottery bowls to the warehouse, the friends saw household tools such as pottery stands, stone millstones, and grinding rods.

The timeship also took the friends to visit a place where millet is artificially cultivated and domestic chickens are raised.

After visiting the civilizations in East Asia, the time ship took the friends to the Indus River region and visited the ancient Indians' residence, farming and animal husbandry, as well as pottery and textile technology.

"In 10,000 BC, humans were mainly engaged in economic activities such as agriculture, animal husbandry, and pottery making, forming stable settlements and laying the foundation for the development of subsequent civilizations. This time travel is over." Robot Xiao Cong concluded.

Xiaohui said: "In 10,000 BC, humans learned to use stone tools, mainly for agriculture and animal husbandry. Pottery was a high-tech product at that time, and settlements were formed, which were the prototype of future cities."

Beibei said: "Humans learned to use stone tools as a result of human evolution, and pottery making changed human diet."

Robot Xiao Cong nodded, "This is the consensus of foodies."

"Stable settlements are key to human development," Dandan said.

"Why haven't other animals on earth evolved into intelligent beings? But all the different creatures on our fox planet are intelligent beings." Jack asked

"This involves the knowledge of intelligent life genes. It is reported that some extraterrestrial meteorites will carry intelligent life genes into the earth. With the birth of life, these intelligent genes become part of the living body. The living body has evolved and awakened this ability. , and thus intelligent beings were produced. Their shapes may be different, but the intelligent gene codes are the same, thus forming a development advantage. Therefore, intelligent beings in the universe have different shapes and different technological levels, but their intelligent genes are similar." Robot Xiao Cong answer

"Oh! I understand, so alien life also has the advantages and disadvantages of human society." Jack said

"Yes! Higher civilizations will enslave, plunder, and destroy lower intelligent beings. This is the law of the jungle. Therefore, you must be careful when contacting other cosmic civilizations. Do not expose the cosmic coordinates of your home planet without absolute checks and balances." Robot Xiao Cong reminded road.