After the long day, there seemed to be an even longer night.

Due to tidal locking, the position of the gaseous planet it orbits is always constant when looking at the moon on it.

The daylight reflected by the planets covered the long night with a twilight-like feeling, and there was no real dark night like the Augustus Fort.

Han Jianfei's personal terminal has long been shattered in the twist and turn, so he can only estimate the time based on his own feelings, but people's feelings are often inaccurate.

He noticed that during the long night, the people in the village were still working according to a certain pattern, and according to the human life cycle, each work and rest time was about 20 to 28 hours.

In the whole long night, Han Jianfei counted a total of eight work and rest cycles.

In this way, one day and night of this satellite is roughly equivalent to 15 to 20 days in Fort Augustus.

The long night passed, when the two suns dyed a white tide in the east, Han Jianfei was finally able to barely move his body, and he could even get out of bed and walk.

Then he realized that the reason why he was struggling to move was not all a matter of injury.

Because the gravity of this planet is much greater than that of most planets in the Alliance.

Most of the habitable planets in the alliance are between 0.7 and 1.2 standard gravity, and it is difficult for ordinary people to feel much difference, but the gravity here has obviously exceeded this range.

After the "dawn" that lasted for almost a day, Han Jianfei was finally able to get out of bed and move freely, and the young fisherman named Jiang Ada, seeing that he couldn't die, didn't care, and let him go in and out of the small fish house.

When most of the people in the village went out to hunt and fish, Han Jianfei took a slow step and came to the river beach at the mouth of the lake, and saw that Gen Zhizi was in a daze on the river beach, so he beckoned her to come over.

Genchiko was already curious about this outsider, and when she saw him calling herself, she hurriedly ran over barefoot.

These days, she will go to chat with Han Jianfei when she is fine, and the two of them can understand what they say.

"What for?" Seeing Han Jianfei holding a berry in her hand, she was a little puzzled.

"Tomoko, do you have a timer? Stopwatch or something. Han Jianfei asked.

He didn't have much hope, but he didn't expect Genchiko to touch his pigtails, nodded and said, "Yes." ”

After saying that, she shouted to a child on the river beach who was spearing fish: "Little Tanzi, go and bring the baby that your father exchanged from the mine!" ”

She was probably the child king of the village, and the child immediately collected the harpoon and ran towards the village, and in a short time took out a quantum watch.

Han Jianfei Yile: "You have a lot of treasures here." ”

Genchiko handed him the watch with a little pride: "What do you want the timer for?" ”

Han Jianfei put the berries in Gen Chiko's hand: "Do you know how to climb trees?" ”

Genchiko handed the berries to the boy who had just gone to get the watch: "Climb up and listen to the arrangement of this outsider." ”

At this time, many children had gathered on the river beach, and even a few adults were attracted by the lively scene.

Han Jianfei roughly estimated the height of the branch above his head, let the little Tan Zi climb the tree with the berry, let go of the place where the branch was located, let the berry fall freely, and he himself used a quantum watch to calculate the time.

The people in the village didn't know what he was going to do, and they all thought that the outsider's brain might have been broken.

Han Jianfei didn't care, and asked Xiao Tanzi to change a few different heights and try a few times, and then found a dead branch and counted it on the muddy ground under the tree.

Knowing the approximate altitude and fall time, you can basically calculate the gravitational acceleration of the planet.

Sure enough, looking at the results of many calculations, Han Jianfei threw away the branch and shook his head.

"What are you counting?" Gen Chiko's eyes were always fixed on Han Jianfei, who was acting strangely, and when he saw him throw away the branch, he hurriedly asked.

"Calculate the gravitational acceleration of a seamount." Han Jianfei pointed to the result on the ground: "Count it several times, it's probably between 1.9 and 2.4 times the standard gravity - are you all monsters?" ”

The onlookers were bored and dispersed, but Gentomoko was thinking about his question: "What is gravitational acceleration?" ”

"Yes......" Han Jianfei was speechless for a while, not knowing how to tell this girl in the era of tribal civilization about this question, "is how much force you are on the ground...... It's you...... Forget it, you just understand it this way, the bigger the number, the heavier you are. ”

Genchiko nodded as if she didn't understand: "Oh...... Why do you count this? ”

Han Jianfei grabbed the berry that had been smashed and threw it into the river: "Calculate how fast it will take to get out of here." ”

Han Jianfei knew very well in his heart that it was meaningless to calculate this speed, it was just self-comforting, and he couldn't rely on these people who lived a primitive lifestyle to build a starship out of thin air.

"You're leaving?" Genchiko looked at him with shiny eyes, "Then can you take me with you?" I want to go out and see. ”

Han Jianfei shook his head and pointed to the mining ship shuttling like a small black dot in the sky: "Unless you can let those things come down, no one can go." ”

With that, he lowered his head and continued to calculate his meaningless equation, but Tomoko blinked his big watery eyes.

Han Jianfei had imagined many endings for himself, but he never imagined that he would be locked by the law of gravity on a planet with a force of up to two standard gravity.

However, he himself didn't know whether it was lucky or unlucky, after all, it was already one in a million good fortune to not be torn apart by jumping in the flesh, and not being torn apart by the giant planet full of hydrogen above his head.

After a long time, Han Jianfei sighed and threw away the small wooden stick in his hand.

"Don't forget it, I can't go anyway."

Although the ice iron on his finger could give him a physical jump, Han Jianfei didn't believe that he could still have such good luck.

Then he got up and walked hobbling towards the village.

After two more cycles of work and rest, Han Jianfei finally realized the fact that he couldn't leave for the time being, so he could only live in this village first.

Because of the huge gravity, most of the people on this planet are short, and Jiang Ada, who picked him up back to the village, is an exception. But Han Jianfei was sad to find that probably because he had long adapted to this high-gravity environment, most of the residents here were extremely powerful, even the youngest children, and they were very light and unaffected in the slightest.

So he continued to drag his heavy steps and began to look for a place to build a house near the river beach.

The Minor Patriarch had announced that the outsider would be a new member of the village, so he was allowed to settle in a vacant lot next to the village.

Except for the old shaman who said "ominous", no one in the village objected, but the fisherman Jiang Adaa was a little unhappy, but he didn't dare to say anything.

I heard that outsiders wanted to build houses, and the half-grown children in the village came to help, anyway, they usually didn't have anything serious to do except run around by the mountains and rivers, so under the leadership of Zhizi, they worked hard for Han Jianfei.

Most of the architectural styles here are cylindrical houses and tapered domes, and from the perspective of force, it is indeed the most suitable building for use in high-gravity areas, but Han Kannon prefers to build a different one.

In the first cycle of work and rest in the afternoon, Han Jianfei took this group of children to search for a long time, found a place in the forest near the mountain, and with an order, the group of children with various strange modeling tools began to dig the soil.

The fine and dense clay was continuously dug out, and under the curious eyes of Zhizi, Han Jianfei took the group of children to mix the clay into mud, and pressed it into a long strip with a mold made of wood, and put it in the shade of the forest to dry.

"What are you doing?" Looking at Han Jianfei, who was busy with a cycle of work and rest, Genchiko finally couldn't help but ask.

"You don't seem to use bricks here, I'm trying to burn bricks." Han Jianfei counted the number of bricks and felt that it was about the same.

When he was younger, he had learned how to build semi-permanent buildings or fortifications from local materials in an uninhabited environment, but he had not done it himself since he was retired.

In the first few cycles, he found that because of gravity, the clay here was particularly tough, perfect for firing hard bricks.

"Bricks?" The isolated life of the tribe has caused a lot of uneven development in the civilization of Tomoko, who have lived here for generations, and the houses made of wood are hard and stable enough that no one thought that clay could be used as a building material.

"That is, when the clay is burned with fire, it is as hard as a stone, not as heavy as a stone, but it is more regular and can be used to build a house."

It wasn't until after three cycles of work and rest, when dusk came, that Han Jianfei felt that the bricks were almost done, so he commanded the group of children to pile up the dried firewood into a selected cave, and then moved the dried bricks into it one by one and put them on top of the dry firewood.

After sealing the entrance of the cave, leaving only the hole for inlet and outlet, Han Jianfei lit the dry firewood in the cave.

This small makeshift earthen kiln burned for a whole cycle, and when Han Jianfei came on the second long night on this planet, he asked the group of children to fetch water from the river and pour it into the earthen kiln.

After two more cycles of work and rest, under the expectant gaze of Tomoko and the children, Han Jianfei, whose injuries were almost healed, peeled off the soil that sealed the entrance of the kiln, revealing hard bricks that had turned blue-black after high temperature and water.

The children exclaimed in amazement when they saw that the once loose clay was now as hard as stone, and each child was rewarded with a brick after helping the outsiders move the clay stones near the river beach.

Under the call of the adults of each family, the children scattered home, only Genchiko stayed, holding a dense and solid green brick, and couldn't help asking, "This is the brick you said?" Very sturdy, better than hardwood. ”

"That's right," Han Jianfei, who was thinking about how to build his own hut, didn't look up and replied casually, "Actually, this thing has another purpose." ”

"What is it for?"

Han Jianfei glanced up at her: "It's very cool to shoot people when fighting." ”