Yelu Zhousheng and Watson, He Jing, and Shangguan sisters pulled out a power output cable, control line integration module, various indicator lights, and patent leather from the ruins of the garden below the mountain. It was converted from a nuclear-powered mining vehicle when the Lunar Man first came to Earth.

Watson is a true expert in this area, and not in vain. This is what he has accumulated little by little with his knowledge in countless days and nights alone in the face of those boring calculations and reasoning, as the other inhabitants of the moon enjoy the foolish modern equipment and pursue a massage for the comfort of the senses.

All the wires were burned out and had to be removed from the mountain and quiet laboratory, and the integrated wiring modules in the laboratory could also be replaced. As for the indicator lights, there are a few that are necessary. They couldn't move the generator, so they had to fix it on the spot.

No one else can help, at most hand over something. The Shangguan sisters and He Jing went to the botanical garden to pick fruits and graft some plants with broken stems so that they could fully enjoy the sun. When they saw the power plant after they had been busy, they found it as ridiculous as Chaplin, with irregular lights, mottled skin, irregular wiring, hand-cranked starters, and two corners with stones on them. But it's working quietly.

Watson said that he could only do it so well, and that there was no spare for those lamps, and that one was extinguished and one was missing. The only purpose of this device is to illuminate and nothing else.

They even wondered how those elaborate light bulbs came to be, these people were still the same people, because of the change in conditions, everyone understood how it worked, but they couldn't do it anymore.

Like every living or ever living human being, their eyes have caught meteors in the distant starry sky, but they can't get there. I've thought about immortality, but I can't. Every time a loved one dies, it is a heavy blow to them...... They can't.

Slowly, they no longer want to do what they can't do, but focus on doing what they can do in a different way, comforting themselves that they are smart. And unrealistic topics like this have become exclusive programs for old people to fool children. The three words "can't be done" -- this is a truth that everyone knows.

If the waste smelted on the hill can be used, at least some steel pieces similar to shovels can be selected. Yelu Zhousheng said that Rulai really had a little bit of foresight to make so many waste products and throw them here, and the tools that can be used at the moment can only be found here, and we can't even make these waste products.

They still have to go back to the caves, and there's something glowing buried under the gears, and where the pterodactyl fossils are going to fly, you can't see the truth without digging with a shovel. They rested all night, and the next morning they got up early the next day, and each of them took a piece of Rulai waste in his hand and went into the crypt again.

The secrets buried beneath the gears are tempting but unknowing, and they decide to see where the pterodactyls go. The cavern beneath the Golden Tower had not changed much, and the golden light that came from under the stacked gears had become very soft, illuminating their excavations.

Yelu Zhousheng laid out the order of work for everyone, and everyone took turns. Everyone got under the wings of the pterosaur and waved their shovels to pull out the dirt, while others sat and chatted and waited for their time to get up to work.

Because there was no choice - there were no chairs in the crypt, only gears, and they all sat on those piles of gears and waited. The golden light behind them gilded a mysterious outline around everyone's body, even the women's hair was transparent, and the pulse of blood in the tiny blood vessels in everyone's earlobes could be seen clearly.

Yelu Zhousheng put himself in first place, he hollowed out all the soil in front of the fifth pterosaur fossil, and then sat down on the gear pile to rest. The second is Watson going into the tunnel.

Watson dug for a while and found the sixth pterodactyl, and then the Shangguan sisters went in and used a homemade cart to transport the floating earth out. When He Jing was about to go up, Yelu Zhousheng said, "Let me come." ”

He stepped into the tunnel again with a shovel in hand, and pulled out the clogged soil in front of the sixth pterosaur fossil bit by bit. When the last shovel went down, the section of the tunnel in front of him collapsed all at once, and a vertical stone wall appeared in front of him.

Jeremy called in the people from outside and let them see. He gently tapped the stone wall with the small shovel in his hand, and the stone wall made a very ordinary metallic vibration sound, which was made by the shovel.

Watson brought in a larger gear, with a small chainring but a long shaft. He and Yelu Zhousheng held it together and hit the stone wall, as if the part of it buried in the rock had taken deep roots.

"They're lining up and squeezing into the tunnel, just to run into a wall? It must have been a door, and they were rejected by the door, as we do now. "We have to do everything we can to open this door." ”

He tried to dig with a shovel into the place where the rock wall was embedded in the tunnel wall, and found that the rock formation there was so hard that they couldn't dig at all. Try it on top of your head as well.

But as he got used to the light, Yelu Zhousheng saw the pattern carved on the stone wall, and he brushed the dirt from the grooves of the pattern with his hand, and said softly, "Look at what this is?" It's dominoes. ”

Such a strange thing as dominoes was something that He Jing and the Shangguan sisters didn't pay much attention to in the past, which was Yelu Zhousheng's strong point, because when he said this term, they all stared at him, meaning to let him continue.

Yelu Zhousheng said that the principle of dominoes was tested by the physicist White of the University of British Columbia in ancient times on the earth. It's a wonderful phenomenon, a set of dominoes arranged in a fixed pattern can produce a very large amount of energy.

White once made 13 dominoes by his dear hand, the first one was the smallest, only the size of a person's little finger finger, and the volume of the subsequent dominoes was 1.5 times that of the previous one, and by the time of the 13th domino, its area was close to the size of a playing card, and the thickness was 20 times that of a playing card.

White lined up the dominoes at the right distance and gently pushed down the first one with a little finger, and the dominoes fell one after another, all the way to the thirteenth. The energy released when the 13th card falls is more than 2 billion times greater than when the first card is down.

That is, its energy grows exponentially.

"White once said that if you can make the 31st domino -- 277 meters high, then anyone can bring down a skyscraper with just one breath."