Chapter 360

With 700 sails and wings, it takes only three months, which is equivalent to installing one every 13 kilometers along Europa's equatorial ring, and more than nine should be completed every day to ensure the completion of the construction period on time.

Fortunately, the installation process of sail wings is not complicated. All sail wings are made of nano materials. There is an intelligent remote control base at the bottom. When they are collected, they are a long stick, Ying steel skeleton, absolutely tough materials, and strong nano cloth. They can resist strong winds of force 17 or above, that is, five levels greater than the largest force 12 wind on earth, The speed reaches more than 221 kilometers per hour!

Once deployed, the shape of those sail wings is like a white feather. They are long, narrow, beautiful and surprisingly large. The 20km long main mast is divided into 20 combined stalks, which need to be assembled one by one in situ, and then covered with nano cloth curtains.

In order to resist enough wind, a pit about 50 meters deep should be made on the surface of the solid ice, and the main supporting stalk of the feather should be inserted into it.

Therefore, Hao Zhi and his team will drive a space vehicle, pull 20 one kilometer long auxiliary stalks, and then take the Longsi drilling team to drill holes on the solid ice surface that can hardly stand!

Behind the metal tracked drilling truck is a drilling machine of the same size. After reaching the destination, it starts to set up the derrick, align the spiral bit with the ground and dig down at full power.

However, the ice construction is too difficult. Although the ten thousand year solid ice is not a stone, it is not much worse. The drill bit can't bear the force. Once it collides downward, the drilling truck will slide sideways.

In this way, the drilled holes are crooked, which can not meet the construction standards at all. After thinking of various methods, they can't absolutely and stably fix the drilling truck, which is quite scratching their heads.

In particular, a group of people are still wearing bulky spacesuits and thick gloves. They can't be flexible at all. On the back of the satellite, there is no material that can be taken locally. Some are just ice.

The members of the pirate regiment are like ants standing on the surface of the crystal ball, watching the huge transparent water ball roll under their feet.

"The only way is to splash water!" said Sun Mingyu, a physics scholar, frowning. It's a low temperature of minus 20 or 30 degrees here. As long as you pour water, you can immediately freeze the drilling truck on the ice field, and then carry out the drilling work. This is the simplest way to fix the drilling truck!

"Then we have to drill ten a day. What about the rest? The cars are frozen..." Hao Zhiyi stood up and expressed helplessness.

"After drilling one, find a way to thaw the track!" Professor Naduo said, touching his chin.

"How to thaw? Pour hot water? It's like the northeast on such a cold day. The hot water will freeze immediately, and the more it is poured, the stronger it will be!" the beast lit a cigarette and played in his hand.

Everyone was silent. After waiting for a while, long Si suddenly jumped up: "explosion! You can use appropriate explosives to blow up the frozen part without damaging the track!"

"This method is feasible!" Professor Naduo nodded affirmatively. "If it is on the moon, the explosive can't be ignited in a vacuum environment, thanks to a small amount of oxygen in Europa's atmosphere!"

"How many explosives should be used? That is, it will not damage the track, but also blow up the frozen part?" Lele asked a key question.

Long Si Hei hei, the local thief laughed, turned and shouted to the lame man in his forties with a mouth full of yellow teeth: "yellow lame! What do you think?"

The guy called yellow lame limped over: "let me see, it's enough to make a few thunder. Bury them under the car in advance, and then water them and freeze them together. When the work is finished, they detonate and walk away!"

Everyone was surprised and looked at the Yellow cripple with a big grin.

"Don't believe him. This guy didn't work for half his life and blew up fish on the river in the northeast. You see, his leg was blown up when he blew up fish. He said that he could make as many explosives as he wanted. The quantity was controlled more accurately than the blasting experts. It was quite accurate to blow up as many fish as possible. Basically, none of the fish was rotten!" Long Si patted Huang lame on the shoulder and introduced to everyone, "fried ice, this is his specialty!"

Therefore, the problem was successfully solved. Huang lame took two miners and began to work overtime to configure explosives. The ship carried two howitzers, not for war, but for opening the way in case of difficult obstacles, so they carried a lot of shells. They carefully removed the warheads of those shells and took the black powder inside to make thunder.

Therefore, the project started again smoothly. Everyone started work separately. Hao Zhi led Jiajia, Lele and the two miners to drive a drilling truck to measure the surface position, determine the excavation site, and then inject water into the crawler to freeze ice.

After completion, long Si took his drilling team to the car, started the drilling machine, roared down the hole, the speed was not slow, worked six hours a day, and was able to complete the task on time.

Long stalks stood up like a neat row of flagpoles, casting huge shadows on the earth. Hao Zhi stared at those shadows when he was occasionally free.

Suddenly, he remembered something and asked the professor, "why can't Jupiter rise here? After working for several days, Jupiter has been on the other side of the planet. Aren't we rotating around Jupiter?"

Professor Naduo looked at him happily: "yes, we are on the back of Europa, so it's normal not to see Jupiter!"

"Do you mean that Europa and the moon were the same at the beginning, and there is always one side that faces the parent star forever?"

"Smart! They don't orbit like the earth around the sun, and the earth rotates again. Therefore, at any point on the earth, they can face the sun half the day and turn their back to it half the time. Europa, like the moon, has both sides. The front always faces the parent star around them, and the back always turns their back to it. This situation is called astronomy Tidal lock!

A tidal locked celestial body takes the same time to rotate around its own axis as it does around its partner. This synchronous rotation results in a hemisphere fixed towards its partner. "

It is destiny. Hao Zhi muttered.

Hehe, there are many coincidences in the universe. For example, we used to see the sun and the moon on the earth. Were they the same size?

Hao Zhi thought about it. Probably, when a total solar eclipse occurred, the moon just blocked the sun completely and overlapped accurately.

"Yes, as like as two peas, the sun is 400 times the diameter of the moon, and the distance from the sun is just 400 times the distance from the earth. This makes the two people look alike in the eyes of the earth. This is a puzzle that is not known in astronomy history, and it is also called astronomy. Learning from accidents means that even if someone cleverly arranges and deliberately designs it, it's a little too strange... "

It's like a mysterious force deliberately placed the moon in that position and slightly adjusted the distance