Since the Titan's overall material has not been modified, the internal and external material resistance peaks have not yet been specifically measured.

Therefore, this time is to test the specific impulse of the controllable nuclear fusion engine, and it is also the limit to test the resistance of the Titan's own materials, which will determine the flight speed of the Titan in the future. If other factors are not taken into account, the maximum expected value of Nguyen Lin's target is 1% of the speed of light.

At the same time, according to the rocket formula, the specific fuel used should also be calculated.

The earliest Daedalus program on Earth envisaged that the exhaust gas of a nuclear fusion engine could be ejected at a speed of 7% of the speed of light in a vacuum, so that with a total weight of 10 tons of structure, payload, and backup fuel for a single-man spacecraft, the spacecraft would need 1.54 tons of fuel to react and eject backwards to accelerate to the speed of one hundredth of light

In the previous assumptions of geoscientists, the exhaust gas ejected by the nuclear fusion engine design could reach 12% of the speed of light in a vacuum, and the spacecraft needed more than 8.7 tons of fuel to react and eject to accelerate to one hundredth of the speed of light.

Ruan Lin rushed out of the "Mars" base and shouted in the direction of Titan: "WIT! The controlled fusion engine has been successfully developed, and now the subsequent engine adaptation and modification of the Titan will be carried out! ”

When he looked around again, Ruan Lin was already dumbfounded: the original empty ice surface was now full of transparent aseptic assembly bases and refining bases working, and they should have also been aseptically processed according to their own requirements. It seems that the changes in the past few months have been really upside down.

"Okay, congratulations, Dr. Nguyen. This will be a qualitative leap forward for Titan, and subsequent ships will also be equipped with controlled fusion engines. ”

At this moment, two robots that had never seen before rushed past them, one that seemed to know what it was doing, their whole body was a whole small crane, and the other had a mechanical body similar to that of a human, except that it had five stout mechanical arms.

Ruan Lin was puzzled: "Wit, will you build other kinds of robots by yourself?" ”

"Yes, Dr. Nguyen. Since I moved to this quantum computer, I seem to have learned what learning is. I built these two robots on my own from what you taught me a few times before. One of them is a lifting robot, which now numbers 1,200 in total. Mainly working in groups, only 5 such lifting robots are needed, which can easily lift objects weighing 1500 kg. ”

Wit continued, "The other is a precision disassembly robot that I developed based on the large number of unknown kinds of computers found in those triangular buildings, and we need to study this kind of computer that has never been theoretically presented. Of course, they can also complete the disassembly of the original engine and the assembly of the delicate parts of the original engine of the Titan for us. ”

Ruan Lin smiled, it seems that WIT doesn't need to teach this aspect by itself.

"By the way, how is the production of nuclear-powered ice drilling robots now? There is also the construction of these bases. ”

"More than 40 ice drilling robots have been produced so far, and we can't achieve mass production, because it consumes too much raw materials. There are currently 230 assembly bases and 93 refining bases. We've gotten through Europa's 25 kilometers of ice, and there's an ocean beneath it, and we're not going any further.

We only collect seawater near the bottom of the ice and refine it in a sterile refinery base on the surface, and I deliver deuterium and tritium to you every hour so that your experiments are not interrupted. ”

Ruan Lin looked at the Titan blankly: "I was so engrossed in it, I even forgot about this raw material, I thought that the amount of water we carried was enough to support our experiments." Thank you, wit. ”

"That's what I'm supposed to do, Dr. Nguyen. Next, it's up to you to publish your next phase goals. ”

Ruan Lin said: "On the surface, I need you to manipulate a large number of crane robots and dismantling robots to reassemble the Titan's engine and adapt the electromagnetic pulse bomb launcher in the ruins.

The ocean below Europa was 100,000 meters deep, and if we wanted to explore it at depth, we had to build a submersible, and I was solely responsible for the design. ”

"Okay, Dr. Nguyen." wit replied.

At present, the maximum depth of human diving has reached more than 10,000 meters under the sea, but Europa's ocean height is 100,000 meters, which is ten times the challenge.

The power of body pressure is enormous. If one standard atmosphere in the Earth's atmosphere is used as a unit of measurement, the liquid pressure of the submersible is equivalent to 10 standard atmospheres for every 10 meters of dive in the sea. In contrast, a space probe launched by the Earth only needs to overcome about 1 standard atmosphere, even if it flies 10,000 meters in space.

Ruan Lin only remembered the key element at this time, this is Europa, not the earth!

Given Europa's smaller mass, its water pressure does not rise as much as Earth's as much as it does with increasing water depth. The Earth is 7.5 times the gravitational acceleration of Europa's surface.

Ruan Lin began to mentally calculate, according to a linear relationship, the water pressure at the bottom of the ocean at a depth of 100,000 meters below Europa is 1,335 Earth's standard surface atmospheres. The water pressure at a depth of 11,000 kilometers in the Mariana Trench is equivalent to about 1,097 Earth's standard surface atmospheres. They differed tenfold in depth and subjected to ten times the difference in water pressure.

In other words, although Europa's ocean is very deep, the water pressure at the bottom is actually very low.

Ruan Lin began to look through the deep submersibles made in human history. He then decided to use a lightweight, high-strength titanium alloy as the submersible's outer shell, which may have bottomed out the titanium alloy inventory carried by Titan, but it was worth it in order to fulfill humanity's desire to find life in this star system.

Ruan Lin began to draw engineering drawings in the main control room.

To resist water pressure in the deep sea, deep submersibles need to have a rounded profile. The curvature must transition smoothly without sharp edges and corners. The smooth arch shape distributes the external pressure evenly over the entire surface of the structure, referencing eggs on Earth.

Secondly, considering other factors, Ruan Lin did not intend for it to carry out manned missions, and its interior must be filled with real-time video transmission equipment. And in order to avoid the danger of collision, the WIT will be operated directly after the dive, and Ruan Lin is mainly responsible for the observation mission.

Finally, it is necessary to carry several underwater samplers to bring back precious samples of minerals, sediments, possible deep-sea organisms and deep-sea water.

With the earth's mature deep submersible technology, Ruan Lin quickly completed the drawing of engineering drawings.

Ruan Lin raised his head and breathed a sigh of relief: "Wit, the engineering drawing is complete." I hope this submersible will be completed in a month! Hopefully, we will be able to discover unknown life beneath the depths of the ocean. I named this program 'Deep Diver Program'. ”