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Xiao Xuanyu, who was jokingly slid the information display panel of the nuclear fusion rocket to the "trash can" on the side, and turned to Ren Hong who listened carefully, saying: "The British have been studying the engine propulsion technology since the 1970s. The nuclear fusion rocket is one of the main research projects of the "Dadalos Project". The key point of technology is controllable nuclear fusion. If the British realize this key technology, the nuclear fusion rocket will have great prospects."

As he said, he thought about the next one and said:

"This is an idea proposed by the Germans, called the 'Bassad ramjet engine'." Xiao Xuanyu waved his right hand and adjusted a focused screen to the best perspective of the two. He added: "The 'Bassad ramjet engine' demonstrates the Germans' calm and technological expansion style step by step, but it is precisely because of this that it backfired."

"Almost all rockets and new engine technologies including the above mentioned new engine technologies face the same basic problem, namely: if you want greater acceleration, you need to carry more fuel, and then the problem arises. Carrying more fuel means the mass of the aircraft increases, which in turn reduces the acceleration and is almost a dead cycle."

"'Bassad ramjet engine'?" Ren Hong was stunned, and some relevant information immediately emerged in his mind. When he thought of this, he shook his head and said with a laugh: "No wonder the Germans just imagined that the so-called 'Bassad ramjet engine' is just a joke. This engine technology is too unreliable and completely deviates from the original design purpose. I can make a bold judgment that this thing will always exist in the imagination. Those who dare to invest money are either too much money or idiots."

"Indeed!" Xiao Xuanyu smiled, clicking on the concentrating screen with his left hand and gently swinging it to one side, which was equivalent to clicking on the engine technology.

In the eyes of the two, the Germans were indeed very funny. In order to solve the problem of the dead cycle, the "Bassad ramjet engine" proposed a method that is unreliable no matter how you look at it.

According to the Germans' vision, the "Bassad ramjet engine" is also a nuclear fusion rocket, but the way to obtain propulsion power does not rely on nuclear fuel, but on hydrogen ions in the universe. They envision using huge electromagnetic fields to suck hydrogen ions in the universe into the engine.

But how many hydrogen ions can the almost vacuum space have? If this idea is really to be realized, the range of the electromagnetic field will reach about thousands of kilometers, which is almost impossible. In order to solve this problem, the Germans proposed an extremely ridiculous way through artificial means, which is to launch fuel from the earth in advance on the calculated channel, and then the spacecraft can obtain fuel along the way without the need for a huge electromagnetic field.

This kind of idea is probably unreliable for the original proposer, let alone others. No wonder Ren Hong shook his head when he heard the "Bassad ramjet engine" and eliminated it without hesitation.

Xiao Xuanyu paused and said, "The following is the light sail engine technology. We have realized it, but the shortcomings are also obvious. Whether it is the light sail front engine propulsion technology or the technology listed above, they have one similarity, which is limited to short-distance travel and is inefficient. For our light sail front propulsion technology, the longest distance between Mars and the Earth is 100 days. According to the traditional propulsion method, the speed is already very fast."

"But such speed and efficiency are still not the conventional sign of k2 speed. How far is Jupiter, Saturn, and even the Koeber belt at the edge of the galaxy? How much time does it take to waste this trip? And there is a fatal weakness after the light sail is unfolded. The front engine makes the Mars Express unable to pass the asteroid belt at all, which means that it can only move within the asteroid belt."

"Well, I'll listen, you continue to say." Ren Hong said.

Xiao Xuanyu nodded and continued: "The above engine technology is basically unnecessary. I have two solutions here, such as the 'hyperspace engine'. If the universe has more dimensions, does that mean that a spacecraft that uses a 'hyperspace engine' can shuttle through multi-dimensional space at a high speed?"

Ren Hong shrugged and said, "Superspace engine? Under the system of modern laws of physics, this is almost incomprehensible."

"Indeed, there are wormholes! But this is the point that k3-level civilization technology needs to consider, not in the standard speed range of k2-level standard speed." Xiao Xuanyu said, and then called out a last display panel and said: "What you said before can be ignored, but this may be important to pay attention to the technical concept of Elkubir engine!"

"Curvey Engine?" Ren Hong looked curiously, with some thoughts in his mind, but before he could say anything, he wanted to listen to the other party's opinion first and said, "What do you think about the Curvey Engine?"

The "Erkubir Engine" is the so-called "curvature engine", also known as the "curvature engine".

This technical concept is very famous in the world, thanks to the warp engine that appeared in the movie "Star Trek", which can be said to be famous.

Seeing Ren Hong say this, Xiao Xuanyu thought about it and said: "The Elkubir engine, or the warped speed navigation, is to use loopholes in the laws of physics to break the limit that the speed of light cannot be surpassed to reach the speed of light to fly at super-light speed."

"However, the Elkubir engine has many unavoidable problems. The first thing that is to bear is the so-called 'singular matter' that the engine needs, which still does not know what matter it is, which is a particle with negative mass and extremely negative pressure. What is 'singular matter'?" Xiao Xuanyu shrugged and asked, "Antima?"

It also added: "In addition to the so-called indispensable 'singular matter', one of the theory is that the energy required to maintain 'warp bubble' is more than the total energy of the universe according to the theoretical calculation. Warp speed navigation will also generate a large amount of radiation sources, threatening the life safety of crew members. More importantly, does the so-called 'singular matter' exist? Without this thing, there is no need to talk about warp speed navigation, and in addition, the signal cannot be emitted in the warp speed navigation state, which means that the crew cannot control the spaceship during warp speed navigation. I think even experienced crew members are unwilling to drive such a spaceship."

Xiao Xuanyu said helplessly: "Erkubir engine technology is an ideal k2-level speed, but it is almost impossible to achieve it."

"And." Ren Hong stared at the protagonist of "Star Trek" displayed on the screen and said: "The other thing is practicality. The energy required to navigate at warp speed is not enough even the total energy output by the entire human society. This determines that warp speed is too luxurious. In addition, if the spacecraft equipped with the Elkubir engine will be in an embarrassing situation, super-light speed, several times the speed of light? Ten times? One hundred times? Not to mention the energy consumption, how big is the universe? Even if the speed of light is 100 times across the Milky Way, it will take 1,000 years, let alone cross the galaxy."

………
Chapter completed!