Xiao Xuanyu put the nuclear fusion rocket information display panel slide to the side of the "trash", and then look to listen to the serious listening Ren Hong, "the British in the 1970s began to study the engine propulsion technology, nuclear fusion rocket is one of the main research projects of the 'Dedalus plan', the key point of technology is controllable nuclear fusion, if the British to achieve this key technology, nuclear fusion rocket is very promising."

I thought about the next one, I said:

“This is a German idea called the Basard ramjet engine.”Xiao Xuanyu waved his right hand and put a concentrated screen in the best view of the two people, he added: "'Barcade ramjet engine' shows the German step by step of the steady technology to expand the style, but it is precisely because of this and self-defeating."

“Almost all rockets and new engine technologies, including the above, face the same basic problem, namely, if greater acceleration is to be carried, more fuel is needed, and carrying more fuel means an increase in the mass of the aircraft, which in turn reduces the acceleration and almost a dead cycle.”

"Barsade ramjet engine"?Ren Hong, the mind immediately came up with some information related to it, the thought of this he suddenly shook his head, laughing and said: "No wonder the Germans just imagine, the so-called 'Barcade stamping jet engine' is funny, this engine technology is too unreliable, completely deviate from the original design purpose, I can boldly judge, this thing will only exist in the idea, dare to invest money is not more money or idiot."

“Indeed!”Xiao Xuanyu smiled, the left hand clicked on the concentrated screen gently, dumped to the side, is equivalent to clicking this engine technology.

In the eyes of the two, the Germans are indeed very funny, "Basad ramjet engine" in order to solve the problem of the dead cycle put forward a way to see how to be unreliable.

According to the German vision, "Basad ramjet engine" is also a nuclear fusion rocket, but the way to obtain propulsion does not rely on nuclear fuel, but the hydrogen ions in space, they imagine the use of huge electromagnetic fields to suck hydrogen ions in the universe into the engine.

But how many hydrogen ions can there be in almost vacuum space?If such a vision is really achieved, then the range of electromagnetic fields will reach thousands of kilometers, which is almost impossible.In order to solve this problem, the Germans proposed a very comical way by human means, that is, to launch fuel from the earth in advance in the calculated channel, and then the spacecraft can obtain fuel along the road without the need for a huge electromagnetic field.

This idea is estimated that even the original proposer himself will feel unreliable, let alone others, no wonder Ren Hong heard the "Barsade ramjet engine" shook his head and did not hesitate to eliminate it.

Xiao Xuanyu said, "The following is the light sail engine technology, we have achieved, but the shortcomings are also obvious, whether it is light sail front engine propulsion technology or the above listed technology have a similar point, limited to short-distance travel, inefficient."That is to say, our light sail forward propulsion engine technology, the longest voyage time between Mars and the Earth takes 100 days, according to the traditional way of propulsion, the speed is very fast."

"But this speed and efficiency is still not a regular sign of K2 speed, a little further away?"What about Jupiter, Saturn, and even the Kuiper Belt at the edge of galaxies?How much time does it take to spend on the voyage?And there is a fatal weakness after the light sail is unfolded, and the front engine makes it impossible for the Mars Express to pass through the asteroid belt, which means that it can only move within the asteroid belt.”

"Well, I'll listen, you go on."Ren Hong Dao.

Xiao Xuanyu nodded and continued: "The above engine technology can basically not be done, I have two solutions here, such as the 'superspace engine', if the universe has more dimensions, does that mean that the spacecraft can be used to shuttle in multi-dimensional space at a speed?"

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

“Indeed, there are wormholes!However, this is the point to be considered in the K3 level civilization technology, not in the K2 standard speed category.”Xiao Xuanyu said, and then called out a last display panel, said: "The above can be ignored, but this perhaps should pay attention to the El Kubir engine technology concept!"

“The curvature engine?”Ren Hong looked curiously and had an idea in his heart, but he did not say that he wanted to hear the other party's views first, "What do you think of the curvature engine?"

The El Kubir engine is the so-called "curvature engine", also known as the "curvature engine".

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

Xiao Xuanyu saw Ren Hong say this, thinking about it: "El Kubir engine, or warp speed navigation is to use the loopholes in the laws of physics to break the limit of the speed of light can not be exceeded to reach the speed of light to speed faster."

"However, the El Kubir engine has many unavoidable problems, the first thing is that the engine needs so far do not know what kind of material is the so-called 'strange matter', which has a negative mass and a very negative pressure of the particle, "what is the strange matter"?He said, “Is it anti-material?”

"In addition to the so-called indispensable 'strange matter' what, one of the theories, that is, the energy required to maintain the 'warp bubble' is theoretically calculated to exceed the total energy of the universe, and warpspeed navigation will also produce a large number of radiation sources, threatening the life safety of the crew, and the more important so-called 'singular matter' exists?"Without this, there is no need to talk about warp speed sailing, and the inability to transmit signals in the state of warp speed navigation means that the crew cannot control the spacecraft during the warp voyage, and I think even the experienced crew is not willing to drive such a ship.”

Xiao Xuanyu said helplessly: "El Kubir engine technology is the ideal K2 speed, but it is almost impossible to achieve."

“And.”Ren Hong stared at the main character of Star Trek Enterprise, which shows the concentrated screen, saying: "There is also the practicality, and the energy required to sail with warp speed can not even be the sum of the energy currently output of the entire human society, which determines that the speed of warp is too luxurious."In addition, if the ship loaded with the El Kubir engine would be in an awkward position, faster than the speed of light, how many times the speed of light?Ten times?A hundred times?Not to mention the consumption of energy, how big is space?Even 100 times the speed of light across the Milky Way would take 1,000 years, let alone cross-galactic.”