super robot clone

Chen Xin was taken aback for a moment, and asked in confusion, "What can you do?"

The steel coin chuckled and waved his hand, as if doing a magic trick, a metal ball the size of a football flew out of its body and appeared in front of Chen Xin out of thin air.

The volume of this metal ball is larger than the body of the steel iron, but Chen Xin has long been accustomed to the magic of the steel iron, and he does not blink his eyes.

Chen Xin lightly touched the metal ball with his fingers, and the metal ball rolled lightly in the air, and soon stabilized.

Chen Xin was taken aback for a moment, and asked in confusion, "Gangbang, what is this?"

Gang Beng said: "Miniature gravitational wave detector! It is packaged with a one-dimensional string stretched by the Higgs boson. The sensitivity is very high, and it can detect the emission from more than 5.8 tons of objects within a radius of 50 astronomical units." The gravitational fluctuation is about 0.99 light-days. In addition, there is a miniature fusion battery that can run for 0.1 years and a miniature curvature engine, which can reach [-] times the speed of light at the fastest. As long as there are [-] such detectors With the detector, we can monitor all areas within a radius of [-] light-year."

A look of amazement appeared on Chen Xin's face. After living in Tianqin civilization for so many years, he naturally understood how difficult it is to monitor a star field.

The spacecraft of the third-level civilization basically reached the speed of light. This kind of flight at the speed of light is not the speed of light in the sense of relativity, but the effect of the near-light speed that can be achieved by dragging the spacecraft forward by changing the curvature of space.

In this case, there is no relative motion between the spaceship itself and space.

Generally, the third-level civilization can bend the curvature of space to 0.99 through the gravitational field effect, but it will become very difficult to go up.

Only the fourth-level civilization that has broken through the theory of the grand unified field can bend the curvature of space to more than 1. At this time, the spacecraft will enter the state of flying faster than the speed of light. This is the technology only available to the fourth-level civilization.

But in this way, it brings difficulties to the detection of the spacecraft.

When a spaceship is approaching you at close to the speed of light, it will not cause mass effect as stated in the theory of relativity.

Therefore, the amount of advance warning you can get is very limited.

Not to mention flying faster than the speed of light.

Therefore, before the large-scale development of tachyon radar, whether it is a third-level civilization or a fourth-level civilization, the usual habit is to deploy various detectors as far as possible to provide a long enough warning time for the galaxy.

Of course, it is very resource-intensive to deploy detectors in such a vast star field. To some extent, for every 0.1 light-year increase, the required resources will increase tenfold.

Even for Level 0.5 civilizations, their early warning systems will only be deployed to an area about [-] light-years away from their guarding planetary system.

Unless a high-power tachyon radar is developed, it will be difficult to carry out long-range early warning.

Chen Xin originally wanted to come over and ask Gangbang if he could make a tachyon radar, but who would have thought that Gangbang would just throw such a thing out.

Chen Xindao: "Gangyi, why don't we use tachyon radar?"

Gang Beng was a little speechless: "Old Dou, the material you use as a tachyon generator is Chinese cabbage. I have not yet reached the fifth level of civilization, and I can only produce a small amount of tachyon materials, which is not even enough to supply the China battleship. There is a surplus to engage in high-power tachyon radar."

Chen Xin said with a wry smile: "Okay, but the number of such miniature gravitational wave detectors may be quite large. We want to monitor the star field within 0.1 light-year around the flame galaxy, and I'm afraid we can't do it without a few million.

The steel hammer chuckled and said, "Old Dou, don't worry about this! This kind of gravitational wave detector is not simple. It can also be assembled in an array to form an effect similar to a gravitational lens. In this way, whether it is the detection range Or the detection accuracy can be improved by ten or a hundred times.”

Chen Xin was taken aback for a moment, then frowned and thought about it, gravitational lens?

Of course, Chen Xin is not unfamiliar with this concept. The so-called gravitational lens refers to the convergence or multiple imaging effect produced by the source of the guiding force field on the electromagnetic radiation emitted by the celestial body behind it.

It got its name because of the converging effect similar to a convex lens.

This effect is a phenomenon predicted by Albert Einstein's general theory of relativity in the [-]st century AD. Because the space-time will be distorted near the massive celestial body, the light will be bent near the massive celestial body (the short distance of the light along the curved space line propagation).If there is a massive foreground celestial body in the line of sight from the observer to the light source, two images will be formed on both sides of the light source, as if a lens is placed between the observer and the celestial body, this phenomenon is called gravitation lens effect.Observations of gravitational lensing prove that Albert Einstein's general theory of relativity is indeed the correct description of gravity.

Of course, scientists must observe the phenomenon of gravitational lensing through light rays, which must have a very large mass of celestial bodies, and there is no way to detect the fleet of alien civilizations.

Chen Xindao: "Gangyi, can the gravitational wave detection array composed of miniature gravitational detectors you mentioned have the effect of converging gravitational waves? It's like the radio telescopes used by humans before, which can receive tens of billions of years ago. The sensitivity and detection distance of electromagnetic wave signals from the depths of the universe are beyond the reach of ordinary optical observation.

Gangzhu chuckled, nodded and said, "That's right, that's the truth."

It pointed towards the void, and the flame galaxy in the Jiangcheng command center lit up instantly at a ratio of 100 trillion holographic projections.

Flame α and Flame β are surrounded by double stars at a distance of more than 1 astronomical units from Flame γ, and Flame γ runs independently according to the established orbit.

Gang Jun said: "Old Dou, the angle between the ecliptic plane of Flame γ and the ecliptic planes of Flame α and β is less than nine degrees, so we can conclude that the four planets in Flame γ and these three stars are in the same ecliptic Generally speaking, in an interstellar war, if the enemy wants to attack a heavily guarded galaxy, he will attack from the outside of the ecliptic plane. Otherwise, if he enters at an angle perpendicular to the ecliptic, he will be easily flanked by multiple sides. Flame γ has not been around for a long time, and a complete defense system has not been established yet, and the possibility of the enemy attacking from both sides of the ecliptic is not ruled out. So I divided the defense work of the Flame galaxy into six directions, and put 1 micro A large array of gravitational detectors can continuously detect objects with a mass of more than 0.4 million tons within a radius of 100 light-years. If the enemy wants to come in, it should be able to provide us with an early warning for one to two months!"

Chen Xin nodded, smiled and said, "That's right, let's do it like this!"