[Light needle (level 3): Accelerates one gram of 'needle tip' to 0.999999999 times the speed of light, and uses the mass increase effect to generate 13.95 trillion gigajoules of impact energy when it collides with a mass object. Fame required for redemption: 500. 】

Zhao Yu looked at the weapons that appeared in the exchange list, scratched his head, and was a little dazed.

Every word in the introduction can be understood, but when combined, it is completely incomprehensible, and the last paragraph, which generates 13.95 trillion gigajoules of impact energy, does not know how powerful it is.

The only thing I know is that this light needle is a weapon that can only be found in a level 3 civilization.

Fortunately, you can ask people if you don't understand something.

Zhao Yu was about to ask Colonel Chu what Joule was, when he suddenly stopped again.

It's hard to explain how the weapon came from.

simply patiently, and after the matter here was dealt with, Zhao Yu returned to his residence as usual.

After staying for a while, he found Colonel Chu in a hurry.

"Sir, what's the joy?!" Seeing that Zhao Yu had left not long ago, and had come back in a hurry, with a look of joy on his face, Senior Colonel Chu asked curiously.

"The Pangu civilization has passed on a new weapon!"

"What!?"

Senior Colonel Chu's face was overjoyed, and he hurriedly asked, "What kind of weapon is it?!" ”

Zhao Yu read out the introduction from the prestige list and asked, "Do you know how powerful this 13.95 trillion gigajoules is?!" ”

"13.95 trillion exajoules?!"

Colonel Chu was taken aback, this number was beyond imagination, he hurriedly took out the banknote and began to calculate.

"The formula for impact energy is E=1/2mv^2, E is the impact energy, m is the mass of the impacted object, and v is the velocity ......"

"The speed of light constant c = 299792458 m/s, the qualitative effect is mentioned in the weapon description......"

Colonel Chu paused for a moment, recalled it, and calculated it again, "The mass increase effect is that the mass of material movement follows the mass-velocity relationship, and the calculation formula is M=m/√[1-(v/c)^2]......"

“……”

"The energy released by the explosion of one ton of TNT is 4.18*10^9 joules......"

"The energy required to destroy the blue star is 3/5×GM^2/R = 6.299×10^32 joules, where G gravitational constant, M, R are the mass and radius of the Earth ......"

"The energy generated by the impact of the light needle is 1395×10^32 joules......"

Colonel Chu's eyes showed shock, "The energy generated by the impact of this light needle is enough to destroy the Blue Star 200 times!" ”

But soon, he frowned again, "According to this calculation, the power of the light needle impact is actually not as good as that of the particle black hole collapse bomb......"

Colonel Chu explained a lot, and even chattered while calculating, as if he was talking to others.

But Zhao Yu only understood the last two paragraphs, that is, this light needle impact can destroy the blue star 200 times, but the power is not as good as the particle black hole collapse bomb.

This made him a little curious, and asked, "What do you say?!" ”

Senior Colonel Chu said with mixed emotions: "The impact of the light needle can be regarded as a physical blow, the collapse of the particle black hole is related to gravitational waves, there is no research on this aspect, from the senses, the gravitational wave strike is more advanced, and it is somewhat difficult to defend against ......."

Zhao Yu was puzzled: "Can this light needle be defended?" ”

"A physical strike, according to the instructions of the light needle, must hit an object with mass to produce so much energy, and before the impact, it is just a needle moving at nearly the speed of light......"

Senior Colonel Chu explained: "The particle black hole collapsed, covering an area of 500,000 kilometers, and we could hardly escape or defend against ...... in this range."

"And the light needle strike, the known speed is close to the speed of light, although it cannot be detected, but the speed of light is 300,000 kilometers per second, according to the data analysis in previous wars, our laser defense system can only hit 100% within the range of 30,000 kilometers of the battleship......"

"This means that as long as we are 30,000 kilometers away from the enemy ship, keep dodging, and do not follow the original trajectory, there is a high probability of dodging the light needle strike......"

Before he finished speaking, Senior Colonel Chu paused again, shook his head and said, "No, it can't be counted like this......"

"The light needle strikes, the carrier is the 'tip of the needle', the mass is only one gram, and the existing gravitational wave detectors are absolutely undetectable......"

"At the speed of the light needle, other detection devices cannot detect it, and when these devices can detect the light needle, it means that the impact has ......"

"Coupled with the vacuum environment in the universe, the light needle strike is almost an infinite range of ......"

"Unless it encounters an obstacle and releases energy on an early impact, until then, the light needle can keep moving at the speed of light and never fail......"

The more Senior Colonel Chu spoke, the more excited he became, "The infinite range is only theoretical, in fact, there are many massed objects flying everywhere in the universe......"

"Even if there are countless unknowns in the universe, in the galaxy, it is completely possible to calculate the obstacles in the entire universe and avoid them in advance, so that ultra-long-distance light needle strikes can be realized......"

"Even, if the detection and computing power are sufficient, the light needle can achieve a cross-galaxy strike ......"

"Moreover, according to the introduction, the mass of this light needle is only one gram, does it mean that it can be launched normally?!"

He said a little excitedly: "The particle black hole collapse bomb needs the battleship as a carrier, it is difficult to use it without the battleship, it is extremely conspicuous itself, and the shortcomings are also very clear, and each battleship must self-detonate before it can be used......"

"But if the light needle strikes, if it can really shoot out uninterrupted like a kinetic cannon, it is unimaginable......"

A only one gram, almost no means can be detected, and the detection is the attack means of the strike, if it can be launched on a large scale, a one-time shot of hundreds of millions of ways, this kind of intensity, let alone 30,000 kilometers, is 3 million kilometers, I am afraid that it is difficult to escape.

Moreover, the most terrifying thing is that this light needle strike, in the face of that kind of fixed target, almost 100% hits.

Because the enemy will not be able to observe that the light needle is already on its way, they will not even know that the attack has been sent.

"Sir, this weapon is very good, if it is operated properly, we can even launch it directly from the solar system to Proxima Centauri and kill those aliens......" Senior Colonel Chu was very satisfied, fortunately, the Pangu civilization is the matriarchal civilization of the Blue Star civilization, otherwise if we encounter this kind of predicament, I am afraid that we will have to wait to die.

In the next door in the Proxima Centauri system, there is a level 3 civilization, and the other party may also have this means to make a civilization quietly destroyed.

"Launching from here to Proxima Centauri, even if it's a light needle, it will take 4 years to get there, right?!" Although Zhao Yu doesn't understand those data formulas, he still understands the common sense units of light speed and light years.

"That's right!"

Senior Colonel Chu nodded and said: "Therefore, how to make the light needle reach Proxima Centauri smoothly is the key, which requires the light needle to not touch any mass object in these four years, not even one gram......

"It seems a bit difficult......"

Zhao Yu frowned, he had been making up for the knowledge of astronomy these days, and he knew that in this universe, there was a large amount of cosmic dust floating in it.

Senior Colonel Chu also thought of this, and quickly said, "Sir, do you know what the minimum trigger mass of this light needle is?" ”

"I don't know ......"

Zhao Yu shook his head, the light needle has not been redeemed yet, he only knows the introduction of the prestige exchange list, what is the specific situation, and he has to wait for the exchange to be exchanged.

Senior Colonel Chu nodded slightly, and gradually calmed down, and analyzed: "Most of the cosmic dust ranges from ten to three hundred microns, with an average mass of one hundred and fifty micrograms, as long as the minimum trigger mass of the light needle is greater than five hundred micrograms, the difficulty of our cross-galaxy attack will be greatly reduced......"

"It's hard......

Zhao Yu tugged at his hair and said: "Four light years, which is equivalent to a distance of thirty-seven trillion kilometers, the cosmic dust has been moving all the time......"

"If we want to strike across galaxies, we need to find a route that can allow the light needle to pass smoothly within such a range of light, and we also need to calculate the trajectory of these cosmic dust......"

"Also, we don't seem to be able to detect all the cosmic dust between the solar system and Proxima Centauri......"

"It's really hard to ......"

Senior Colonel Chu nodded, and then said: "But it's hard to return, as long as you find a way to overcome it, there will always be a chance......"

"Over the years, we have received a lot of light signals from the universe, and we can judge the location of obstacles based on their trajectory......"

"Every second of light signal can draw a rough map of the universe, and the light signals of all time periods should be able to judge the trajectory of cosmic dust......"

This is like adding a time dimension to minesweeping, every second is changing, and you need to judge the movement of the next second based on the situation of the previous second, or judge the movement of the previous second through the next second.

Zhao Yu was speechless, "This amount of work is not small, how many layers of cosmic star field maps need to be constructed for the optical signals received over the years?!" ”

In seconds, a layer of cosmic star field map in one second has 31.53 million seconds in a year, and after so many years, the minimum cosmic star field map that needs to be constructed is counted in billions.

This is just the simple work in the early stage, and the most complicated thing is to find the pattern from these billions of star field maps.

The most terrifying thing is that the world is so large, and the number of optical signals received every year is innumerable, even if only the recorded ones are counted, it is an unimaginable magnitude of calculation.

Senior Colonel Chu nodded and said, "It is almost impossible to achieve it by relying on manpower, and it can only be achieved by relying on computers......"

"Sir, you should have a superhost on the lunar base, right? With its computing power, there may be hope ......"

Uncle Da?!

Zhao Yu was stunned for a moment, nodded and said, "I'll send your thoughts back and see if there is a way to calculate ......."

"I'll keep an eye on it first, I'll see when the light needle will be built......"

After speaking, Zhao Yu returned to his room.

At this time, the system prompt beep rang twice.

[Mihui Civilization (Level 1): 10.0%, activate 10% node, gain 100 Fame. 】

[Sky Bat Civilization (Level 1): 10.0%, activate 10% node, gain 100 reputation. 】

[Reputation: 700]

[Current amount of exchangeable technology: 1]

"Do you want to save up a little more and look at other technologies?!"

Zhao Yu was a little moved, the light needles exchanged for 500 prestige are so powerful, will there be more powerful technology with more prestige?!

But it's impossible to say for sure, in case a convertible technology requires too much prestige, and there is a possibility that the fighter will be delayed.

Now, according to Colonel Chu's plan, they are delaying the limit of time, that is, three to five years.

If you exchange the light needle now, calculate a feasible route as soon as possible, and launch an attack on Proxima Centauri, maybe the crisis will be completely resolved in four years.

After hesitating for a moment, Zhao Yu finally decided to exchange the light needle.

[Do you spend 500 Fame to exchange for Level 3 Civilization Technology: Light Needle?] 】

"Yes!"

[Please select a location for the production line.] 】

Brush!

After a flash of red light flashed in front of his eyes, a transparent star map of the solar system appeared in his mind again, and the location needed to be placed.

Zhao Yu opened his mouth involuntarily, with a shocked look on his face.

"It's such a big place?!"

What he didn't expect was that the required placement location of the light needle production line was so large that the entire base could not be put down.

You must know that the base he is staying at now is the fragments of Pluto, which are broken and have a diameter of 200 kilometers.

The red block where the light needle production line is located is not clearly marked with how much area is needed, and Zhao Yu can only roughly judge the length of the red block according to the length of the base is more than 1,000 kilometers.

This means that he has to find a place at least 1,000 kilometers long to place the production line of the light needle.

"This ......"

After looking for a long time, there was no spacious enough open space on the moon to place, and finally found two places on the blue star that could be placed.

One is the newly planned scientific research area in the Blue Star transformation plan, and the other is the mass production grain planting area.

"What a coincidence......"

Zhao Yu didn't expect that what he had done before would come in handy today.

He was about to press the placement button in the scientific research area, when he was suddenly stunned again.

"I want to tell Uncle Da about this......"

He worries that there are ignorant robots that destroy the production line.

This thing is a technological product of a level 3 civilization, and it took 500 reputation to redeem it, and it was destroyed like this, and it would be finished if it couldn't be repaired.

For the sake of insurance, Zhao Yu still recorded a video and told him about the placement of the light needle, and asked Uncle Da to take protective measures to ensure the smooth installation of the light needle production line.

In addition, Zhao Yu also talked about the content discussed with Colonel Chu before, about the idea of using light needles to attack the enemy across the galaxy.

Let Uncle Da see if there is a way to build a set of star maps that can light up the solar system and Proxima Centauri.

After recording the video, Zhao Yu sent it back to the moon.

It just so happened that Uncle Da also sent a routine report message.

Zhao Yu looked through it, it was no big deal, and there were only two points of useful information.

First, Uncle Da has accumulated 500,000 warships, which have been sent to the front line at one time, so that he is ready to receive them.

The second is related to the humans on Comet Bell, which mentions that Uncle Da discussed with the penguin executives and designed a reward mechanism.

Moreover, this set of reward mechanisms is applied very well, and the people who were idle all day long and had nothing to fight and brawl have all run to the virtual world and began to learn to control the spaceship.

Human society has also begun to rise a wave of worship that whoever can get a spaceship driver's license has the right of priority to mate.

Seeing this, Zhao Yu couldn't help but nodded with satisfaction, "If it goes on like this, we will soon be able to form a fleet controlled by humans......"

The robot fleet, after all, has hidden dangers, and it needs to be limited by an absolutely loyal host, and there is no way to fight independently from a distance, otherwise there is also a risk of defection.

Therefore, it is imperative to form a fleet controlled by natural persons, even if according to the current situation, this fleet may not be used, but it cannot be without.

(End of chapter)