[Huo Gu, this thing you built is the one that seems very powerful... uh... what is it called? 】

　　【Oh, yes, it's called ‘E=MC^2’. 】

　　暝 is observing the metal bodies that are gradually speeding up in the magnetic orbit around the equator from its perspective of God.

　　 One kilogram of metal will circle the planet's equator for two weeks, and then launch from the remaining magnetic orbit giant. At this time, the initial velocity of a one kilogram of small shells is already more than 90% of the speed of light.

　　 What Huogu constructed this time is already an out-and-out large-scale sublight weapon. This kind of thing is not something that is often mentioned even in science fiction films or novels.

　　 Hogu relies on radio pulses to locate targets in space. Aliens do not rely on radio pulses for positioning, but the essence is the same. Both use lightspeed particles to hit the target and receive feedback to obtain the location information of the target.

However, in the face of sub-light speed projectiles, the limitations of this positioning method become very large, because the movement of the projectile is close to the speed of light, the projectile will closely follow the reflected radar beam, when the radar receives the beam carrying the position information of the projectile In fact, the artillery shells were very close to the ship’s position, and there was no time to make effective evasive measures, so they had no choice but to resist.

　　 This is also why the alien fleet’s radar could not detect the ‘blue-blue thing’. On the one hand, it was indeed because of its small size, but on the other hand, it was its own sub-light speed.

　　 "M, E=MC^2 is a formula, not the name of an object..."

　　 Huo Gu made a speechless comment, and then explained.

　　 "This formula expresses what kind of existence a mass object will become after its speed is increased to the speed of light, and the relationship between mass and energy at that time."

　　 The misunderstanding did not make Min feel embarrassed, and his mind was not as complex and diverse as human beings, and it readily accepted its own cognitive errors.

　　暝 thought for a while, organized the confusion in his heart into a question, and asked Huo Gu.

　　 [I remember you said before that the motion formula of an object is Ek=1/2MV^2, why does the formula become E=MC^2 after a mass object accelerates to the speed of light? 】

　　 "If I understand this, would I still ask them to learn physics? But you, aren't you better than me in that aspect? How come you ask me this?"

　　 Hearing Min’s question, Huo Gu felt a big head. How could he know this kind of thing? The physics formulas he used now were nothing more than the accumulation of knowledge memorized by rote in high school.

　　 was originally to cope with the college entrance examination, and I was not in the mood to investigate why this happened.

　　暝 mistakenly thought that Huo Gu did not understand the question he asked, so he emphasized one important point here.

[The principle of the thing you built is quite simple. It is nothing more than using an electric field to push the metal body. As the length increases, the metal body will be accelerated faster. I just don’t understand the two formulas you mentioned before. Converted, where did the half in the kinetic energy formula go? Why is there no E=MC^2? 】

　　 "Don't ask me, I haven't studied this specifically, since I am so curious, I might as well study it myself, let me teach you math continuously, and then derive the formula myself."

　　 [Kho Hogu, can't you use the formula freely? Why don’t you understand? 】

　　 "Whoever tells you that you don't understand it can't be used? Haven't you heard of'migrate'?"

　　 "...No, you don't seem to have heard of it."

　　 Huo Gu muttered to himself, but Min was attracted by other things.

　　 I saw it questioning Huogu on the channel,

　　【Hogu, have you noticed? 】

　　 Huo Gu was pulled back from his thoughts, Min's endless sentence made Huo Gu a little puzzled. It roughly inspected all his senses and found nothing unusual.

　　 With doubts, Huo Gu asked Ming.

　　 "What did you notice?"

　　 [In the direction of the enemy, many objects are approaching at high speed, but there is still a while before they reach our position. 】

"what?!"

　　暝’s answer made Huo Gu alert. Unlike Min’s relaxed attitude, Huo Gu understands the seriousness of the problem. The enemy is an opponent who needs the earth’s people to rely on the “myth” to describe and understand.

　　 Huo Gu has thought more than once, if these aliens are not themselves but the earth civilization as their opponents, what is the chance of the earth civilization's victory?

　　 The Sky Eye system began to search, searching for those objects mentioned by Ming. Huogu needed more accurate information to infer the true colors of those high-speed objects, and then achieve targeted defense.

　　 But it turned out that nothing was found, and nothing was found between the alien fleet and Hogu, and there was no echo signal of the radio pulse.

　　 "Where? Why didn't I see anything?"

　　 Even with the full-power Sky Eye system, Huogu still failed to find those objects approaching at high speed. It felt that Min was joking with it.

　　 But Min had a calm tone, and didn't mean to be joking at all. UU reading www.uukanshu. com

　　【It may be because it is too small, you will see it after a while. 】

　　 Huogu kept his faith and doubts for more than a dozen days and nights...

　　 At this time, Skyeye finally observed a large group of objects approaching at high speed. The appearance was a geometrically long fusiform, which looked like some kind of shells with special abilities in online games.

　　 Based on the principle of being careful, Huogu decided to destroy these objects. Based on this idea, live ammunition was launched as an interception.

　　 However, an unexpected scene happened.

　　 "Did off?!"

　　In Hogu's observations, the individuals who were intercepting shells were actually avoided one by one. It is precisely because of this that Hoguna's speculation that these objects are shells was overturned.

　　 Could it be a missile?

　　 Huogu thought of the scene in the last battle where a meteorite no smaller than Mount Everest could be directly turned into powder.

　　 After learning from it, Huogu decided to use a large number of bullets to encircle and suppress.

　　 "I see how you hide this time."

In the face of the overwhelming metal barrage, Huogu is confident that those things will dodge and absolutely cannot avoid them. As Huogu expected, they are indeed not many, but this does not mean that the bullet can play an interception effect. .

　　 Through the observation of the eyes of the sky, Huo Gu only felt that the figure of those unknown objects had become blurred, and when it was puzzled, Min explained the truth that caused this situation.

　　【Hogu, the things you released seem to be useless, and they are all shattered when you touch those objects. 】

　　 "Crush? To what extent?"

　　【Uh...probably it is similar to the vaporization reaction after high temperature. 】