The difficulty of 5A environmental certification lies in the control of high-energy radiation, as well as the maintenance and growth of photons.

Xiao Zhang has found a way to curb high-energy radiation, and he only needs to upgrade the cleaning robot to improve it quickly. The question of photons is not so easy. Not only is the photon content of the current Harvard mask region not stable, but it is also decreasing dramatically. This is already an indisputable fact.

He begged Zhao Jinlong and Gu Yueyang, but they all thought there was no way.

"Dr. Huo, how are you going to solve our Harvard photon problem?" Seeing that the little old man accepted the card, Xiao Zhang asked straight to the point.

Old man Huo shook his head and said nothing, turned to face the console, tapped with his left hand, and the metal panel in front of the console slid open, and then, his hands changed on the console for more than ten seconds, and the silver alloy plate in front of him slowly presented a large crystal screen three feet square, and there was an oval picture of different colors on the crystal screen. The picture is light green overall, with a rectangular area above it marked with the word "Harvard". This rectangular green has a goose yellow tinge, several areas are dark yellow, and several red spots appear at the center.

Three minutes passed.

Dr. Huo pointed to the picture and said, "The light green area represents the photon content of 120~130PPM, the light yellow area represents 110~120, the dark yellow color represents less than 110, and the red light spot means that the photon content here is less than 100PPM. ”

Xiao Zhang's face changed sharply, and the Harvard campus was large and light yellow, with less than one-third of the light green, and there were at least seven or eight red dots. This also means that the average photon content of Harvard High School has fallen below 4A.

"Doctor, do you know why photons in the Harvard area suddenly dropped so much?"

"I don't know!" Old man Huo shook his head very dryly.

"Why don't you investigate?" Xiao Zhang was very puzzled, with the old man's profound knowledge and super ability, he believed that there should be no difficulty in finding out the reason.

Old man Huo sighed lightly: "Alas, after the old man was exiled, the bigwigs above gave the school a death order, stipulating that my range of activities must not go beyond this building and the apron area of the school gate, beyond one meter, and warn once; Ten meters smaller, more than 100 meters, if you run out of Harvard, you don't have to come back, and you will be thrown directly into the Boston Asylum. ”

"So harsh?" Xiao Zhang was puzzled.

"Hehe, what do you think? The old man hasn't left the campus for thirteen years, and all those bullshit punishments are because I can't help being lonely and being caught after crossing the line. Moreover, even if I proposed an improvement plan, the school leaders would not dare to look at it. The power of the Academy of Sciences is so great that even the leaders of the North American region dare not disobey its orders. ”

After listening to the little old man's words, Xiao Zhang suddenly realized: "So you didn't want to control me by giving me a backdoor procedure?" ”

"You're really not stupid, yes, I thought at first that the guys from the Academy of Sciences were not at ease and sent you to monitor me, so I started in advance. After all these days of temptation, and how you behaved on the street tonight, it can be concluded that you have nothing to do with the above. ”

Xiao Zhang nodded solemnly: "Dr. Huo, are you going to stay here for the rest of your life?" ”

Old man Huo smiled self-deprecatingly, and did not answer Xiao Zhang's question: "Boy, let's work, if you want to obtain 5A certification, you must first find out the crux of the problem." The old man believes that the photons in the universe are far from being in a period of decline, but that someone is playing tricks. ”

"Troublemaker?" Xiao Zhang was stunned, he hadn't thought about it.

"Well, if you look at this map of the photon content distribution in the Harvard mask area, the change outside the campus is not very obvious, only a slight decrease, and the decline on the Harvard campus is serious, especially in this middle area, and it is even more linear in geometric numbers. My monitoring system is not perfect, and it cannot detect photons outside the reticle. It just so happens that we take the opportunity to upgrade the cleaning robot to increase the accuracy and breadth of detection, and strive to find the source of the devouring photons as soon as possible. ”

Xiao Zhang thought for a few breaths, pointed to the picture and said, "The middle area seems to be the C teaching building, I can start from there." ”

"No, no, no! You can't startle the snake. The saboteur should have already laid out, if you are suddenly alert and known by the other party, it will be difficult for us to investigate again. And the distribution map that you see is changing all the time, it's midnight and it's the most noticeable, and by daytime, it's all changing, and the whole range doesn't change much. The old man decided to upgrade 100 sets of cleaning robots first, turn them into second-level combat machines, and then implant a set of photon density sensing programs and a set of reflector detection programs, and at most tomorrow night, he can find the culprit. ”

"That's great! Dr. Huo, let's do it! Xiao Zhang was excited, and he also admired the little old man.

"Hey, hey, hey! Don't worry, sign the contract. The old man has been poor for 13 years, and this time he finally has 200,000 yuan in his account. Old man Huo showed a smiling face and threw a contract card that had been prepared to Xiao Zhang.

The corners of Xiao Zhang's mouth twitched slightly, and he secretly despised this little old man who was a fan of money in his heart.

He didn't rush to look at the contract, and pointed to the bedroom: "Old man, this is a shuttle, right?" ”

"Not bad. Specifically, it's a small star armor that can easily fly into outer space, and I promise to land safely on the American Emperor or Mars before the big guys from the Academy of Sciences give the order to destroy it. It took the old man twelve years to build, and I swore that if things didn't change this year, I would travel to space and never stay in this place where birds don't. ”

"Doctor, if you leave, it will be a loss for Huaxia......"

"Dog~Fart! The old man is nothing but a madman, an old madman ready to be thrown into an insane asylum at any time. You kid, don't use eye drops with me, it's useless, it's been thirteen years, the old man's body is getting worse day by day, it's time to come to a conclusion. Old man Huo snorted with a little excitement.

Xiao Zhang scratched his brain, put aside these virtual things, and said, "Doctor, you can see the street here, that is, you saw the picture of me being hunted down tonight?" ”

"Well, I see. At first, the old man scolded you for being a stinky dog-, but then you suddenly exerted your strength, which made the old man really happy. Well done, you should be crushed to death for those black sheep. But you've offended the little, and it's a bit of a bad thing. By the way, why did Otin Bull destroy the card in the little's hand? ”

"Otham? Who is Otin Bull? Xiao Zhang said curiously.

"It's Omar's father, after you stepped on the little, the black shadow that suddenly killed was O'Tainbull, and he rescued the little."

Xiao Zhang suddenly realized: "It turns out that he is old and immortal!" At that time, I forced the little to hand over Huaxia's plan materials, and the black card in his hand was the evidence. If it weren't for the Otin Bull, I would have been able to defeat the little once and for all. ”

The little old man gave Xiao Zhang a slap: "Dead boy, I still don't know that I have been closed in the ghost gate." If it weren't for the O'Taurus, you would have been killed by the little at that time. That card is not a chip at all, but a portable mini-photon cannon, which is fired at close range, and the protective armor on your chest is broken again, and nine times out of ten you will be hit. That stupid cow did a good deed and saved your life. ”

Xiao Zhang's whole body was excited, thinking about the situation at that time, it seemed really unusual, the black card burst out with sparks several feet in size, which was not the state that ordinary crystal cards should have.