Lin Wei, Zhao Guo, and Wu Qi each surrounded the A7 area with hundreds of people, and some unknown construction workers thought that something had happened and they couldn't talk about it, and both sides were ready for a while.

Soon, Wang Fugui drove a big G and came here with Ye Fan and Ye Chengcheng.

Ye Fan pulled the car door and got out of the car, and Shen Zheng, who was surrounded by the crowd, saw Ye Fan at a glance, and shouted: "Mr. Ye!" I am here! ”

At this time, when the security guards saw Ye Fan and Ye Chengcheng coming, they also automatically made way and let the two of them walk in.

"What did you dig up? Take me over and see it. At this time, Ye Fan was also frowning.

"A moment ago, according to the rapid extraction of samples by geologists, according to the method of determining the relationship between mother and child of radioactive decay, one of the substances was determined,

They sent the measurement report twenty minutes ago, Mr. Ye, do you know how many years ago it was? Shen said with a solemn face.

"How many years ago? Century? Millennium? Ye Fan somewhat conservatively estimated that if it was an old-fashioned controlled item, it would have been available since the Tang Dynasty.

It's more than a thousand years ago, and if that's the case, that's not unusual.

Contact the relevant departments to hand it in, report the situation truthfully, and it is no problem to start work normally.

"10,000 years before history." Shen Zhong lowered his voice and opened his mouth to Ye Fan.

"Ten thousand years?! This is impossible, at that time, human beings were still in a primitive society, no, in that era, even the three emperors and five emperors in mythology were not born,

How can there be controlled items? That's impossible. Ye Fan's heart suddenly sank, and he directly denied Shen's words.

At the same time, he also realized that the stakes were very high, except for Shen Chong, Ye Tingcheng, Wang Fugui and others, the other construction workers, as well as security guards and the like, all retreated three hundred meters and stood by.

Generally speaking, the error rate time of the mother-child relationship determination method of radioactive decay can be reduced to less than 100 years.

Because according to the law of decay, it can be concluded that the number of radioactive atoms in the daughter body is: N2=N1[e^(-λt)-1], t=T[ln2×ln(1+N2N1)].

Therefore, as long as the ratio of the number of mother-child atoms is measured, the age of the corresponding item can be obtained.

If it is not used to determine the age of the object, but to test the age of the rock, then the age error rate is even greater, and it can be reduced to less than 50 years.

Because the lifespan of uranium-238 (T=4.5×10^9 years) and uranium-235 (T=7×10^8 years) is long enough, if it is used as a clock, a comparison table is typed, and the age of the rock is instantly revealed.

Therefore, instead of doubting the error of the age, it is better to wonder if there is an error in the operating procedure in the determination of geologists.

"At first, I thought there was a problem with their survey report, but now they have started the second round of measurements, and they are all veteran geologists who have been working with our construction company for a long time.

There is also a bad reputation in the industry, and it is understandable if there is an error in the first round of testing, and if the next five rounds of testing, if all show the same result, then there is only one explanation. Shen frowned and spoke.

"Prehistoric civilizations?" Ye Fan thought of such a possibility.

"Well, that's the only explanation." Shen is a little bit of a point.

"How likely are they to have measurement errors?" At this time, Ye Fan also asked a little uncertainly.

"Theoretically, the probability of error is not more than 1%, because they use two of the methods of measuring the parent-child relationship of radioactive decay.

1. Potassium-argon method to determine the age of the article, 2. Uranium method to determine the age of the surrounding rocks, each two determination methods as a group, divided into three groups, a total of six measurements,

Twenty minutes ago, the age of the corresponding object has pointed to 10,000 years ago, and then we will wait for the determination report to determine the age of the rocks around the item.

It was also 10,000 years ago that it was buried next to those controlled items, so I don't need much more as a result. Shen Zhong still believed in the expert's words very much, and then opened his mouth to Ye Fan.

"Those controlled items are in the pit in front, Mr. Ye, since the excavator master dug it out, we haven't touched the scene again, except for digging the pit deep,

Outside of digging a little bigger, I didn't make any changes to the surroundings. Shen pointed to a large pit in front of him and spoke.

"You've dug a big hole." Ye Fan looked at the big pit with a radius of almost fifty meters and spoke.

"No way, it's work ethic, and I'll have to fill it back in when the time comes." Shen shrugged his shoulders and followed behind Ye Fan.

At this time, Wang Fugui, Zhao Guo, Lin Wei, and Ye Chengcheng also jumped off this one-meter-deep pit, and from the conversation between Ye Fan and Shen Chong, they had already learned the seriousness of this matter.

You must know that it is a prehistoric civilization, a civilization that has been searched for by historians throughout the ages, but cannot be found!

If this matter is exposed today, maybe the eyes of the world will focus on this place, and maybe the reconstruction of Datang Technology will have to be shelved because of this.

Even in order to excavate the surrounding prehistoric civilization relics on a large scale, a red-headed document came down, and the entire Datang Technology had to relocate from this place from then on.

The losses are not insignificant.

When Ye Fan approached the place in the center of the big pit, his mind suddenly "buzzed".

"Isn't it? .... That's impossible? When pigs fly? When Ye Fan looked at the controlled items in the center of the big pit, he suddenly gasped.

It's no wonder that this thing is definitely not an ordinary controlled item.

The appearance of the ordinary rifle, the white paint, although it has been ten thousand years, its white paint has begun to turn yellow, and even some places have begun to corrode, but Ye Fan can recognize what this thing is at a glance.

"Energy Particle Beam Ray Gun? Why is it here? No, I didn't design it, it's a lot behind my blueprints. Ye Fan couldn't hide the shock in his heart and muttered in a low voice.

Because there is no consciousness transmitter, Ye Fan relied on the method of hand-tapping the setting and drawing drawings to introduce the energy particle beam ray gun into the origin, and let the artificial intelligence arrange the production.

If you count it according to time, now that he has just built an energy particle beam ray gun next to him, it is absolutely impossible for him to appear in such a place.

And it is also within a range of 10 meters, there are 18 so many.

Ye Fan looked at the energy particle beam ray gun inside the pit, and a familiar feeling arose.

"Why... I would feel so familiar. Ye Fan stroked it gently, and it had been oxidized almost with a white coating, and his brows were furrowed.

"No, this familiar feeling is not like the familiarity that comes from the body, but more like... From the heart? ”

"What does that feel like? Familiar? ”

"No, it's the loneliness of facing the vast sky, the vast earth, and the misty sea."

"No, it's more of a... Resonance! ”

Ye Fan's thoughts were very chaotic at this time, all kinds of messy information hit his mind, and his head was dizzy and swollen, as if he had been thrown into the washing machine and stirred wildly.

A huge sleepiness struck, Ye Fan's eyes went dark, and he fell directly into the pit.