He Jun didn't have the patience to explain, and said casually: "This is an exploding sun, there is a kind of light that is invisible to the eye, and within more than a hundred light years, it will die when it is illuminated." [Full text reading]"

"Those giants were just killed by the light?" Lin Kai drew inferences.

After using night vision for several days, he finally knew that some light eyes couldn't see.

He Jun nodded.

"What's Lightyear?"

"Just one year is a light year."

Lin Kai felt a little dizzy in his brain: "Just go for a year? Can the light still walk? ”

"Of course you can!" He Jun gritted his teeth, "It takes more than eight minutes for the light to walk from us to the sun." ”

"What?" Lin Kai's eyes were swollen like big-eyed toads, and he couldn't understand what He Jun meant by these words.

He Jun explained the basic astronomical knowledge and the concept of the speed of light in the most concise language, and Lin Kai understood a little, and said thoughtfully: "This thing hasn't gone far in a year?" ”

"Very, very far."

"And where did this come from?" Lin Kai asked curiously, pointing to the screen.

He Jun said dejectedly: "Can you ask something simple?" ”

Lin Kai's eyes were full of surprise: "You don't know either?" ”

"You think I'm omnipotent?" He Jun rolled his eyes wildly, "I knew it was definitely not far away...... Not far away on an astronomical scale. ”

The supernova that can be seen with the R eye in broad daylight is strange how far away from the earth, but it is not easy for him to be able to talk about this step with a half-understood second knife.

Although He Jun has explained what astronomical scale is, Lin Kai has received a traditional education, and the addition and subtraction of one hundred and eighty can be calculated, and the four-digit addition and subtraction can be used to kill him, and the four operations are not even mentioned.

This level of mathematics is not even comparable to that of later generations of elementary school students, and they don't know the size of a number like light years at all. He only knows that a light year is far away, and he will not be able to walk a light year without eating or drinking, and then he will not be able to walk a light year in the next life, and the next life.

I pondered for a long time and didn't come up with a reason. In the end, Lin Kai only held back one sentence: "This damn thing, it's not something that people can understand!" ”

He Jun thought so, and this sentence also reminded him that people can't count. Isn't there a thing that isn't human?

"Candle Hime, can the distance from supernova to Earth be calculated?" He Jun asked tentatively.

"Data Collection...... Reverse contrast of astral trajectories ...... "The main screen becomes a picture full of points of light.

"What the hell is this?"

"Star Map!" He Jun stared at the screen, watching the light on the screen move little by little.

It's not just one point that moves, but all the points that move, including many small dots of light that you can't see clearly.

He had a limited knowledge of astronomy. I didn't know much of the constellations, only the Big Dipper and Orion were recognized on the screen, but after a while, the entire star map became unrecognizable, and there was no longer a trace of familiarity.

How is this possible?

He Jun was stupid.

Anyone who knows a little about astronomy knows that the stars in the night sky are not fixed, but move at extremely high speeds all the time.

The star map on the screen was definitely a modern star map when it first appeared, and with the architectural style outside, he judged that this was probably a point in time in the near future, and it might even be the time and space where the ship was built.

But what's going on with this strange star map now?

The Flood Era is more than 10,000 years from modern times. But the starry sky is almost no different from modern times!

Although he couldn't tell whether Candle Ji's projection was to the past or the future, only from the changes in the star map, the time difference between this time and space and modern times was far more than 10,000 years!

Could it be that this is the future tens of thousands of years from now?

He couldn't describe how he felt.

He Jun has always been very curious about the future, but he never thought of traveling to such a distant future!

The characters in the novel often travel from ancient times to modern times, and they all seem to be mixed well, but the question is that this really happens, can the ancient people who travel to the modern era really be as comfortable as in the novel?

Joke!

Lin Kai is a typical textbook, this guy is not bad, and his brain is not lacking. The time traveled is less than a hundred years, but it is still out of step with the modern environment, and you must pay attention to the wording when talking to him, and say a little more modern terms. You have to take the whole sentence apart and explain it again.

If this is really the future tens of thousands of years later, the appearance of human beings is afraid that there is a clear difference between it and modern times, and as soon as he and Lin Kai "old bone dong" show up, they will have to be arrested, not sent to the laboratory for slicing and study, and they will have to be locked in a cage and exhibited around like gorillas.

He Jun secretly gritted his teeth, he couldn't get out of the spaceship if he was killed!

But will this hull be able to hold back the future people?

After thinking about it, he felt that he was too idle to C. In such a big city, there are no living people, not to mention the dead, and the dead can't see half of it, and it is obvious that the inhabitants here have gone into hiding because of the supernova in the sky.

Before the supernova disappears, the natives should not appear, and he must find out how the spaceship travels through time before the natives appear - Candle Ji says that there is no time machine on the spaceship, but the spaceship can travel through time and space, is it Candle Hime lying, or is there some unknown secret in time travel?

The more I thought about it, the more confused He Jun's mind became, but regardless of whether there was a time machine on the spaceship, the most important thing was that the spaceship could travel through time and space under the control of that damn emergency procedure.

As long as the emergency procedure is initiated, eighty percent can be crossed again, and the question now is how to C vertical this program to achieve accurate fixed-point crossing.

"Eh, don't move!" Lin Kai, who had been staring at the star map, said suddenly.

He Jun was stunned for a moment, and quickly asked, "Candle Ji, is there a result?" ”

"The calculations are complete, Scorpio-Centaur supernova, four hundred and twenty-four light-years away; The time of the outbreak was 2,000,000 BC; At the current time, 2,145,000 BC, the space-time coordinates were successfully located. ”

He Jun's eyes almost didn't pop out, what is the stalk of two million years BC?

"Candle Hime, is the calculation accurate?"

"Fifteen hundred years of error."

Is there an error in his grandmother? Fifteen hundred years is enough for several dynasties, okay?

He Jun was angry, but it was useless to get angry with artificial intelligence: "Are you sure it's two million years BC?" ”

"Sure."

This sentence seemed to drain He Jun's strength, and his body was weak and lay directly on the ground: "What's special, what's special is actually two million years BC?" ”

"What's wrong again?" Lin Kaihu asked suspiciously.

"What's wrong?" He Jun stood up and pointed to the screen, "There is a city outside, a city that is many times more advanced than our time, and this city is still a prehistoric city two million years ago, do you understand the prehistoric city?" (To be continued.) )