Supplies are insufficient...... Earth Radiation ...... Ninety-eight juvenile inmates...... Temporary wilderness survival course...... Acting strangely like Pike, Fin's brain is racing. Unruly, brave and fearless, Cool Boy Fen is like a folk hero among the teenagers of The Ark - he always disobeys the rules, but always escapes punishment. At this moment, the 17-year-old "child king" Fen looked at Pike on the podium, and felt a little strange inexplicably.

In his heart, a terrible conjecture suddenly arose that even frightened himself! And the more he thought about it, the more he felt that this was the case! Cold sweat broke out from his forehead......

Unbeknownst to Trist, his past reminders, unintentionally or deliberately, were not all useless, and the butterfly slowly stirred its wings......

"Murphy just talked about the role of clocks in indicating the time, so back to our topic, how to find direction in the field, here, I want to say that clocks can also be used to determine direction", Parker paused and continued: "We placed the dial horizontally of the watch, and the time of the watch was aimed at the approximate position of the sun, and then the position between the hour hand and the center of the twelve o'clock was south. Of course, this method only works in the northern hemisphere, and the southern hemisphere has to be north. ”

"Does anyone know why?" Pike impromptu asks questions to reinforce the children's impressions.

"The earth rotates 360 degrees in 24 hours and 15 degrees in an hour, and the hour hand of a watch always rotates twice as fast as the sun. At 6 o'clock in the morning, the sun is in the east and the shadow points to the west, at this time, the hour hand on the watch points to the sun, and the word '12' on the dial points to the west, if the dial is rotated 90 degrees, that is, it is folded in half at 6 o'clock, so that the word '3' on the dial is facing the sun and the word '12' points to the north; at 12 o'clock at noon, the sun is located in the south, and the 12 is folded in half, so that the word '6' on the dial is facing the sun, then the word '12' still refers to the north. Murphy uncharacteristically raised his hand and returned to the road.

Not surprisingly, the friends around him looked at him with admiration, which made the bear child very useful. Murphy sat down triumphantly, the knowledge Trist had poured into his brain with his fists, and now he had the opportunity to be proud of a room full of his peers. Just thinking of Trist, Murphy was a little gloomy.

It's a pity that with Murphy's tendony head, he didn't suspect these coincidences at all.

Pike nodded, but didn't speak.

"--Pike! Parker! I have a discovery...... The shell of the Ark space station is not completely insulated from space radiation...... But except for the first generation, you, me, and the younger generations who were born after us did not have a radiation reaction...... Born on the space station, it is likely that we have completed the evolution of adapting to the environment...... You said that it will take another hundred years for the surface radiation to dissipate, so how does the intensity of surface radiation compare to space radiation? Will...... If! I mean what if! Will we be able to withstand space radiation enough to survive in the Earth's radiation environment after a hundred years of ecological restoration? He couldn't help but think of Trist's bold conjecture (spoiler) when he mentioned Earth before, he looked at the children who were about to be sent out in three weeks, and silently said in his heart, 'Trist, I hope you are right this time, just like you are ......always right'

"In addition to this, we have some other methods, the simplest, observe the sun, the sun rises in the east and sets in the west, and observe the sunrise and sunset, which can see a general direction. This is followed by the observation of the branches and foliage of the tree, which is lush on the south side and sparse on the north side or the burrow of the ants with the entrance facing south. Similarly, there is the observation of the rocks, with the mossy side on the north side and the dry and bare side on the south side. Or erect a pole vertically on the ground, with the shadow pointing northwest in the morning and northeast in the afternoon, which is what the Seris call 'immediate', and finally if it's at night, I suggest you observe Polaris, the bright star at seven times the distance at the end of the Big Dipper is Polaris, and directly below it is due north......" Pike summed up as he replaced the pictures of Polaris, some taken from the space station, and some from the ground before the nuclear war a hundred years ago, which have been kept in the Ark's database.

。。。。。。

Climbing up a high slope of forty or fifty meters had wasted too much time for Trist, and from the high ramp in front of him to the path of the center of a nuclear explosion a hundred years ago, he was ready to slide straight down.

Due to the existence of the high slope where he is located and the mountain wall next to it, the warm current blowing from the sea to the east forms a foehn effect under the mountain wall, and the transpiration of the sacred lake forest gives rise to a mysterious fog swamp that appears wet and warm, forming a wetland terrain of swamps, tidal flats, silt, and a fog that lasts for many years.

From the high slope downward, due to the isolation of the warm wind from the sea and the southern monsoon, due to the action of high latitudes, large areas of permafrost are formed.

Trist once wanted to bypass this nuclear crater with a radius of four or five kilometers and a depth of thirty or forty meters, but to the east of the crater was a rugged mountain road of hundreds of meters......

Anaconda scourge!

This is Trist's discovery at the westernmost point of the nuclear blast site. He found the remains of a chemical plant in the far west, and he could even vaguely make out the plant's huge chemical storage tank, although it was uncertain what the chemical plant produced before the nuclear war, it was definitely inextricably linked to the giant creatures in the mysterious fog swamp. In addition, the white mist of the Misty Swamp is poisonous, and although it is not as good as the "acid mist", the weapon of the mountain people, it can also cause dizziness and swelling in the limbs if inhaled for too long.

Large and small pythons occupy Trist's sight, two-headed, three-headed, four-headed and even nine-headed ones, abound. They tangle with each other in the ruins of the chemical plant, spitting snake letters, their colorful scales intertwined, and the sight of squirming is sure to make people with dense phobia vomit on the spot.

Trist wasn't much better, his face turned pale, and he quickly left the place. At the same time, he found giant footprints on the ground, which made him even more vigilant.

Before I knew it, it was night, and thinking that I was camping under the noses of these pythons last night, Trist suddenly broke out in a cold sweat, and I don't know whether to be afraid or happy...... That night, Trist made two easy sleds and camped on a high slope away from the snake cave.

It was just the middle of the night when there was a tremor on the ground. Trist, who slept in a warm dress, jumped to his feet and found the owner of the day's footprints.

The boy was stunned and looked at the cold yellow vertical pupils of the prehistoric giant crocodile......

This giant crocodile was about the size of Trist's cabin in the Red Maple Tribe, and its two vertical pupils were like two large lights in the night.

Trist dodged the crocodile's first blow by instinct.

The huge claws stepped on the burning bonfire, and the thick scale armor well protected the flesh inside, and the bonfire was quickly extinguished, but the python was unscathed.

Trist: "...... beasts are afraid of fire, and they are all deceitful!"

The corners of Trist's mouth twitched, and without saying a word, he didn't want the tent, he put on his bag, and jumped down against the tundra in front of him on the simple sleigh he had made during the day.

The persistent giant crocodile seemed unwilling to let its prey run away in vain, and as if it did not perceive the danger in front of it, it jumped down against the ice field in front of the high slope.

。。。。。。

"Even if there is no radiation, in the past hundred years, the animals and plants of the earth may change greatly, not to mention the promotion of radiation, these animals and plants will produce more terrible mutations", Pike said of the radiation mutation of animals and plants, "No matter what, your purpose is only, and there will only be this one, that is, to live, do your best to live!" ”

"But Mr. Pike", there are also children on the other side who asked, "The surface radiation will not be dissipated in a hundred years, and by the time the Ark can return to Earth, we will have already become meteors in the universe (the corpse was ejected from the Ark by the airlock)......", this time it was Fen who raised the question, and Fen seemed to mean something.