"You see the end of the cable? Then, is there anything tied down there?" Zi Yang asked with his eyes wide open. In his mind, it must be a very heavy object that can drag this excavator into the water.
Su Rui shook his head: "This is the strange place. The end of the cable has been disconnected. From the appearance of the fracture, it seems that... it was bitten by something."
"Are you sure?" Jin Guoqiang said with a frown. He had read Su Rui's materials and knew that she had a degree in physics. Common sense and judgment should be no problem, but the thick steel bars of the fingers were bitten off—this is also incredible. .
Su Rui hesitated, "I'm not sure, but I have carefully observed the incision, and it does not look like it is stretched or cut off."
Jin Guoqiang groaned, "Something that can break such a thick steel bar must be a giant. Is there such an underwater creature in nature?"
Su Rui groaned, "As far as I know, there is no-at that time, my intercom was out of order and the helium gas was immediately used up. A slight nitrogen drunk appeared, which might affect my judgment."
"For safety, I advise you to give up detection. Professor Zhang and the others hurried away at the beginning, which also shows that they may be in danger underwater." Jin Guoqiang said seriously.
"However, I have already seen the bottom of the pool, just a few meters below the steel cable. If I go down again, there will definitely be more discoveries." Su Rui said with some regret.
"But we don’t have enough air bottles now, so I can’t dive again." Although Zi Yang said so, there was a sense of relief in his heart—not that I was afraid to shrink, I had tried my best to do it, but Things backfired.
It's also a relief to find a reasonable excuse for your failure.
But Su Rui didn't seem to understand Zi Yang's "diligence", and instead said seriously: "It is not enough for two people to go back and forth, but one person is still fine."
"How can it be done? Didn't you say that you can't dive alone." Zi Yang tried to dissuade Su Rui.
"Actually, we still have a set of diving equipment." Su Rui said, "When preparing the equipment this time, I did not expect to dive so deep, so the air cylinders and helium cylinders prepared were not enough. But before the Columbia University A friend sent me a set of samples of scuba equipment. I also brought it with me. This set of equipment is very advanced. Even beginners like Zi Yang can use it to dive to deep places, and the battery life is very long. Long, don’t worry about running out of air."
"This..." Zi Yang heard what Su Rui said, and could no longer find an excuse to shirk, so he could only ask for help as if to look at Jin Guoqiang.
Jin Guoqiang looked up at the sky and murmured, "It looks like it's going to rain heavily."
Sure enough, the sky was still clear in the morning, suddenly dark clouds, it seemed that a heavy rain was about to come.
Lao Wang's voice suddenly came from the walkie-talkie, "Hey, hello, hello, Lao Li! It looks like it's going to rain heavily, Brother Xiaosha said that it is not safe to continue climbing, suggesting that we return, what's your opinion?"
Jin Guoqiang took the walkie-talkie out of his backpack and handed it to Zi Yang.
"Okay, I think so too, how soon will you be able to return to the camp?" Zi Yang said to the walkie-talkie.
"At least two or three hours, oh my god, climbing a mountain is too tiring!" Old Wang exploded in the walkie.
"We are almost the same, then you come back quickly, everyone gather at the camp, pay attention to safety on the way."
Zi Yang lied to the end without blushing or panting, turned off the walkie, and looked at Su Rui and Jin Guoqiang and said, "Should we do this today? Let's go back to the camp and discuss it later?"
Jin Guoqiang and Su Rui nodded together. When everyone packed their equipment and returned to the camp, the sky was already dark clouds and thunder and lightning. Zi Yang looked at the location covered by the thunderstorm, which was exactly the "climbing route" he and Su Rui chose-if they did go climbing.
"Hey, Lao Li, are you crossing the robbery? Be careful of being struck by thunder!" Lao Wang didn't forget to joke with Zi Yang at this time.
"You don't have to sneer anymore, now you still dare to use the walkie-talkie to talk, and be careful that thunder strikes you!" Zi Yang turned off the walkie, looked at Su Rui and asked, "Will you be hacked when you call in a thunderstorm?"
Su Rui pursed her lips and smiled: "No, the wireless frequency of the walkie-talkie is lower than that of visible light, and basically does not cause air ionization."
"Strange, then why do I always hear that I don't want to use my mobile phone to make calls on rainy days? Is this a rumor?" Zi Yang said ignorantly.
Su Rui smiled and said: "If the phone can attract thunder and lightning, the danger of turning on the lights is even greater. The only thing you need to pay attention to when calling in a thunderstorm is to speak loudly, or you can't hear the other person."
Zi Yang smiled awkwardly and scratched his head. Jin Guoqiang was not moved by their jokes. He looked up at the sky with a sullen face, "I'm going back first, I don't know what happened to Wang Juan. If you have something, you know where to find it. I."
"Wait a minute." Su Rui took out some chocolate and compressed food from their luggage and put it in a plastic bag and handed it to Jin Guoqiang.
"This is for you."
"Thank you!" Jin Guoqiang took over Su Rui's things and said gratefully. After thinking for a while, he stopped talking, turned and walked out of the yard.
Seeing Jin Guoqiang's figure disappearing in the distance, Zi Yang and Su Rui looked at each other, repacked all the diving equipment in the box and locked them to avoid being discovered by Xiaoli and Xiaosha.
"Xiaohei, can you go out and see if you can catch some game and come back?" Zi Yang instructed Xiaohei.
Xiao Hei turned around and walked out.
"Come back when it rains! Don't wander around!" Zi Yang shouted behind Xiao Hei. Seeing Xiao Hei's back disappear, Zi Yang turned his head and looked at Su Rui. The two finally had a rare time alone. .
Su Rui did not notice Zi Yang’s “eager” eyes, pointing to a suitcase and said: “This is the underwater drone we bought before. It will be used next time deep dives, but it is still on the ground. One person needs to operate remotely."
"Ao." Zi Yang said disappointedly, it seems that Su Rui still has to go deep dive once.
"Also, I will teach you how to use this recirculating underwater breathing apparatus while Lao Wang and the others are not back." Su Rui dragged a large box out of his luggage. Open the code lock and open the box, revealing a set of black respirators.
Different from the underwater breathing apparatus that Zi Yang has seen before, this set of breathing apparatus is more compact. There are no bulky oxygen cylinders hanging on the outside. There are three small fire extinguisher-sized bottles on the back, which are set in a black plastic cover. The thick tube is connected to the mask through the cover.
"Is there a manual for this thing?" Zi Yang couldn't help but become curious when he saw that there was a head-up display on the rebreather.
"There is no manual, this is a test product, there is no industrial mass production." Su Rui shook his head.
"Tsk tsk, isn't that cheap?"
"Well, it costs tens of thousands of dollars. A friend from Columbia University sent it to me in the hope that I can help them program."
"Programming? Does this thing need to be controlled by a computer?"
"Yes, the working principle of the rebreather is to operate by breathing its own air repeatedly. The exhaled carbon dioxide passes through a sodium hydroxide filter tank. The carbon dioxide reacts with sodium hydroxide and calcium hydroxide to form calcium carbonate, which produces new oxygen. Therefore, the exhaust gas can be recycled.
Friends from Columbia University use lithium hydroxide to filter carbon dioxide—although it is dangerous, it is much more effective than calcium. Therefore, the oxygen cylinder that needs to be carried does not need to be so bulky. "
Su Rui flipped the cover and pointed to a bottle and said: "This is a spare oxygen tank, which can inject fresh oxygen into the breathing circuit. The sensor monitors the gas composition and concentration in the respirator, and then controls the breathing circuit through a microprocessor. The oxygen concentration and nitrogen content in the water. Different adjustments are made according to the depth of the dive-these need to be controlled by precise procedures.
Because nitrogen is kept to a minimum, the complexity of decompression is reduced a lot, so you can dive deeper and stay underwater for longer. In theory, a skilled person can stay underwater for more than 20 hours using this rebreather. "
After listening to Su Rui's introduction, Zi Yang was speechless: "Sure enough, science and technology are the primary productive forces. This kind of high technology sounds scary."
Su Rui smiled and said: "In fact, this is just a very conventional technology. The nano clothes we have used before are the real ultra-era products. It's a pity..." Su Rui frowned when he said that, as if thinking of something. thing.
Zi Yang was also stunned when she said that the nano-clothes were taken. The nano-clothes they had pierced in the underground abyss later did not know who took them away.
Zi Yang suddenly thought of Saiya. It is said that this guy hasn't appeared for a long time, is it really dormant and not awake
The two thought of their own thoughts, no one spoke for a while, and the air suddenly fell silent.
At this moment, the walkie-talkie in the Zi Yang bag rang: "Lao Li, something has happened!" Lao Wang shouted in panic.
"What's the matter?" Zi Yang shook his heart. Seeing the leaves rustling from the wind outside, the clouds above Qinhan Village were densely covered, and it was vaguely visible that the mountains in the distance were already shrouded in the rain curtain—this torrential rain came so fast, Pharaoh. Shouldn't they encounter any accidents
After coming over for a while, the walkie sounded again, and the old Wang shouted breathlessly: "Xiao Li slipped and fell when she went down the mountain, rolled over a dozen eggs, and her feet were crippled and she couldn't walk."
"Give me the coordinates and we will pick you up!"
When Zi Yang and Su Rui ran to the river across the valley, they saw three figures slowly moving towards this side from a distance, and a rain cloud was chasing them behind.
Zi Yang looked down at his feet. The river was about to rise to the bridge. Standing on the bridge, looking far away, white waterfalls on the mountains rushed down in the distance, converging into the river water at the foot of the mountain, the originally calm river water slowly The earth rushed.
Zi Yang and Su Rui rushed to Lao Wang and the others, only to see Lao Wang carrying Xiaoli on his back, and the handsome brother carrying three people's equipment.
Zi Yang saw that Lao Wang was already panting, and quickly took Xiaoli over and carried him, and Su Rui also took some of Xiao Shao's luggage.
"Hurry up, the bridge floor is going to be flooded!" Zi Yang urged everyone.
A group of several people ran towards the river.
"Xiaoli, how are you?" Zi Yang asked anxiously as he ran.
"The foot hurts terribly!" Xiaoli cried.
After running across the bridge, Zi Yang's speed gradually slowed down-after a rush, his physical strength began to weaken, and his legs trembled violently.
Although Xiaoli is only about ninety kilos, it is really hard to sprint with her on her back, Zi Yang panting loudly.
Nimbus finally caught up to them, and the pouring rain instantly drenched them into a drenched chicken. He couldn't see anything in front of him, and it was even harder to march.
"I'm here!" The old Wang slowly recovered a little energy just now, and took Xiaoli over, everyone speeded up, and after a cigarette, everyone finally rushed back to the camp in embarrassment.
At this time, the entire Qinhan Village was shrouded in heavy rain, and the raindrops were almost connected into a line, rustling on the leaves and the ground, and the world was hazy.
Lao Wang placed Xiaoli lightly on her, and sat down on the ground, looking up at the crowd.
"Huh, where's Xiao Hei?"
Zi Yang was taken aback, and he thought to himself: "Yes, what about Xiao Hei who went out to fight the rabbit? Why hasn't he come back?"