Einstein was asked, "What is the theory of relativity?" Einstein replied, "You sit next to a beautiful woman for an hour and it feels like a minute, and in summer you sit by the fire for a minute and it feels like an hour, that's the theory of relativity!"

But at this moment, Cheng Xiaoyu is sitting by the summer fire, accompanied by a beautiful woman, this situation makes the memory more profound, for Cheng Xiaoyu and Su Yuxi, this experience changed the trajectory of their lives, and made their life that should have been a little dull start the magnificent waves under the storm. Pen "Fun" Pavilion www.biquge.info

But no matter how sweet it is at the moment, Cheng Xiaoyu will eventually face the embarrassment of reality, and they must struggle to survive.

Su Yuxi did her best to make a complete plan to reduce Cheng Xiaoyu's damage, which was the only thing she could do at the moment.

She first asked Cheng Xiaoyu to prepare for the worst, and repeatedly emphasized the importance of posture, "You must be highly tense in your mind, even if you fall, you must adjust your posture in the air, and if you are defenseless, a drop of two meters to your head is enough to kill." ”

Of course, Cheng Xiaoyu knew the danger, but he never thought about what kind of danger it should be, when Su Yuxi told him nakedly that the shock of the impact of the fall would be conducted along the contact point to the internal organs, and then cause the rupture and bleeding of the internal organs, which could be fatal in severe cases, and extensive fractures could also occur, Cheng Xiaoyu was a little chilled, but he was not afraid at all, although he was very nervous, and he didn't want to die at all, but he knew that this was the responsibility he had to shoulder.

Su Yuxi learned physical skills from Wang Huasheng, and specially designed a set of landing movements, she taught Cheng Xiaoyu to jump down from the off-road vehicle to practice landing movements, and did not release Xiaoyu until a conditioned reflex was formed.

Su Yuxi watched Cheng Xiaoyu complete the action meticulously, she cared more about his life than Cheng Xiaoyu, "You must open your body and straighten it, but you can't lock the joints, people landing from a high place is a process in which gravitational potential energy is converted into kinetic energy and then absorbed by the human body." The human body absorbs energy through the deformation of joints and the eccentric contraction of muscles. ”

But Su Yuxi also knows that simply doing this action is not very meaningful, she has made detailed calculations, assuming that Cheng Xiaoyu's weight is now 60kg, he can fall from a height of 5m to the concrete floor with a perfect action and not do a rolling action, so all the energy is borne by his legs. Ignoring factors such as air resistance, Cheng Xiaoyu's fall from a height of 5m is a process of converting gravitational potential energy into kinetic energy, which is then absorbed by the thigh muscles through contraction.

Through the simple energy equation, we can get the total energy value that Cheng Xiaoyu needs to absorb when he lands on his thighs this time: e=mgh=60*10*5≈3000J (for the convenience of calculation, the gravitational acceleration g=9.8 will be ≈10)

Here Su Yuxi has to rejoice that Cheng Xiaoyu's weight has lost very much now, falling from a high altitude, the lighter the weight of the creature, the lower the damage, don't underestimate the weight of dozens of kilograms, this is enough to kill people. But whether Cheng Xiaoyu's thighs can withstand 3000J of energy, Su Yuxi needs a more quantitative indicator.

Here Su Yuxi introduced an action in fitness: weight-bearing squats. Because the descending process of the standard squat movement is very similar to the process of thigh contraction after landing from a high place.

During the whole movement of the weighted squat, the height of the barbell changes by l=1m. So how many kilograms of weight-bearing squats does Cheng Xiaoyu need to do to get the 3000 joules of energy? Assuming that the mass of the barbell is x, there is a formula: (x+m)gl=e=mgh, substituting the data, solving the equation, you can get x=240kg, that is, in order to withstand the potential energy of falling 5 meters, Cheng Xiaoyu's legs must be able to support 240kg of squats!

But what about reality? People who don't weigh 60 kilograms can do 240 kilogram squats. A weightlifter can do squats of more than 100 kilograms at most, not to mention our Cheng Xiaoyu, a master who doesn't like to exercise.

In fact, Su Yuxi wanted to wait until his foot injury was completely healed, and he was more sure that he would go up by himself, but he didn't have time to do so.

The limit distance for doing evasion actions is five meters, and it is useless to do any action at a high level, but after Su Yuxi designed a cushion, such an action will become a very effective protection.

It's a pity that there are too few things to use on the first floor, and she has tried her best to fill in the elevator shaft with scattered tables and chairs, but in fact it is not very high. It's a pity that the chairs on the car can't be removed, otherwise hundreds of car seats might fill the entire elevator shaft.

She managed to pile up two wooden tables in the elevator shaft that could be put in, and the two tables were stacked on top of each other, and a small gap was sawed out at the same position on each table leg, so that the table could be effectively unloaded even if it broke at the moment of stress.

Finally she took apart all the cushions she could muster, sewed a thick cushion, and spread them on top of the table.

Su Yuxi also fixed a flashlight on the hat of the security guard for Cheng Xiaoyu, so that the lighting would be better when he climbed, and there was not much Su Yuxi could do, and the rest could only be left to fate.

Cheng Xiaoyu stood on the table, put on gloves, and grabbed the steel cable in the elevator shaft, fortunately there was a steel cable, otherwise there was no way to climb, he supported the wall with his feet, grabbed the steel cable with both hands and began to climb up.

When Cheng Xiaoyu began to climb, Su Yuxi repeatedly told Cheng Xiaoyu below: "Brother, if you fall, don't panic, you must fall according to the actions you have been taught." ”

Miki Morimoto and Jun Aso also came to see Cheng Xiaoyu's adventure plan this time, Cheng Xiaoyu put on gloves and pinned the emergency contact system to his waist and began to grab the steel cable to climb up, in fact, the difficulty of going up is not very great, the main customer service is physical fitness and psychology.

Cheng Xiaoyu climbed for a short time and comforted: "It seems that it is not so difficult to climb up." "He didn't look down because he had a fear of heights. But in reality, the situation was much more dire than he imagined.

Even with gloves Cheng Xiaoyu felt that his palms were burning, like a fire, although he had only climbed to the minus second floor, but he was already sweating like pulp, he had already considered climbing from the minus second floor, but standing at the elevator entrance was really out of reach of the steel cable, so he could only start climbing from the minus third floor.

Maybe this kind of difficulty may not be very big for special forces, but for Cheng Xiaoyu, who is not very athletic, it is really a very big test. It's not just physical torture, it's also the torture of willpower, he didn't give up this option, and his life is not so lucky.

He didn't look down the whole time, for a man who was a little afraid of heights, such an act really required a lot of courage, he felt that his body had reached its limit, like doing hundreds of push-ups, what allowed him to hold on was only a willpower to save his sister.

Su Yuxi has run to the second floor to help Cheng Xiaoyu light, the height of the three underground floors is about six meters, and the depth of the elevator shaft on the third floor of the underground must be about 20 meters, although the height of the bottom is reduced by a little, but you must know that in the construction of the project, the safety height is 2 meters, which means that the construction of more than two meters must wear a safety belt, and the safety protection must be in place!

One can imagine how dangerous Cheng Xiaoyu is, even after making so many preparations, he is still fighting against death.

Cheng Xiaoyu climbed to the top with the supreme power of sister control, and it should be the elevator above him. He didn't dare to touch it, afraid that if the elevator fell, he would be able to hit the gg.

Cheng Xiaoyu grabbed the steel cable with one hand and supported the wall with both feet, then carefully took out the emergency contact system from her waist, and began to search for signals according to the method taught by Su Yuxi, but to his disappointment, he tried to send a few more messages, and then insisted on changing it to a mobile phone to search for signals, and it still showed "outside the circle".

Reluctantly, he changed the emergency contact system, but God did not favor him. After staying on it for a long time, his arm was first sore, and then uncontrollable numbness, which forced him to abandon this adventure.

The process of going down is not much easier, because it is a steel cable, he can't use the action of sliding, he can only move down honestly, his physical strength is too strong, the whole hand and legs are sore, basically no strength at all, according to our common words is "the whole person has been hollowed out."

When he cautiously arrived on the second floor, there was a sudden "clang" on it, and then the steel cable trembled, Cheng Xiaoyu looked up, and the elevator made a "creaking" sound, and the thing he was most afraid of happened.

Because of his climbing, the elevator began to fall, Cheng Xiaoyu's mind suddenly went blank, he didn't know what to do, he was afraid that if he moved, the elevator would fall down immediately.

Su Yuxi has been paying attention to the situation in the elevator shaft. When she heard the sound of the elevator, she immediately shouted: "Brother, remember what I said, you hurry up and jump down." ”

Cheng Xiaoyu also knew that this was not the time to hesitate, and he couldn't leave anything to chance, his heart tightened, and he followed Su Yuxi's instructions without thinking, closed his eyes, turned around slightly and jumped down.

Fortunately, Su Yuxi let him practice landing hundreds of times, Cheng Xiaoyu's muscles instinctively made the best movements in the air, and the moment he touched the mat, he lost consciousness. Because the height is about nine meters, that is, about jumping down from the fourth or fifth floor, it is impossible to avoid injury even if the movement is beautiful.

He had the courage to jump down, which was also completely out of unreserved trust in Su Yuxi.

It was also thanks to him that he listened to Su Yuxi without hesitation, and when Su Yuxi dragged him out of the elevator shaft desperately, the car was immediately accompanied by the body of gold and iron, and it smashed down with a bang, and the things under the cushion were compressed by two-thirds of the volume.

Su Yuxi probed Cheng Xiaoyu's snort, it was normal, and looked at his legs again, there was already bruising and swelling, but there was no fracture to pierce the skin, so it looked like a closed fracture, Su Yuxi took iodine wine and began debridement, identified the tissue that did not have necrosis, and then put a small splint and plaster bandage on Cheng Xiaoyu's two legs.

It can only be said that all this Su Yuxi did was not in vain, not only saved his life, but his injuries were not life-threatening, but he just fainted temporarily.

Miki Morimoto and Jun Aso couldn't help much, they could only scream just now, and now they can only watch. When Su Yuxi had finished handling everything, Jun Aso helped Su Yuxi carry Cheng Xiaoyu onto the simple stretcher they had made themselves and send him to the second floor.

When Cheng Xiaoyu woke up again, she didn't know how long it had been, but when she opened her eyes, she saw Su Yuxi resting his head on her knees a little like she had done that day. But Cheng Xiaoyu didn't want to feel such warmth, he only felt pain all over his body at the moment, especially his legs, the kind of pain that pierced his heart made him can't help but want to scream, but he still bit his lip and held back, but the trembling of his body still woke up Su Yuxi.

Su Yuxi opened her eyes and looked at Cheng Xiaoyu, who was pale, and said, "Brother, does it hurt?"

Cheng Xiaoyu reluctantly said: "It's okay, a little." ”

Su Yuxi said: "This kind of time is not the time to pretend to be a man. After speaking, Su Yuxi brought Cheng Xiaoyu the anti-inflammatory drugs that had been prepared a long time ago, anti-inflammatory drugs and anti-blood stasis and blood stasis medicine to Cheng Xiaoyu, and then said: "The luck is good, it's just a fracture, and it's not life-threatening." ”

Cheng Xiaoyu smiled bitterly and said, "But there is no useful information in exchange." ”

"At least tell us that this road is not going to work! Don't think too much, take care of your injuries. Su Yuxi comforted.

Cheng Xiaoyu said apologetically: "I don't care if I don't want to, but you don't ......... either."

"Brother, there will be a way, I guess Yoshimoto must have mastered the way to get out in the end, but I really can't think of what the method will be. ”

"Yoshimoto is really a building maintenance worker, he must be very familiar with this building, maybe he has some forgotten passage in mind, such as ventilation ducts?" Cheng Xiaoyu said bitterly, feeling slightly better after taking the analgesics.

Su Yuxi shook his head and said, "No, I have already checked, and the underground ventilation system cannot allow people to enter and exit." ”

Cheng Xiaoyu looked at Su Yuxi's tightly knit brows, a little distressed, and began to search from his memory to see if there was any useful information, but he couldn't think of anything missing.

Su Yuxi fed Cheng Xiaoyu some snacks again, Cheng Xiaoyu didn't want to eat it, but he couldn't resist Su Yuxi, so he could only eat a little.

When Su Yuxi left Cheng Xiaoyu to see the situation of Kitagawa Yoshito, Cheng Xiaoyu was a little scared when he was lying alone in the off-road vehicle, and his heartbeat began to intensify. Although there was a faint light from the emergency light, the dim light made him panic even more. At this moment, he only felt lucky when he recalled the situation in the elevator shaft, and he didn't feel that there were too many things he didn't dare to recall. But he still didn't have the courage to remember even a little bit about the guardhouse.

When Cheng Xiaoyu was frightened, when he heard the footsteps, he couldn't help but shout loudly: "Xiaoxi?"

"What's the matter, brother?" replied Su Yuxi.

Hearing Su Yuxi's voice, Cheng Xiaoyu's rapid heartbeat calmed down, he concealed the fact that he called Su Yuxi's name because he was afraid, and asked pretendedly: "After the car fell down just now, was it open above?"

"Unfortunately, there are not many stones that fell down with the car, and it seems that they are also buried. ”

"Hey, if you change the elevator shaft, maybe there's still a chance. Speaking of this, Cheng Xiaoyu seemed to have caught some flickering aura.

Su Yuxi frowned and said: "It should be a similar situation, after all, the elevators are all built in the center of the building, in fact, I shouldn't let you take this risk." ”

When Cheng Xiaoyu heard the word elevator, the answer in his heart was finally coming out, and he shouted regardless of the pain, "I know, I know what method Yoshimoto really has mastered to leave the building!"

(Thank you for the 20,000 reward of Yuansheng Gly, thank you for my five-year reward, thank you for the reward of the Three Realms Rubik's Cube, thank you for the support of each starting coin, and monthly passes, recommended support, Qingshan will give back to everyone with stable and high-quality updates, thank you!) (To be continued.) )