The opening ceremony is urgent, the time to prepare before and after is less than half a month, and the scale is not small, some song and dance performers from the civilian recruitment is too late, Chen Xu specially asked the lieutenant's office to select and sponsor the soldiers of the two schools, according to the military drill to prepare a collective sword dance exercise, in order to enhance the lively atmosphere of the opening ceremony, Chen Xu also took the time to go to the scene a few times to do on-site guidance.

As a teenager in the new era who has been doing radio gymnastics since he was a child, he has a natural attribute to strengthen the aura of parade and collective activities, and the forbidden army of the 2,000 Lieutenant's Mansion has long been accustomed to the march of the forbidden military columns, so it is not difficult to guide, the main thing is to be in the vertical and horizontal queue and sword dance moves, not to be fancy, but to seek uniform movements, to show the fierce and ferocious momentum of the army.

After seven or eight days of training, the show already looks good.

After entering the summer, the weather is cloudy and uncertain, this day, the morning is still sunny, but before the time comes, the weather begins to become gloomy, there are rolling dark clouds in the southeast from the southern foot of the undulating Taiyi Mountain, it seems that a rainstorm is coming.

After the dispersal of the dynasty, Chen Xu took a carriage and went straight to Keju Field, intending to test the collective drill of the two thousand forbidden troops again.

"Boom~~"

In the rolling dark clouds, there was a sudden earth-shattering thunderbolt, a lightning bolt that brightened both sides of the Wei River, accompanied by a loud noise, and suddenly the river wind was agitated, and the raindrops of beans crackled in the howling wind.

"Quick, speed up and go to Keju Field to take shelter from the rain!" Seeing that the rain was approaching, the leader of the guards yelled and urged the coachman and a group of guards to speed up.

"Thorn~~"

"Boom~~"

The rainstorm is coming, accompanied by the trembling lightning and thunder, the sparse rain instantly poured down the bucket, just two miles away, Chen Xu's carriage was wrapped in the torrential rain before it arrived at the Keju field, and the pedestrian caravan on the road was also panicking everywhere looking for a place to shelter from the rain, and the world was instantly shrouded in the pouring rain.

In the midst of the torrential rain, one after another lightning flashed densely in the rain curtain, and a continuous thunderstorm sounded overhead and around the city, only to shake the hearts and gallops of the people, and the horses riding and pulling the carts also screamed in terror, spreading their hooves and galloping wildly in the torrential rain.

"Sting~~Boom~"

A bright and blind thick lightning from the sky fell on the highest eaves in the southeast of the Keju field, only to see a bright fire in the rainstorm in the sky above the Keju field, crackling electric light rushed and splashed bricks and stones from the sky to fall down, inside and outside the Keju field instantly sounded countless frightened screams and even howls, the people who were sheltering from the rain around the Keju field all scattered with their heads in their hands, and suddenly the whole Keju field was in chaos.

"咴~~~"

The sudden earth-shattering thunderbolt frightened all the dozens of horses out of control, scattered in a panic in the neighing, and Chen Xu's team was in chaos in the rainstorm.

"Thorn~~Boom~~"

The lightning seemed to find a best place to start, followed by four or five bolts of lightning one after another and slashed on the top of the Keju field, and in the roar of the sky and the earth, the lightning at the highest point of the Keju field gathered into a dazzling fireball, and the bricks and stone sawdust flew in all directions, as if the end of the world had come.

"Master Hou, Thor is angry, hurry back to the city!" A group of guards rushed up and forcibly controlled Chen Xu's carriage, and the leader of the guards opened the door and yelled in horror with a pale face.

Thunder your uncle's god!

Although Chen Xu was also frightened, he did not panic after getting out of the car, standing in the torrential rain and watching the lightning and thunder as if he had stabbed a hornet's nest, there were thousands of Erha howling in his heart.

Nima was so careless that she forgot to install a lightning rod when building such a tall building.

"Quickly escort Hou Ye to shelter under the tree!" The leader of the guards roared and ordered a group of guards to lift Chen Xu's legs and run wildly towards Xianyang.

"Stop~ Don't go to ......" Chen Xu's face instantly turned pale and struggled.

Dogs' days are a group of rammers who don't understand science, and don't they hide under a tree in such a violent lightning rainstorm......

"Boom~~"

Before Chen Xu's words fell, a bolt of lightning smashed on a big tree not far ahead, and in the crackling firelight, a big tree more than ten feet high broke and fell down.

"Huh~~" A group of guards were so frightened that they almost knelt on the ground en masse, and Chen Xu was also thrown into a puddle of muddy water.

"Go to the shed over there!" Chen Xu was also so frightened by this thunder that he almost peed his pants, got up and went straight to a shed not far away.

Lives matter, and this group of primitive people cannot be counted on.

When Chen Xu panted and ran to the shed, the whole person had been drenched in soup, covered in muddy water and still flowing down his hair and clothes, and the people and some craftsmen and craftsmen who were sheltering from the rain in the shed naturally recognized Chen Xu, and quickly let go of a large open space, and someone brought dirty linen cloth to help wipe the muddy water on his body.

"Hou Ye, Hou Ye~~" A group of guards and horses and carriages couldn't take care of it, and even the rolling and climbing ones all arched in, and surrounded Chen Xu in the middle with a pale face.

"Boom Boom Boom~~"

In the torrential rain that poured into the sky, the lightning and thunder were still raging in the sky over the Keju field, and the entire Keju field was shrouded in a piece of electric light and fire, the sky trembled, and the thunder and fire were all over the sky, such a violent scene could be seen clearly even in Xianyang City a few miles away, and this terrifying scene also made the entire Xianyang fall into extreme panic.

"Master Hou, is the Keju field a bad location that angered Thor?"

Everyone in the shed gathered around Chen Xu with frightened faces, watching the dense lightning and thunder in the sky.

"You don't have to be afraid, the rainstorm and thunder and lightning are natural phenomena, not the wrath of the gods, it's just that the Keju Field is too high!" Chen Xu shook his head with a twitch.

"Newspaper~~"

A Xuanwu guard rushed into the Zichen Hall soaking wet, and knelt at the door with a pale face to report: "Your Majesty, the thunder god is angry, and the thunder and lightning strike in the Keju field caused a fire!" ”

"What?" Before the next dynasty returned to the palace, Qin Shi Huang, who was numb by this terrifying thunderous scalp, was instantly shocked.

The Keju field was built under the auspices of Chen Xu, costing hundreds of millions of dollars and taking more than two years, the last time I went to see the Keju competition, it was okay, why did Thor suddenly get angry and bombard the Keju field with thunder and lightning.

Can't this Keju field be repaired? Or maybe the last time he toured the southeast to meet the monks of the immortal family, he brought disaster to Daqin......

"By the way, where is the Marquis of Qinghe right now?" Qin Shi Huang suddenly remembered something.

"Back to Your Majesty, after the dispersal of the dynasty, the Marquis of Qinghe went out of the city and went to Keju Field!" Xuanwuwei replied.

"Huh!? How is this good? The emperor's face turned pale instantly, and he hurriedly took a few steps back and forth above the main hall and ordered loudly: "Quick, arrange for someone to go to the Keju field to see the Marquis of Qinghe?" ”

"Yes, Your Majesty!" Xuanwu Wei stood up and turned away.

Now the whole Xianyang rainstorm is pouring, and the south bank of the Wei River looks like falling into a sea of lightning and thunder, as if all the thunder and lightning are concentrated in the sky above the Keju field, standing at the head of Xianyang City, the dense lightning that is lit up one by one, you can clearly see the flames and smoke rising into the air, only to frighten the soldiers on the city tower one by one, this kind of thunder and lightning scene can be said to have never been seen, especially the tall Keju field is as eye-catching as standing out from the crowd, And the thunder and lightning have not stopped from the beginning to the present, constantly flashing in the torrential rain, one after another dazzling light tearing the ink-like dark clouds continue to impact, trembling thunder and bombardment, only frightened millions of people in fear, many people directly knelt on the ground and kept kowtowing in the direction of the Keju field, praying that the gods would not continue to be angry.

There were also many people and craftsmen in the shed, kneeling on the ground and kowtowing to the Keju field in the lightning and thunder.

A group of Xuanwu guards dressed in black with hats carrying big swords and not riding horses, in the pouring rain, one by one pale faces crossed the Weihe Bridge and went straight to Keju Field, but when they arrived at the square half a mile away from Keju Field, they stood in the rain and no longer dared to step forward, and at this time, there were countless Keju Field staff and forbidden soldiers who were training inside screaming in horror like a nest and rushing out of it and running around.

The situation had been going on for nearly half an hour, but it didn't seem to show the slightest sign of abating

Your mother drops a gourd scoop, and it's endless.

Chen Xu, who was hiding in the shed to avoid the rain, kept twitching his face.

"Have you ever seen the Marquis of Qinghe?" A Xuanwu guard grabbed a forbidden soldier who had escaped from Keju Field with a rolling belt.

"My lord, my subordinates...... Not...... I haven't seen Qinghehou yet! The Praetorian replied palely.

"Have you ever seen the Marquis of Qinghe?" Another Xuanwu guard stopped an official in a uniform.

"Ah~, I haven't seen it, but Qinghehou's carriage turned over in front of ......" the official shouted with a frightened face.

"Let's go, let's see!" A group of Xuanwu guards couldn't be afraid, so they could only brave the torrential rain to continue to approach the Keju Pavilion, and then saw Chen Xu's carriage not far from a big tree that was knocked down by lightning, at this time the carriage had overturned to the ground, and the four horses had already broken free from the reins and did not know where to flee.

"What's the length, what should I do?" A Xuanwu guard looked at the leader with a shudder.

"Seeing that Qinghehou has not entered the Keju field, he must take shelter from the rain nearby, go and look for it!" Shi Chang gave an order, more than a dozen Xuanwu guards scattered in all directions, and soon someone found Chen Xu's shed to shelter from the rain, and saw that Chen Xu was safe and sound, so he breathed a sigh of relief and began to gather his companions.

After another two moments, the dark clouds in the sky gradually began to dissipate, and the torrential rain began to weaken, and after the last few faint bolts of lightning, the thunder finally broke down, and a violent storm gradually subsided.

"Master Hou, the rain has stopped!" A group of Xuanwu guards and guards all breathed a sigh of relief, and their pale faces began to slowly recover.

"Let's go, let's go see Kemari!" Looking at the sunlight slowly shining out of the dark clouds, Chen Xu also let out a long breath and came out of the shed.

"Master Hou, why are you here?" Liu Bang, a group of stewards and security guards who escaped from Keju Field, also ran out of a nearby shed at this time, and when they saw Chen Xu, they came forward to salute in fear.

"Quickly arrange for people to gather the forbidden army and security guards to maintain order, and count the personnel ......"

Chen Xu didn't have time to talk nonsense, and commanded a group of guards to find the scattered horses and lift up the overturned carriage, and at the same time asked Liu Bang and others to quickly clean up the mess and count the personnel and losses.

"Master Hou, the thunder god is angry, the juju field is very dangerous, don't go in!" Liu Bang's pale face grabbed Chen Xu's sleeve.

"I'm afraid, it's just thunder and rain, why be afraid of thunder, Ben Hou went in to check the damage!" Chen Xu waved his hand, wearing wet clothes, and led a group of equally soaked guards and Xuanwu guards to the Keju field.

After Liu Bang and a group of stewards looked at each other, they could only scatter to rein in and calm the frightened crowd.

Entering the interior of Keju Stadium and climbing up to the highest stand of Keju Stadium along the audience passage, the situation in front of him made Chen Xu feel a burst of fear and rubbing his teeth.

The five-storey grandstand of Keju Field is an oval structure, the highest place is about 20 zhang, plus a simple wooden fence and eaves built with logs, the total height is about 50 meters, in later generations, it is equivalent to the height of a fifteen-story house, it is not too high to say that it is high, but in this era, it is definitely a super tall building, it is higher than the city wall and city tower of Xianyang City on the other side of the Wei River, so Keju Field stands on the south bank of the Wei River like a giant, and it looks magnificent on weekdays. But this height has also become the object of lightning venting, and it is easy to be struck by lightning.

At this time, what appeared in front of Chen Xu was the most powerful place that was blown by lightning, a large area of the grandstand had been blown black, and the wooden eaves and fence had already been blown to pieces, but fortunately, the fire was quickly extinguished by the torrential rain, otherwise I am afraid that the entire wooden structure of Keju Field would be ignited.

Chen Xu took a group of people around the top grandstand of Keju Field, there were seven or eight places that were struck by lightning, and the damage to the cement stand was not great, only a few places were split, revealing the steel bars inside, and some of the steel bars began to melt directly and became a strange structure.

Chen Xu breathed a sigh of relief again, and at the same time looked up to the sky and sighed, what is it, is it easy for Lao Tzu to beg his father to tell his grandmother to hammer a spectacle, to bully Lao Tzu with such a big battle, what about Thor's face?

After inspecting the Keju field, Chen Xu sent a group of Xuanwu guards back to report safety to Qin Shi Huang, and then arranged for someone to hurry up to find a group of capable subordinates such as Zhang Cang and Ma Gong Gong to arrange countermeasures, and at the same time asked Liu Bang to go to the newspaper to find Chen Ping to publish a message in the newspaper, and move the time of the opening ceremony back by half a month.

Now is the season of thunderstorms in summer, if the problem of lightning protection is not solved, maybe tens of thousands of people are watching the game inside, a thunderstorm suddenly comes, the casualties are estimated to be small, and it will also cause panic and suspicion among the people of Xianyang and the people of the world.

"Master Hou, how is this good?"

Half an hour later, Zhang Cang hurriedly came with a group of craftsmen and craftsmen who had designed and built the Keju Field by the Academy of Sciences, and a group of people were horrified when they looked at the scorched black and even exposed steel bars on the top of the stands.

"Dean Zhang doesn't need to worry, this is because the Keju field is too high to attract lightning, and only a few lightning rods need to be installed!" Chen Xu already had some calculations in his heart at this time, so he opened his mouth to comfort him.

"Master Hou, what is a lightning rod?" Zhang Cang asked suspiciously.

"The lightning rod is a very high metal pole, and if it is installed in these places where lightning strikes the most, once lightning falls, it will be attracted by these metal poles, and it will not cause damage to Keju field!" Chen Xu explained briefly.

"Master Hou, are you saying that installing a few very high metal poles can prevent the Keju field from being struck by lightning?" A craftsman asked tremblingly.

"Well, after the hemp pole and the public loser win, I will give you a brief explanation of the principle of lightning protection!" Chen Xu nodded, and instructed the craftsmen to take the lime water, and draw the locations where the lightning rods were installed in several places after being struck by lightning.

Half an hour later, Ma Gong and Gong Shengsheng hurriedly rode from the experimental factory to Keju Field, Chen Xu told the process of installing lightning rods on the spot, and then led a group of people to the office of Keju Field.

"Ladies and gentlemen, there are a lot of heavy rains in summer, often accompanied by lightning and thunder, Ben Hou used to talk about the relationship between topography and climate when he was in a class at the Academy of Sciences, and today I will tell you about the principle of thunder and lightning...... The process of lightning formation is not complicated, that is, the warm and moist air flow carrying a large amount of water vapor meets the cold air, and the two air masses collide together to produce lightning under the mixture of cold and heat, which is like when we suddenly pour a scoop of cold water into a furnace of hot steel juice......"

"Hey, I have indeed encountered this situation that Hou Ye said, the last time I was smelting a furnace of iron liquid, the temperature was too high and ignited the bellows, and the helper poured a few buckets of cold water in order to extinguish the fire, and the cold water splashed into the crucible and exploded, if it wasn't for running fast, someone would definitely be scalded to death by the iron juice!" Gong Win was surprised and nodded repeatedly.

"The principle is almost like this, but the process is much more complicated, lightning is a kind of violent force beyond human control, but please believe that although thunder and lightning cannot be controlled, but there are some ways to avoid being harmed by it, you have all seen thunder and lightning, and you must have heard of people and livestock who were struck by lightning and caused fires or killed by lightning......"

"Hou Ye is right, just near Guanzhong, every year after the summer, I will hear several cases of people and animals being struck by lightning, trees falling down, and casualties of people and animals!"

"I also heard that a few years ago, there was an old man in Liyang who was herding cattle, and he was suddenly killed by a thunderbolt in the blue sky and daylight!"

"I also heard about this, it is said that there was a god in the sky at that time, and it is said that the old man slept with his daughter-in-law at home......"

"No, I heard that the old man peeked at his granddaughter-in-law taking a bath......"

A group of people chattered and crooked the floor in an instant.

Chen Xu tapped the blackboard with a bamboo stick a few times with a black line, calling the group back from the gossip story of his father-in-law.

"Hehe, don't blame Master Hou, this matter was indeed rumored at that time!" A group of craftsmen and craftsmen laughed and bowed their hands.

"Since everyone is no stranger to lightning strikes, Ben Hou is not enough to say, there are very few lightning strikes in the clear sky, that belongs to another natural phenomenon, but most of the thunder and lightning are accompanied by heavy rain, and mostly in the summer, and thunder is not without law, that is, the general lightning strike place is a high open place, such as a big tree, such as people or livestock standing on the hill, etc., so when it rains and thunders, it is best not to stand in an open high place or go to the big tree to shelter from the rain......"

"What Hou Ye said seems to have some truth!" A craftsman nodded.

"Hey, how can what Hou Ye said be unreasonable, it must be like this, you can often see the big trees that have been knocked down by the sky!"

"Yes, when I was a child, my parents told me not to stand under a big tree when it thundered and rained!"

A group of craftsmen and craftsmen began to discuss the situation of Chen Xu again.

Chen Xu knocked on the blackboard a few times again and said: "Fang Ben Hou said that thunder and lightning cannot be controlled, but it can be avoided in a way, this Keju field is built in the open space on the south bank of the Wei River, surrounded by low houses and trees, only Keju Field is the highest, so it is also the most vulnerable to be hit by lightning, now Ben Hou wants you to build a few lightning rods as soon as possible in the area where the line is drawn, these places should be the fulcrum position of the Keju field, and it is also the place where the steel bars are the most dense, and the structure of this lightning rod is like this......"

Chen Xu said as he drew a schematic diagram of a lightning rod with chalk.

"An iron rod five feet high was erected on top, and a two-foot-long tapered silver needle was made of silver at the top of the iron rod, and the iron rod was fixed and strong with concrete, and the iron wire with a diameter of at least one inch was used below the iron rod from the top of the iron rod to the ground along the outer wall of Keju Field to the ground, and several zhang deep was buried underground, and then a large piece of steel ......was connected to it."

The structure of the lightning rod is very simple, Chen Xu explained it in a few sentences, as for how this method can avoid being struck by lightning, Chen Xu naturally didn't bother to talk too much, and he couldn't explain it very clearly, the people's understanding of thunder and lightning in this era is still in the fairy stage, and there are too many things that science needs to explain.

After Chen Xu made the arrangement, the panic and nervousness that Zhang Cang, Hu Kuan and a group of craftsmen began quickly dissipated.

Qinghe Hou is a disciple of the Immortal Family, he said that this method is effective, it must be effective, as for the principle, after the lightning rod is installed, it is not too late to ask slowly, and everyone is also eager to know how these simple iron rods and silver needles dissolve the thunder and lightning.

When it rained heavily, almost everyone saw the terrifying scene of lightning and thunder in the sky above the Keju Field, if Hou Ye's method did not work, then this huge Keju Field that cost hundreds of millions of money and tens of thousands of people to build for more than two years may be abandoned.

Everyone scattered to prepare their own work, and Chen Xu also came out of Keju Field, and at this time the guards had already found seven or eight scattered horses, put on the carriage and returned to the city.

"Go to the palace first!" After entering the city, Chen Xu thought about going to the palace to explain to the emperor first, so as to reassure the emperor.

In the Zichen Palace, Qin Shi Huang's mood had calmed down a lot at this time, and he was sitting at the desk to review the chapters, and when he heard that Chen Xu was coming, he quickly put down the brush and stood up and walked to the door to greet him.

"When it rained a lot, the thunder continued, and I heard that Keju Field was struck by lightning and ignited a fire, I was afraid that Aiqing would be in trouble, and I was slightly relieved to learn that Aiqing was safe!" Qin Shi Huang held Chen Xu's hand, and his worry was beyond words.

Chen Xu was also very moved: "Thank you Your Majesty for your concern, Your Majesty don't worry too much about the fact that the Keju Field was struck by lightning, it was caused by the poor consideration of the minister's original design and construction, but now the minister has redesigned a lightning protection device, and there will be no danger of being struck by lightning after the Keju Field is installed!" ”

"Aiqing is saying that the thunder can also be avoided?" Qin Shi Huang's face was full of surprise.

"Yes, it's summer now, thunder and rain are commonplace, Keju Field is open all around, and it's built too high, so it's easy to attract thunder and lightning, but only a simple device is needed, and Keju Field will be safe in the future, and there will never be this kind of panic situation for the people again!"

"That's good, but Aiqing still has to be careful not to make mistakes, the thunder is huge, and when Xianyang City was built, it was also struck by lightning, and there were many casualties!" The emperor breathed a sigh of relief and sat down, instructed the palace maid to serve tea, and after chatting for two moments, Chen Xu got up and said goodbye and went home.