Since Lanmian City is a city-state in the form of a long snake, fixed-point transportation is different from Brentre where there are only two roads back and forth, and traffic jams along the way are inevitable. After tossing and turning for more than an hour, they finally came to the city lord's hall.

This hall is also a circular building similar to the central council hall, but there are no steps and it is not that large, a bit like a European-style castle.

After they walked into the hall, the Mayans inside were not as chaotic as Tianxuan imagined, or all of them were waiting for battle. In fact, they were all doing their own things, busy with their own work, and they didn't look like they were poisoned at all.

Tianxuan was puzzled, so he leaned into Gu Sas's ear and whispered, "Your Excellency Gu Sas, I feel that they seem to be no different from before they were poisoned!" ”

Gusas also replied in a low voice: "Didn't I say that this neurotoxin does not affect intelligence. Alright, don't talk too much below, everything depends on my eyes. With that, Gusas ignored the two of them and walked straight to a dark-haired man in a large black robe.

"City Lord, long time no see?" Gusas greeted the brunette.

At this time, the black-haired man turned around, and Tianxuan saw that this person was not too old, close to middle-aged, with short black hair and thick eyebrows, which looked quite a leader's temperament.

"Yo! What wind brought you to Gusas? ”

"City Lord, it happened recently, and I have a problem with the supplement there, so I came to the spare warehouse to pick up some necessities." Gu Sas leaned over a little and said respectfully.

"Hey! Call me Yu Wenquan, what are we polite about the two of us being good brothers? With that, Yu Wenquan instructed the two poisoned men to come to Gusas, "Come, you two follow the Archon of Gusas and help him get the necessities." ”

"No, you don't! No! Gu Sas hurriedly waved his hand and said with a smile, "Don't bother the city lord, I have two followers here." ”

"Really?"

"Not really! I can take care of the necessities myself! Gusas continued to wave his hand.

"That's fine, I'll let the warehouse manager know so you don't have to go through complicated verification." Yu Wenquan stretched out his fingers and said slightly curved.

"Very good! Then I'll be there! With that, Gusas made a special farewell etiquette and walked towards the alternate warehouse with Tianxuan and Hercules.

In the corridor leading to the alternate warehouse, Gushas found a secluded place and made a final plan with the two of them: when they went in to get the necessities, Gusas was responsible for luring the storekeeper away; Tianxuan and Hercules are responsible for entering the secret room to obtain the antidote. After arranging the arrangements, Gusas led them into the alternate warehouse......

"Hello Curator Martin!"

"Yo! It's the Chief Consul—O Gustus! Just now, the city lord of Yuwenquan has already explained to me that you want to come over. "The curator Martin who spoke was a little old man with a round head, slightly convex cheekbones, drooping eyebrows, and deep-set eyes, looking like a kind old man.

As originally planned, Gusas asked Martin to help him find the necessities; Tengen and Hercules crept into an abandoned room in the alternate warehouse.

"This is it!" Tianxuan asked.

"It must be this, that's what it's marked on the map!" Hercules replied.

"Alright, let's open the Chamber of Secrets now!" After saying that, Tianxuan and Hercules moved the mechanism of the secret room.

After a "click" sound, the passage of the secret room did not open, but the noisy sound aroused Martin's alarm.

"Do you hear anything? Your Excellency the Archon! Martin's eyes looked down a little distractedly, and his ears stood up.

"I think there is, but I didn't hear it clearly!" Gu Sas said lightly.

"No, I heard it coming from that abandoned room, and it was rumored that there was a secret room there. Maybe there's some fish out there! I've got to check it out! At this time, Martin's eyes were no longer kind but became quite sharp, like a battle-hardened veteran.

Hearing the sound of footsteps approaching outside the door, Tianxuan and Hercules were a little flustered, not knowing what to do.

Suddenly, the light shining on the ceiling shook, and Tianxuan looked up to see that the entire ceiling was a pale yellow rectangular light strip, and the spherical lamp tube was constantly rotating at the moment. Tianxuan put his finger on his lips and thought for a moment, and then had an idea......

With a "squeak", the door opened, and Martin searched everywhere like a spy for clues. And Gusas also held his breath a few minutes after Martin entered the room, and followed hard.

After searching for a while, Martin didn't find any problems, his eyes changed back to a kind look, and he said to me with a smile: "It seems that there is really no one, I am too worried!" Hahaha! Let's go ahead and pick up the essentials! At the same time, a hanging heart of Gusas also fell.

And at this time, where did Tianxuan and Hercules go? It turned out that they were hanging sideways from a square light strip. However, because only half of the body is stuck in the light strip, it is really difficult to maintain a suspended posture.

Actually, Martin could easily spot them by looking up for a moment, but thankfully there was no shadow of the two of them on the ground, so he escaped. The two of them haven't found out about this yet.

"What happened? Why didn't the secret room be opened, and there was a strange noise," Tianxuan asked.

"Oh, I forgot that Gusas gave me a verification chip." Hercules suddenly realized. With that, he inserted the chip into the gap in the chamber, then pressed the switch again, and this time the door opened. At this moment, the image shook on the wall, and after the lines were constantly distorted, a passage to the secret room appeared in front of them......

Once inside, they quickly found the antidote according to the graphics provided by Gusas, then closed the passage to the secret room and quickly returned to the backup warehouse. The timing was just right, and Martin had filled Gusas with the essentials.

"You two come here, the necessities are ready, and we'll take them back to the Consul's Hall as soon as they're ready." When Gusas saw the two of them, he understood that the antidote had arrived, so he hurriedly waved to them.

After some pretense, the three of them left the city lord's hall with the antidote and necessities and returned to the residence of Gusas. At this time, Nicos was still unconscious on the sofa, just in time to inject her with an antidote without any pressure.

"That's it, right?" Tianxuan looked at Gu Sath and asked.

"Well, of course, she's not awake now because of ****** drug. After a while, she will wake up! Gusas said calmly.

"Woo! What a thrilling day today! Especially the moment Curator Martin came in just now, he was really scared to death! Tianxuan breathed a long sigh of relief and said with a smile.

"Of course, it's not good, it almost scared me to death!" Gusas reproached.

"However, the old man's eyes are not good, and he didn't even notice us, which is a blessing in misfortune!" Tianxuan was still smiling, glad that he had saved the day.

"What is there to be thankful for!" Gusas snorted and reprimanded very unpleasantly, "Do you think that old man's eyes are not good?" It's not up to me to give you pointers. Would you otherwise have thought of climbing onto the light strip of the ceiling? ”

"Sure enough, it's Your Excellency, I'll just say why the lamp keeps turning." Tianxuan said with a look of surprise.

"In addition to this, I have also eliminated your shadows, otherwise it would have been exposed a long time ago, and everyone would have finished together." Gusas made no secret of his credit, a little afraid that others would not know.

"Shadows? Oh, yes! I said, how can I not see my own shadow! It turns out that it is your Excellency's credit again! I can't thank you enough! Tianxuan thanked him with his arched hand.

"It's good to know! You wouldn't have been able to make it without me! Gusas looked a little arrogant when he said this. This made Hercules a little unhappy.

However, Tianxuan didn't care, what he wanted to know more was to eliminate the shadow: "Could Your Excellency Gusas please tell me how you helped us eliminate the shadow?" I'd love to know! “

Gusas tilted his head and cleared his throat, and began to speak triumphantly of his work: "Shadows are darker areas formed by objects that block the propagation of light and cannot pass through opaque objects. A shadow is not an entity, just a projection. You know this, right? ”

"Of course I know!" Tianxuan nodded.

Gusas walked over to the console and clicked on the screen to pop up a 3D holographic projection, a person appeared, and then a beam of light shone on his body, casting a shadow behind him.

Then, he pointed to the shadow area and said to Tianxuan, "There are two kinds of shadows: umbra and penumbra. The shadows under the light are particularly dark in the middle and slightly lighter on the periphery. The particularly dark part of the shadow in the middle is called the umbra, and the gray part around it is called the penumbra. ”

At this point, Gusas paused for a moment, fiddled with the screen for a while, and then continued to talk: "Suppose one of the light sources shines on an object, the object will cast a clear shadow; If it is two light sources, it will form two overlapping shadows that do not coincide, and the overlapping part of the two shadows has no light at all, and it is completely black, which is the umbra, and the half-light and half-dark next to the umbra is the penumbra. If multiple light sources shine from different angles at the same time, the umbra will gradually shrink and the penumbra will appear in many layers......"

Saying this, Tianxuan understood and interrupted him: "Oh, I know, this is the shadowless lamp of the hospital!" ”

"Shadowless lamp? Good name! There's this thing on the ground? Gusas wondered.

So, Tianxuan tried to explain the shadowless lamp in the hospital operating room on the ground.

The principle of shadowless lamps on the ground is to arrange the lamps with great luminous intensity into a circle on the lamp plate to form a large-area light source. In this way, the light can be irradiated to the operating table from different angles, which not only ensures that the surgical field of vision has sufficient brightness, but also does not produce obvious umbra, so it is named shadowless lamp.

After listening to Tianxuan's explanation, Gu Sas understood. So, "hehe" smiled. Said disdainfully: "But that's it." This only eliminates the penumbra and shrinks the umbra, but it does not eliminate the shadow completely. ”

"How?" Tianxuan asked puzzled.

"The real shadowlessness is that I emit light from the angle of a room in a hedging way, eliminating the projection from the opposite direction. According to the propagation of light, that is, the light source in the opposite direction illuminates the object and cancels each other out and goes around, that is, the projection in this direction is eliminated. I made precise calculations and adjusted all the angles through the tubes on the strip. Thus the projection in all directions is cancelled out. This is the real Shadowless, you see? The more Gusas spoke, the more smug he became.

Hercules was a little upset with Gusas's performance and stepped aside. But Tianxuan didn't care, in his opinion, the interest brought by the novelty of high technology has surpassed everything.

This novel is from Reading Books