Su Xin's chick nodded vigorously like pecking rice, and said happily: "It's really a good way." Pen & Fun & Pavilion www.biquge.info so that you can put the waterwheel in the most suitable position, and the size of the water flow can also be adjusted through the canal, as big as you want. As he spoke, he clenched his right hand into a fist and slammed it into his left palm, "It's so good!" ”

"Okay, let's talk about the waterwheel." Ji Yan looked at the floor and walked to a piece of sand with no debris: "Fetch a small branch." ”

His own guards quickly took a small branch, Ji Yan took it, and began to draw a picture of the waterwheel on the ground, and a group of people all gathered around to watch it curiously, stretching their necks as if they were being put on a rope.

After a while, the pattern was drawn, Su Xin looked left and right and muttered, "How does this look like a wheel?" ”

Ji Yan glanced at him appreciatively, pointed to the pattern and said, "That's right, this thing is very similar to a wheel, and even has an axle in the center." It's just that the wheel teeth are no longer a round log, but replaced with some blades to bear the impact of the water flow; The axles were to be erected with racks so that the waterwheels could rotate in the air, and the two ends of the shafts had to be lengthened to connect the belts; Of course, it needs to be built much larger than the wheels in order to generate enough power. ”

Su Xin raised his head, silently thinking about the appearance of the waterwheel, and said excitedly after a while: "Weichen already knows what to do, and within ten days, it is guaranteed to be completed together with the blower." ”

Ji Yan reminded: "Don't be careless, any link needs to be carefully considered, otherwise it will be too wasteful of manpower, time and materials if it is found to be unusable after it is built." If you don't understand something, just come to this king! ”

"No!" Su Xin and Duan Que should be under at the same time.

Originally, Ji Yan also wanted to propose the use of rolling bearings for the axle, which could reduce friction, make the waterwheel run more powerfully, and greatly improve its life, but thinking that there is no steel now, it is impossible to manufacture durable rolling bearings, and even if there is steel, I am afraid that I will not be able to make the steel balls inside, so I have to give up.

After leaving from the furnace construction site, Ji Yan went to the iron mine not far away to take a look, and found from a distance that there were all kinds of rocks and grass here, which were not the same at all.

On the way back to the city, Ji Yan sat on the bumpy king car, silently looking at the fields outside, the joy brought by the fiery construction scene under the camel peak slowly dissipated, and was replaced by a heart-piercing sadness. The whole road is more than ten miles down, there is not a single farmer who cultivates on the way, all the fertile fields of the Pingchuan River have become barren beaches and wilderness, all kinds of wild grasses grow lush and vigorous, occasionally one or two wild things disappear in a flash, flocks of birds sing happily, but there is no half of domestic animals such as horses, cattle and sheep.

Suddenly, there was a sound of horses' hooves on the road in the direction of Wangcheng, and three fast horses galloped towards them. The guards who followed the king's chariot immediately rode forward and blocked the king's chariot, all of them raised their weapons and glared at the three uninvited guests as if they were facing a great enemy.

Ji Yan looked ahead in surprise through the gap in the curtain, and at a glance, his eyes lit up instantly, the knights on the three fast horses were all women, wearing black tight-fitting uniforms, carrying bows and arrows, holding a horse whip, riding on the back of a smooth horse as if walking on flat ground, and his riding skills were quite good. Although he couldn't see his face clearly because of the distance, his sturdy posture was already moving.

The two teams approached quickly. The three knights probably saw that it was the Son of Heaven in front of them, and immediately controlled the fast horse to the side of the road, but the speed did not slow down a little, and they still galloped quickly, and they would soon pass by Ji Yan's team.

The guards saw that the three knights were all women, and they got out of the way with interest, and their tense heartstrings couldn't help but relax, although they were still slightly guarded, they had completely lost their sense of tension, and they all looked at these female knights with great interest.

The two sides staggered. Ji Yan stared at the three horses fiercely, and finally saw their faces clearly, and felt a strong exotic style rushing towards him. The three girls are all in their twenties, their snow-white skin is like condensation, so delicate that they can be broken by blowing, their long eyelashes cover their slightly blue eyes with a layer of mist, like the pool at the foot of the camel mountain, the blue is as deep as the pool, the face is soft, the facial features are exquisite, and the beauty is dazzling, Ji Yan felt that the beating of his heart was speeding up, and he secretly exclaimed: Where did the alien come from? It's all so beautiful, is this to Luoyang to show off the beauty? I can't find a single concubine who can have such a posture and figure.

Just when Ji Yan's saliva was swaying, the three women suddenly moved, only to see that they suddenly let go of the reins in their hands, quickly took off the bow and arrow from behind them with their left hand, and pulled out a feather arrow from the quiver with their right hand. The three knights did not slow down a little, threw away the bow and arrow in their hands directly, grabbed the reins again with their left hand, and struck the horse with a whip with their right hand.

None of the guards had experienced such a scene, they just felt that it was a nightmare, and their minds were blank for a moment, and they even forgot what to do next, and they grabbed the war horse and looked at it blankly.

Suddenly, a sound of "ah" sounded, and the personal guard led Ji Qing to quickly raise the bow and arrow in his hand, aiming at the three horsemen who were far away, opening the bow, taking the arrow, pulling the string, and shooting, all the actions were done in one go, and with a "whoosh" sound, the sharp arrow with a line of afterimage, crossed the two sides and opened the distance that had been more than 100 steps, and steadily pierced into the back of a knight. The knight was shocked, his strength suddenly disappeared, and he was thrown high by the galloping war horse, and flew into the grass by the side of the road.

Only then did the guards react, and half of them rode their horses after the Assassin.

The other two knights turned their heads to look, and found that one of their companions had fallen off their horses, and their bodies were shocked, and their eyes were slightly flustered, but they did not mean to stop, but whipped their horses more vigorously, and galloped at a faster speed, and disappeared at the end of the road in a moment, leaving two clouds of smoke and dust scattered with the wind.

Ji Qing was about to shoot the second arrow, but found that the target had already disappeared, so he had to regretfully put away the bow and arrow, and found that the king car was still running forward, and shouted: "Ji Chong, stop!" ”

Ji Chong was the driver of the king's chariot, he didn't know what was happening behind him, and he was still concentrating on driving the carriage. Hearing the loud shouting of Ji Qing led by the pro-guards, he stopped the carriage in surprise and looked over in confusion.

The guards chased for a while and found that they couldn't catch up at all, so they had to come back in disgrace, and all dismounted and went straight to the king's car.

"Your Majesty!" A group of guards knelt in front of the carriage and cried out bitterly, but none of them had the courage to open the curtain of the carriage, they could imagine the scene of blood all over the place, three sharp arrows shot in unison, the Son of Heaven was afraid that there was no chance of survival!

Ji Qing had a black face, carried a bow and arrows and walked straight to the king's car, lifted the curtain and looked inside, and looked strange and stunned on the spot at first glance.