At the same time, Daqin, Xianyang, Sihai Palace.

"Your Majesty, the lead bullet has been manufactured, and two boxes have been sent to the Nanyang Iron Smelting Mansion, and the machine tool has also been transformed and sent to the Iron Smelting Mansion.

After listening to Yu Jin's report, I nodded slightly, and ordered: "This matter still needs to be accelerated, originally I planned to equip 20,000 muskets to the Ganquan Army last winter, but now it has been delayed for half a year, and it cannot be delayed any longer." ”

Yu Jin hurriedly said yes.

"How's the big machine going?" Now Xianyang New Town is no longer the most urgent, but the Langya shipyard and the Grand Canal have become the top priority.

Yu Jin said respectfully: "Back to Your Majesty, the minister is trying to report this matter, the equipment has been built, ready for tomorrow's experiment, will Your Majesty go to watch it in person?" ”

"That's nature, and if this thing can really be realized, many of my plans can be easily realized. You go back and prepare, tomorrow I will take the three princes and nine kings to go in person. ”

————

The next day, the new city planned to build the reserved land for Daqin commerce.

Sangong Jiuqing looked at the behemoth in front of him and talked about it.

"The Lord is good, in the past, I only passed by and saw it from afar, but today's close-up view is so breathtaking!"

"Yes, such a large device requires sixteen strong oxen to pull it, and it won't collapse, right?"

"Ahem......" Yu Jin coughed awkwardly and reminded: "Lang Zhongling doesn't need to worry, Your Majesty wants to come here to watch in person, even if it doesn't work, Xia Guan can also ensure that these instruments will not collapse." ”

He Sui realized that he had lost his words, and hurriedly apologized: "That's nature, that's nature......"

As he spoke, Li Si coughed lightly, and everyone quickly quieted down and looked at my car in unison.

Getting out of the carriage and seeing the huge equipment that did not belong to this era, I nodded with satisfaction and commanded, "All the people are together?" Let's go. ”

Yu Jin bowed, and then stood on the high platform to personally direct the operation of the equipment.

"Listen to the order in front, raise the upper and lower arms, and dig the bucket!"

A small official next to him waved a red flag and commanded the green ox to pull forward in turn according to the action.

The excavator lived up to expectations, first being pulled by the green cow to slowly raise the upper arm, then stretching the lower arm to lift the bucket, and finally the bucket slowly opened.

"Fall!"

The big arm slowly descended with the flag until it touched the ground.

"Listen to the order, press the upper arm and lower arm, and dig the bucket!"

A small official holding a yellow flag waved the order flag and directed the excavator to dig under the bucket to explore the soil, and in a moment the bucket was full of soil.

"Listen to the order in front, raise the upper arm and press the lower arm; Listen to the order, dig the bucket slowly! ”

"The operator obeys the order and locks the three joints!"

Two instructions were issued, and the bucket was slowly lifted.

"Listen to the order left and right, retreat left, and advance backward right!"

The small officer holding the green flag waved the flag, accompanied by a more piercing "squeak......" sound than the swing of the big arm, the excavator carried the bucket and slowly turned to the right rear, and after reaching the designated position, the green flag waved again, and the excavator stopped rotating.

This was followed by a command contrary to the excavation, and the excavator finally dumped a bucket of soil at the designated location.

After Yu Jin commanded the green cow to return to its position and the equipment to land, I led everyone to come forward and watch carefully.

Seeing the big pit in front of me, which was almost a foot long and wide, I nodded with satisfaction and asked with a smile: "What do you think of this excavator?" ”

Li Si took the lead in exclaiming: "Your Majesty, this is really a divine thing!" Such a large pit was dug in a moment, and it was transported to a certain distance, if it was handed over to manpower, I am afraid it would take half a day! ”

Feng Zheng was also surprised: "The minister has roughly estimated, although there are a lot of instructions issued by the Lord Liangzao, it only takes half an hour to move, how can such a fast speed be done by manpower!" ”

The crowd was amazed.

I smiled and said, "Yujin, well done!" ”

Yu Jin hurriedly bowed down and thanked: "It's all the result of His Majesty's personal teaching of the minister, how dare the minister take credit!" ”

Then the bulldozer and tower crane were also demonstrated, and the eight-foot tower crane made everyone's jaws drop, and they really didn't understand how such a complex tower rotated and lifted heavy objects.

After all the demonstrations, I am very happy, with such equipment, not to mention the construction of Daqin commerce, even if it is to rebuild a Fang Palace, I am confident that it can be built with less than half of the original people and half the time!

However, there are still some questions to remind them of.

"There are a few things you should pay attention to." I looked at the morning glory and the operator and reminded: "First, we must strictly teach these people the essentials of operation, these instruments need to be driven by more than a dozen green cows and more than 20 people, and they must fully cooperate with each other, once a link goes wrong, it is very likely to cause the instrument to collapse;

Second, I saw that many parts were made of iron, and they were oiled according to my instructions, which should be especially noted, otherwise once the friction is long, it will produce high temperatures and accelerate the wear and tear of the components, so that the equipment that consumes a lot of manpower must not cause irreversible wear and tear due to improper use!

Third, although the excavator is equipped with wheels, but unless necessary, do not move easily, its structure is much more complex than the bulldozer, rash movement may cause the structure to be uneven, sudden collapse. ”

Yu Jin bowed down and said, "Remember! ”

"In addition, the soil excavated by the excavator may need to be transferred to other places, which is too luxurious with a tower crane and can be transported by rail car."

Seeing that everyone was a little confused, I picked up a stick and drew it on the ground: "The track is two rails like this that are parallel to each other, fixed with solid wood at equal intervals, and at the same time make a car with the same width as the rails, so that the car can move on the rails, which is quite convenient...... That's right, the car is on the same track! You've seen all the ruts, right? That's what it means! ”

I suddenly sighed again at the wisdom of Yingzheng, who is simply the earliest inventor of rail transit!

Sure enough, hearing the ruts, the confused eyes of everyone instantly became clear, and Yu Jin suddenly said: "Your Majesty is wise!" This not only reduces friction, but also does not fear rain, such as rammed earth, which can be pulled by a rail car! ”

Yu Jin has been exposed to primary mechanics, and the three laws are even more familiar with it, and it is easy to understand the principles.

I smiled and said, "Yes, since I have personally taught you, many words have been said in vain, and it is not in vain!" However, this track laying is not so simple, I will go to the Temple of the Four Seas with me in a while, and I will tell you in detail. ”

Everyone was envious when they heard this, and sighed in their hearts: If you can be taught by Your Majesty personally, who else will be the Zuofu and Taishi Ling! Now that Yu Jin and Taiyue are communicating, they don't understand well......

Back to the Sihai Palace, I explained the precautions to Gong Jin in detail, with the needs of the construction site, there is no need for rails, and the wood is enough to use, and it is obviously unrealistic for Daqin to manufacture rolled steel now.