The group of people was mighty, and went straight to Gewu, and after arriving, Guo Zaoqing was taken aback, originally to invite Zhang You, good guy, when the son of heaven, the second assistant of the cabinet, Zhang Ruoxuan, the left concubine of Zuo Chunfang, and Shen Wan'er, deputy editor-in-chief of Ming Pao Newspaper...... All of them are celebrities in the dynasty, and now it's time for Zigewu to show his face again.

Seeing that the ceremony was over, Zhu Yijun asked first: "Lord Guo, where is that Qin Songwang?" Lao Qian said that he had come up with a great invention, and it happened that I was at Zicheng's house with Mr. Shen, so I came over to take a look...... Hey, what about Zhonghan? He suddenly found that Fang Congzhe was gone.

Zhang You smiled ambiguously: "Regardless of him, let's go and see Qin Songwang's invention." ”

Zhu Yijun heard about Fang Congzhe and Sihan, and reacted immediately, smiled slightly, and didn't continue to ask.

"Your Majesty, Lord Shen, please come with Weichen." Guo Zaoqing took the lead and led everyone all the way to the small conference room next to his office in the backyard, where several officials were bowing their heads and fiddling with something with great interest, and they didn't even hear everyone enter the door.

"Ahem, Your Majesty and Shen Ge are here, stop playing, hurry up and see you!" After being reminded by Guo Zaoqing, a few people reacted and hurriedly got up and knelt down to salute.

"Let's all be flat, which one is Qin Songwang, this is the big invention he made?" Zhu Yijun impatiently walked to the table, bent down and stared at a small object on the table.

This is a cuboid thing, if you look closely, it is a layer of metal sheets stacked together, the metal sheets can not see what material it is, each layer of metal pieces seems to have a layer of kraft paper in the middle, firmly fixed together by a wooden clip, each end of each section of a lead, similar to the appearance of potato power generation, but it is never the same.

"Could it be that this is also generating electricity?" He asked with some hesitation, he had never seen such a thing, and the reason why he dared to guess this was because the lead was connected to a telegraph, and he had seen that thing before.

When questioning, Shen Shixing and the others also surrounded and looked curiously.

Guo Zaoqing smiled: "Your Majesty is so smart, you can guess the purpose of this thing at once...... Qin Songwang, please introduce it to Your Majesty. ”

A very handsome young official stepped forward, rubbed his hands a little nervously, and stammered: "Your Majesty, Your Majesty, Lord Shen, villain, Qin, Qin Songwang, to you, you can tell ......"

"Don't be nervous, I'm not a man-eating tiger." Zhu Yijun encouraged him, and then smiled at Shen Shixing: "Mr. Shen is even more humble and gentleman, and he won't eat you." ”

Qin Songwang didn't expect Zhu Yijun to be so approachable, so he gradually relaxed, and spoke neatly: "Yes, this thing villain calls it an electric stack, which is made of a combination of zinc and copper sheets, and each layer is sandwiched with kraft paper soaked in salt water, which can continue to power the telegraph for several hours. ”

"So powerful?" Due to the urgent need for instant communication, Zhu Yijun has always been very concerned about this matter, because he knows that he can only supply half a bag of cigarettes to the telegraph machine with more than ten potatoes to generate electricity in series, so when he heard Qin Songwang say this, he was taken aback, and his heart pounded wildly: "According to what you say, if you make a few more such stacks in series, wouldn't it be used for a longer time?" ”

"Theoretically, it should be like this, but the villain has just assembled this stack, and it has not been put into practice yet." Qin Songwang said modestly.

Shen Shixing looked at the telegraph next to him with great interest and asked, "This is the telegraph, right?" Wan'er has said it many times, can this thing really transmit messages thousands of miles? Look at it, it's shabby, right? ”

The telegraph in front of us was very rudimentary, consisting of an "electric key," two wires, connected to a magnetic needle fixed to a graduated disc. When an electric current passes through a magnetic needle, the magnetic needle is deflected, and the angle of deflection varies depending on the length of time the current passes through.

As for the electric key, it is a switch with a spring, and when you press it, you let go and it will pop up.

"Mr. Shen, don't underestimate this thing, they have done experiments, and a distance of 100 meters can accurately and quickly transmit messages." Zhu Yijun took over the conversation.

This principle was discovered by Zhao Zhenyu, compared to the kind of electric spark that Zhang You showed everyone at the beginning, it is much more energy-saving, and Gewu has done an experiment with a maximum distance of 100 meters, and the "battery" connected by fifty potatoes in series can supply electricity, and the news can be received very accurately.

This matter was reported to Zhu Yijun and received his reward, but out of secrecy, it was not publicized to the public, so Shen Shixing only heard Shen Wan'er talk about the telegraph, but he didn't know much about the specific research.

"How fast?" Shen Shixing asked with concern.

"Almost instantaneously. Isn't it? Zhu Yijun looked at Zhao Zhenyu.

"Well, both sides use the chiming clock to time, and the time to send the message is agreed, and the message is sent here and received in an instant there...... It takes a certain amount of time to decode, but it takes much less time than running over on horseback. Moreover, this is still too short a distance, if it is 1,000 meters, 10,000 meters, 100,000 meters, the advantage can be reflected at once. ”

"How fast does electricity run? Listening to Lord Zhao say this, it's like flying. Shen Wan'er interjected.

Shen Shixing asked, "With such a long distance, can electricity really be transmitted?" ”

Zhao Zhenyu couldn't answer this question, so he looked at Zhang You for help, and everyone saw this and looked over.

300,000 kilometers per second, does this still need to be asked?

It's a pity that Zhang You couldn't answer like this, and shook his head: "Everyone looks at me, I can't say clearly, everything has to rely on experimental data." In the past, due to the shortcomings of the use of potato power generation, the practical value of this technology is not high, but now with the stack invented by Qin Songwang, I think it's time to set up a longer line to do some experiments, Your Majesty, what do you say? ”

Zhu Yijun saw him looking over and nodded: "It is very necessary, according to my opinion, let's first set up a line from the Qianqing Palace to the cabinet." If it really works, it will be much easier to exchange information between the cabinet and me in the future. ”

The cabinet hall is located in the east of the noon gate, close to the Xiehe Gate, after entering from the Donghua Gate, you have to go to the southwest, the east is the mahogany library and the record library, the north is the Wenhua Gate (there is also a saying, the office of the cabinet auxiliary ministers is in the Wenyuan Pavilion, how it is not easy to verify), the straight-line distance from the Qianqing Palace is about one and a half miles, equivalent to 750 meters, but you need to detour to walk, at least more than three miles, not too far, but not close, used to set up the telegraph line for the experiment, just right.

Zhang You nodded: "What Your Majesty said is that Weichen will arrange for them to start preparing, once it can be done, they will first set up two lines in the southeast and northwest of the Beijing Division, whoever wants to pass on a message or something, as long as they pay for it, we will pass it to him, and it is estimated that it will not take long to recover the money for erecting the line." ”

Everyone finished talking, Zhu Yijun pointed at him and said: "You kid, you are really in the eye of money, you can think of money in everything, it is really condescending to let you manage Jinyiwei, it is appropriate for you to be the head of the household department." After a pause, he turned to look at Qin Songwang: "By the way, Qin Aiqing, how did you come up with the idea of making this stack?" I'm really curious, how can these things generate electricity? ”