At this stage, the first thing that the Star Territory needs to study is the telegraph. If the railway wants to develop rapidly, it must have a communication tool that is not affected by the weather, has no time limit, and is faster than the railway. With the technology of the Star Territory at this stage, there is no doubt that
Telegraph is most suitable.
Jiang Xingchen is eager to find magnets, not only for telegraph and power generation, but also to establish the subject of electricity first, especially the principle of electromagnetic induction. Only by giving everyone an intuitive understanding will it be more conducive to their understanding.
, will provide a huge impetus to the development of electric power in the future.
As for the telegraph, as long as the principle of electromagnetic induction is understood, the rest is to find suitable materials to lay lines and invent batteries, and the most important thing is coding.
Jiang Xingchen didn't know much about Morse code, which was commonly used in telegraphs in the previous life, and he didn't know the specific structure of the telegraph, but as long as he knew the principle, it wouldn't take long to study it. This time they entered the depths of the vast mountains, and they used a simple method
The flashlight is actually a kind of code used to spread messages.
The experiment Jiang Xingchen wanted to do for Xian Ning was to demonstrate the effects of electricity and explain the principles of electromagnetic induction.
In fact, it is most convenient to explain the principle of electromagnetic induction through batteries, because battery research is not difficult, as long as you find the right metal. Xian Ning has a relatively complete summary of the activity of known metals through several years of experiments.
As for the electrolyte, it is even simpler. Potatoes can be used instead... However, for power generation, using batteries as electromagnets is obviously far from magnetic enough. Now there is no enameled wire for resistance winding, so he is so anxious to find natural magnets.
, the new city is about to be built, what will happen if there is no electricity by then.
Of course, in the future, when electricity develops to a certain stage, electromagnets will still be used.
Xian Ning has been yearning for electricity for a long time. When Jiang Xingchen mentioned the experiment, she nodded happily: "Of course you remember, you want to show me electricity, I have been waiting!"
"Okay, you arrange a few researchers and let them study with us." Jiang Xingchen nodded and gave instructions in a low voice.
After returning from the university, Jiang Xingchen did not return to the Lord's Mansion. He went to the rubber production factory first and asked to make a batch of insulation layers for wires.
After more than three years of development in the rubber industry, the technology has become mature, and craftsmen say they can develop it in one night.
The next day, Jiang Xingchen arrived at the university early in the morning, and Xian Ning was already waiting with more than a dozen researchers.
The researchers all had dark circles under their eyes, but they were very excited. Last night, Xian Ning told them that they were about to participate in an epoch-making experimental research. They were so excited that they didn't sleep much all night.
Jiang Xingchen is very satisfied with the people Xian Ning selected. These researchers are full of vigor and desire for unknown things, and will definitely become the backbone of scientific research projects in the future.
Taking everyone to the laboratory, Jiang Xingchen took out several wires. There was no copper. He used gold and silver alloys made from copper coins in the empire. The outside was already covered with an insulation layer. It was the craftsmen from the rubber production factory who spent the night.
Samples made from research.
Then Jiang Xingchen asked the private soldiers to bring some potatoes, all of which were steamed! He remembered reading an article about potatoes generating electricity in his previous life, which said that the power generation performance is best when the potatoes are steamed until they are medium cooked.
The next step is to choose metals. Xian Ning has already arranged dozens of metals in order according to their active properties.
Jiang Xingchen directly chose two metals, iron and silver, and then used wires and metal clips to connect several potatoes in series! Finally, he took out a very thin carbon wire...
While Jiang Xingchen was preparing, everyone held their breath and stared at his movements with wide eyes, fearing that there would be even the slightest mistake.
The moment Jiang Xingchen clamped the two wires from the potatoes in series to both ends of the carbon wire, the carbon wire glowed brightly, as if it was lit.
"Oh~" Xian Ning and the researchers exclaimed in unison, their faces all flushed with excitement.
After a while, the carbon filament burned out in the middle, and the light suddenly disappeared. Xian Ning and the researchers still had their mouths wide open. They didn't come back to their senses for a long time.
"Xingchen, this is so amazing. How many potatoes can ignite carbon filaments?" Xian Ning murmured.
"This is electricity!" Jiang Xingchen said with a smile: "When current passes through the carbon wire, it will light up! In fact, you can feel it if you try it!"
Jiang Xingchen said and nodded to one of the researchers: "Stretch out your hand!"
"Oh!" The researcher stretched out his hand nonchalantly.
Jiang Xingchen took out a few more potatoes and connected them together, then put two clamps on his hand. The researcher immediately let out an ouch and shook his hand vigorously.
"What's wrong?" a group of people asked quickly.
"It's like... it seems like something was flicked hard!" the researcher replied, and raised his hand to look at it, and found that there was no change, which was very normal.
When everyone calmed down a little, Jiang Xingchen said: "This is a battery, which converts chemical energy into electrical energy! In fact, this is a process of gaining and losing electrons..."
Next, Jiang Xingchen gave them a brief explanation, but except for Xian Ning, they all seemed ignorant. When it came to the microscopic world, they had not yet been exposed to it. Of course, they did not understand terms such as atomic nuclei and extranuclear electrons.
Jiang Xingchen is not in a hurry, now he is just instilling this concept into them.
"Sir, what is electricity used for?" one of the researchers asked.
"You all saw just now that you can light up the carbon filament with electricity! If the carbon filament keeps burning, can it continue to illuminate?" Jiang Xingchen said with a smile.
"Yeah!" The researchers nodded, each one lost in thought.
"Xingchen, you said before that metal elements can be separated by electrolysis. Is this the method?" Xian Ning asked.
Jiang Xingchen shook his head and said: "The electrolysis method is fine, but it's not necessarily whether the power is enough. I don't know for sure. I need to do experiments!"
"Since electricity can be generated using potatoes, why are you going to the vast depths to find magnets?" Xian Ning asked again.
"Haha!" Jiang Xingchen explained with a chuckle: "If we want to light up more carbon filaments, how can this small amount of electricity be enough? Even if we take out all the potatoes we grow, it won't be enough! So we must use magnets...and
There are many uses for permanent magnets!”
Xian Ning thought for a while and asked: "How can we use magnets to generate electricity? Is it also using a similar method?"
Jiang Xingchen waved his hand and said: "Of course not. You will understand after watching the next experiment. This is a very important phenomenon!"
The battery generated electricity successfully. Jiang Xingchen was quite confident in the electromagnetic induction experiment and ordered his private soldiers to prepare relevant materials. (To be continued.)
ps: I originally wanted to write four thousand, but it took me a long time to check the information, and finally I only wrote two thousand! I really feel sorry for everyone, so I will try to write another two thousand tonight!
In addition, I have seen the scene on TV where the carbon wire is lit in the book, but it is not a battery. I don’t know whether this current can light up the carbon wire. It is a fabrication and has not been tested. Please forgive me, brothers!