Joseph's words are actually quite inaccurate, but he can't tell Napoleon that your eldest brother, I came across, so I aimed at light bulbs and tubes at the beginning?

Be it light bulbs or electronic tubes, in fact, their technology trees are almost the same, and the technical difficulties are almost the same. If one overcomes one, it is equivalent to overcome another.

The first is the technique of vacuuming. The filament of an incandescent lamp will be heated to two or three thousand degrees and emit a brilliant light. But any conductive material, at such a temperature, will undergo a violent oxidation reaction with oxygen in the air, and then be burned. Therefore, in order to get a usable incandescent lamp, the first technical difficulty is vacuuming.

Another technical difficulty is the production of filament. In the original history, Edison reportedly experimented with thousands of materials before selecting the barely usable carbonized bamboo filament.

Of course Joseph knew that the filaments of later generations were all tungsten filaments. However, in this era, tungsten has only just been discovered, the output is extremely low, and the melting point of tungsten is very high, it is almost impossible to refining by smelting, it can only be obtained by chemical purification, powder sintering, and then forging and drawing. But because tungsten itself is very hard and relatively brittle, it is not easy to draw wire. Ordinary high-carbon steel drawing dies can't pull this thing at all. Diamond drawing dies must be used to produce this stuff. At that time, there was no synthetic diamond.

In this way, although it is not impossible to produce tungsten wire, the output and cost are unacceptable. Considering that there is still a gap between the vacuum technology and later generations, so even if the tungsten wire is used, the time that an incandescent lamp can be used is still limited. In contrast, firing carbonized bamboo filament is much cheaper and simpler. Therefore, after a little experiment, Joseph decided to go the way of Edison and use carbonized bamboo wire as the filament.

Of course, the attempt to pull the tungsten wire was not without results. At least, in the process, Joseph's laboratory successfully fired tungsten carbide. Although the craftsmanship of making this thing is not particularly perfect, but in the future in metal processing and other aspects, this thing is a big killer.

Today, Joseph's light bulb has been lit continuously for hundreds of hours, and it can barely be used. But now there is no second competitor in the world, so he does not have the need to improve product performance as soon as possible. Even, in a sense, if this thing is smaller and faster, it may not be a bad thing.

As for the electron tube, it is relatively more complicated, so when it is being made, the yield is still not high. However, considering that there is no competition, the performance is a little bit worse and the cost is a little higher, but it is still good. So it's great to have no competitors.

"What is the spectacle you are talking about?" When Napoleon heard Joseph say the word "spectacle", he immediately got excited.

"Of course it's a city that never sleeps." Joseph said, "You think about it, we replaced all the street lights in Paris with electric lights, and then arranged the electric lights on the most important landmark buildings in Paris. At night, the whole Paris Bright as day, isn't this a spectacle?"

Napoleon heard this and shook his head and said: "What I thought it was, there were street lights in Paris, what's the matter?"

"Street lights? Those gas lights? Compared with electric lights, the brightness of that thing is like a ghost fire in a graveyard. It's like a firefly to Haoyue, completely incomparable. Would you like to go to the laboratory to see the effect with me?"

When Napoleon heard this, he immediately opened his vigilant eyes and stared at Joseph: "Joseph, are you sure that what can be achieved in your laboratory can be achieved in a factory? I won't be fooled for the second time!"

"What is a second time fooling? What can be achieved in my laboratory will definitely be achieved in the factory, but some require a final process." Joseph said, but he looked at Napoleon’s eyes and immediately Add another sentence, "But this time you can rest assured that this thing can definitely be mass-produced in the factory immediately."

"That's good," Napoleon said. "Should we go over and have a look at once? Well, take Lucien with me by the way."

Joseph thought for a while, if you want to promote the product, which business Lucien is absolutely capable of bringing goods, so he nodded and said: "Also, take him with him. But, now, this Most of the guys are already"

"What about him? Even if he is busy, let's call him, can he still come? He wants to rebel?" Napoleon said. In fact, Napoleon was quite happy because there was a legitimate reason to disturb Lucien while he was working.

"Napoleon, you are about to be jealous, that is absolutely certain," Joseph said, and at the same time he added another sentence in his heart, "This sentence is really what Lu Xun said."

But Napoleon didn't know this, he smiled contemptuously: "Just him? Hehe, um, the Kingdom of Prussia just had a cute little public act."

Nowadays, there are wired telephones between the most important departments in France. The technology of this thing is actually quite simple, and it takes almost no effort to make this thing. With it, Joseph also established a "Paris Telephone Company" and handed it over to Louis, who had just graduated from the University of Paris.

However, because of the high cost of installation and operation, it is impossible to have an automatic switch in this era. All telephone connections need to be completed manually, which naturally increases costs. So now only the most important departments and the richest people can afford this thing. Of course, Lucien met both conditions, so now it is very easy for Joseph and Napoleon to find him, and even his house in the Moulin Rouge has a telephone.

When the call passed, Lucien had just arrived at the Moulin Rouge and was about to start work. However, facing the call of the elder brother and the second brother, he did not hesitate to put down his work and rushed over immediately.

When he arrived at Joseph's laboratory, it was completely dark. Lucien got off the carriage and saw two older brothers waiting for him at the door, and hurriedly trot over: "Joseph, Napoleon, my place is far away, I'm already coming here as soon as possible."

"We know this." Joseph said.

So Lucien let out a sigh of relief, and then asked, "Is there anything important when you are looking for me at this time?"

"I will show you something important," Joseph said. "Now follow me in."

While speaking, Joseph pushed open the door of the laboratory and walked in. Napoleon and Lucien also followed.

"Joseph, you are really, so dark, I can't see anything without a candle inside!" Lucien was complaining, suddenly his eyes lit up, and the strong light pierced him and he couldn't even open his eyes. Up.

"This is this," Lucien asked, squinting his palms in front of his eyes.

"This is the electric light. This is a brand new era where factories can run 24 hours a day." Joseph replied.

"Oh my God. My eyes almost went blind!" Lucien gradually adapted, "This thing is really bright! Compared with it, candles and other things are like fireflies. Well, does this thing produce energy? How long will it last? How much? I think the entire Moulin Rouge, from the inside to the outside, including the fan blades of the red windmill, should be used for a full circle! If so, it would definitely be"

"You don't care about the scientific principles of this thing at all?" Napoleon asked.

"Where do I need to care about this?" Lucien said, "Anyway, there is Joseph and you. What else do I need to care about? Besides, it's like I like to eat tuna. Do I have to figure out how the chef cooks tuna? Well, you haven’t answered my question just now, Joseph."

"Energy production can be used for about 800 hours, the price is, according to the brightness of each bulb, and the reserved 50% of the profit, there are 1 to 5 francs, this is 1 franc. In the future, the output will be large. , The price can still drop to one-third of the current price." Joseph replied

"This 1 franc should be commonly used, or is it slightly more expensive, 5 francs? Joseph, do you know how to do business? How can you only sell 5 francs? The high-end ones cost at least 50 francs! Ding goods are one franc, 5 cents. Do you understand? I deal with those rich people every day, and I know them best. They buy these, in addition to using them, but more importantly, showing off. How do you show off things for 5 francs? Um, how does this thing work?"

Joseph looked at Lucien and shook his head, then pointed to a rope hanging from the wall:

"Pull once, the light will be on, then pull it, and it will go out. You try?"

Lucien walked over, preparing to stretch out the rope, but he stopped suddenly and asked, "This won't get an electric shock, right?"

With the widespread use of electricity ~lightnovelpub.net~, accidents leading to death due to electric shock are no longer one or two.

"Idiot!" Napoleon said, "The rope is an insulator!"

"I know, I'm worried if it gets wet"

"I just pulled it." Joseph said.

"Okay." Lucien settled, stretched out his hand to hold the rope, pulled it, and then pulled it again, and then it was completely dark before his eyes, and then there was a bright light in front of him.

"It's fun!" Lucien pulled and then "click"

"Why isn't it bright?" Lucien asked in the darkness.

"It's broken by you constantly!" Joseph said.

"Joseph, you said this thing can last 800 hours!"

"It took hundreds of hours before you pulled it randomly," Joseph replied.