Was Li Chengqian's head pumped by the door bow? Of course not!

He just didn't want to let himself have too much money in his hands, although by this time his position as the crown prince was already secure, and there would be no problem waiting for the old man to succeed to the throne in a hundred years.

But the words of walking a hundred miles and half ninety reminded him all the time that things would not be so simple, although the old man seemed to have nothing to do with him, but who knew if this little old man had any back-up? If it makes the old man suspicious, or thinks that his son is a little unreliable, then it will be a tragedy.

Of course, there is another problem of not making a lot of money!

After all, whether it is an electric fan or an electric lamp, these things are not available to ordinary people at the moment, which means that even if they can be sold, the sales volume is very limited.

And it can only supply a corner of Chang'an City, and then far away...... I'm sorry, I don't sell it if I give money, there is only one reason - there is no electricity!

And when it comes to electricity, this is Li Chengqian's real way to make money, to take the simplest example, the modern household appliances of later generations are not very expensive, right? But if you look at the electricity bill for a month, how much does it cost in a month? How much more in a year? How much more do people need to live in this life?

And not only the electricity bill, but also the water bill? What about the cars we drive every day?

Therefore, don't be blinded by the immediate interests, the kind of business that will be capped by 100,000 yuan Li Chengqian, an otaku from the next generation, will not be rare even if he is stupid, and he can give it to the old man and the old lady happily.

And the really profitable business, he won't let go!

Sitting under the bright incandescent light bulb in the East Palace, Li Chengqian thought proudly.

But then again, although there are more and more electrical appliances, the problem of insufficient power of generators is in front of him.

Friends who have studied physics will know a common sense, that is, energy conservation, a generator with a power generation of 100 kWh can never power an appliance with a power consumption of 102 kWh, and no one can change the truth.

Therefore, how to increase the power of the generator has become a big problem that he needs to solve, and the power supply distance is also the second problem that Li Chengqian needs to face in the next step.

If you want to make money on electricity, you need to increase the range of power supply, and power supply is lossy, so the term high-voltage electricity will appear in later generations.

The step-up transformer used to increase the voltage is used to extend the transmission distance, the step-down transformer that converts the high-voltage electricity into a step-down transformer that can be used by ordinary electrical appliances, and what are the current transformers, voltage transformers, filters, ......, etc., and so on The names of more than a dozen electricity-related equipment flashed through Li Chengqian's mind.

And the most important piece of equipment is the meter!

What can I do if I want to collect money without a meter? Without this thing, do you know how much money you charge from people? Collect by the day? Isn't that!

So, Li Chengqian pulled Xiao Tang and started a new round of tossing.

……

At the same time, the changes in the Daming Palace also attracted the attention of some Chang'an nobles.

Especially some noble ladies who often go to talk to Empress Changsun.

When these women saw the beautiful chandelier in the room of the eldest grandson, they were instantly conquered.

You don't have to light that damn candle anymore, you don't have to smell the mess of smoke anymore, and most importantly this thing is so bright, it's so bright that it's so bright.

So just three days later, Empress Changsun received an order for almost 10,000 light bulbs, and His Majesty Li Er was happy.

You must know that Datang's light bulbs are not cheap, one will cost at least 500 yuan, and tens of thousands of light bulbs will be 5,000 yuan, and if the cost of about 2,000 yuan is removed, at least 3,000 yuan can be left.

And that's just the beginning, and there may be more orders in the future.

What the? You say that tens of thousands of light bulbs can't be used?

Hehe, I'm not afraid to tell you, tens of thousands of light bulbs are really not too much.

After all, the people who use this thing are all aristocrats at the moment, and the study room needs to be equipped with a dozen, right? There should be more than a dozen bedrooms, right? The wife and children should have a hundred and ten in the house, right? And in order not to be looked down upon by others, how many rooms should be installed in the rooms of the servants, right?

Even the servants' rooms are equipped with lights, and how many should be installed in the courtyard?

Which of the nobles in Chang'an is not a big family? Whose yard doesn't have 10,000 square meters? In this way, two or three thousand light bulbs are barely enough.

Of course, light bulbs in this era are not very sturdy and will not last you a lifetime, so you will have to buy some spare.

In this way, nearly 10,000 light bulbs are simply drizzle, and if the supply is released, Li Er estimates that there will be no problem at all with 100,000 lamps.

……

Beauty, after selling the lanterns, the old man was in a good mood, and took advantage of the August 15th banquet for the ministers.

However, although the name is moon viewing, it is ...... But the countless big light bulbs in the four corners are bright, and the eyes of the people who shine can't open them, what's the matter? In this kind of environment, when you look up, your eyes are full of light spots, not to mention admiring the moon, but it's not easy to tell which one is the moon.

But Lao Li didn't care about those, although he couldn't open his eyes by the lights, he was still very happy, listening to a group of ministers inquiring about the price of light bulbs from time to time, not to mention the joy in his heart.

……

"What? What did you say? No way? Why? After having an order of 100,000 yuan, the old man called Li Chengqian to the study, but when he asked someone to install the lamp, he was refused.

"Father, don't worry, will you listen to me?" Li Chengqian rubbed his hands awkwardly and said with a bitter face.

"You say, if you don't tell me a meridian today, don't blame me for discounting your legs." The lamp was sold, but there was no way to install it, which made Lao Li feel very faceless.

"Father, you also know that electric lights are used for electricity, right?" Li Chengqian thought about it and asked the old man.

"Do you still have to say that?" The old man glared at Li Chengqian.

"But father, we don't have enough electricity, and it is already very good to be able to ensure the electricity in the palace at the moment, and it is impossible to supply power to Chang'an City anymore."

"How can it not be enough, isn't it good to use?" The old man obviously didn't believe Li Chengqian's words very much.

"Father, let me give you an example. In fact, this generator is like a person, it can pee as much water as a person drinks, but this also has a limit, you can't let people drink two stones of water at a time, and then pee two stones of urine, right? ”

Disgusting, really disgusting, Li Er firmly believes that the example given by Li Chengqian is deliberately disgusting people.

But the old man had long been accustomed to this, and after listening to the example he gave, he snorted coldly and said, "Then you can call a few more people to drink, and then the urine will come out!" ”()

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