Back in his room, Alfonso wrote a simple greeting to Gisela.

Because he decided to slow down, the letter didn't contain much real content, but it got off to a good start.

If the man sends the first letter, the other party should write a reply naturally.

While writing the letter, Alfonso recalled Gisela's history, a very ordinary woman, with a mediocre appearance, no deeds, and not a famous demon figure, if it weren't for her husband, even if Alfonso was a student of history, he wouldn't know this person.

Gisela's husband was Prince Leopold of Bavaria, commander-in-chief of the Eastern Front of the German army in World War I, and a fierce man who knocked Russia out of the war.

Alfonso questioned Isabella, and the queen told him that Gisela and Leopold were cousins, and that they were ten years apart.

Although Gisela will not be 13 years old until he is 3 months old, the nobles are married quite early.

Alfonso estimated that in normal history, the two should get married in a few years, but he didn't expect that he hadn't made a marriage contract yet, but he found him.

Gisela herself is not worth mentioning, but her identity is very instructive.

Historically, Rudolph was the only son, he had three older sisters, Gisela was the second sister, and the eldest sister died at the age of two, so she was the eldest child of Emperor Franz Joseph.

You know, Rudolph didn't live to inherit the throne......

Alfonso shook his head, putting aside these unrealistic fantasies, Rudolph had died by suicide, and with his own variables, he might not have killed himself.

And Austria does not allow women to inherit, Maria Theresa is a special case, but it is also the only case, even she fought for this and failed to inherit the throne of the HRE, only the titles of Grand Duke of Austria and King of Hungary. (The throne was inherited by her husband)

He wanted to inherit Austria-Hungary, but there were too many variables, the succession of Emperor Franz's nephew and nephew (his two brothers died one after another), the interference of the foreign powers, and the opposition of the people...... The difficulty of the operation may be similar to that of a sweep of Europe with Spain.

It's still about looking at the present.

Spain's cornering overtaking must rely on the second industrial revolution to achieve.

My biggest advantage is that I know what is the way to go in the future.

Electric light is undoubtedly one of them, he had sent someone to contact Joseph Swan in the United Kingdom, originally wanted to buy the patent directly, but after careful investigation, it was found that Swan did not have a patent for electric light at all, but the other party was conducting relevant research is true.

That's easy, you don't have to spend a lot of money on patents, you just need to invite someone else to be an engineer.

Swan gladly accepted an offer from a government, having previously worked as an engineer for a photographic substrate manufacturing company for a salary of just £350 a year.

Spain offered him an annual salary of 1,300 pounds, and he could continue to increase it if he did his research, and he was eager to give up his British citizenship on the spot.

Now that the Swann had arrived in Spain, Alfonso was interested in meeting historical figures, but the temporary institute was located in Barcelona, which was too far away.

Such a high annual salary is naturally not without a price, in addition to bringing his own smart brain, Swan also brought previous research materials, any future inventions, patents also belong to Spain.

There are two problems that plague the development of Swan electric lamps, one is that the suitable filament material cannot be found, and the other is that the vacuum technology is not good, and the life of the lamp is too short.

Everyone knows that tungsten filament is used for filament, but the mass production of tungsten filament will not be until the end of the century, fortunately, in the previous physics class, Alfonso's physics teacher said that carbonized bamboo filament can also be used to make filament, the effect is not as good as tungsten filament, but it can also be bright for hundreds to thousand hours.

That's enough, in the absence of competitors, within the right range, the faster the product damages is actually good for making money.

Researchers at the institute have been searching for suitable bamboo silk around the world, and it has been the longest time to compare which bamboo silk is brighter.

The researchers at the Barcelona Institute come from all over the country, and although it is a start-up and takes time to integrate, the level is still quite good.

It can't be compared with Britain and France, but it is better than most countries in the world, and it is in the top six in the world, even more than the United States.

Having solved the filament problem, the next step is the evacuation technology.

He really doesn't know who developed this unknown technology, but fortunately he is not alone.

He sent people to various countries to inquire, and finally found that there were really many engineers studying this thing, among which the teams of Belgium and Austria-Hungary were at the forefront.

He didn't bother to distinguish carefully, and directly dug all the high salaries, and this year's scientific research can cost a few dollars, and the electric light is the real lucrative business.

These teams have 3-5 members, and naturally things are not as fast as Swan's, and it may take a month to arrive in Barcelona.

But there is no hurry, there is not a single power plant in the world, and it is useless to study it now.

He was going to try to build a thermal power plant in Spain first, and launch the power plant and electric lights together to achieve the best results.