The British telegraph company really came out of the limelight at the International Industrial Exposition, the biggest reason is that his invention is extremely easy to use, and the typewriter is matched, making it possible to popularize the telegraph, not only the telegraph company can have, ordinary small companies can also have, especially those companies that have branches in multiple cities, many bosses want to build a machine to use the command, strategize to control their wealth network, can be described as a great joy in life. The typewriter itself also greatly improved paperwork, and thousands of women began to enter the labor market, and they were engaged in typing in a harmonious manner, and it was the duty of female secretaries to assist bosses in menial tasks, and this match of heaven was created when the British Telegraph Company was founded. This is the greatest emancipation of women after a large number of female textile workers entered the labor market, and the most important way to freedom is financial freedom, and the birth of the typewriter has created a huge female labor market. Due to the thirst for labor brought about by the Industrial Revolution, British society began to not exclude female labor.

Britain was the economic center of the world, and a large number of documents required typewriters and "photocopiers", and Downing's invention was the icing on the cake for London at its peak, and when the Times wrote a large article about the typewriter, his invention shocked Queen Victoria and her husband, Prince Albert. Prince Albert was the main director of the International Industrial Exposition, as he was the president of the Royal Academy of Arts.

Prime Minister John? Russell's (the philosopher Russell was his grandson) went to the booth of the British Telegraph Company to inform them that the Queen and Prince were coming to see their telegraph and typewriter, and asked them to do a good job of hosting them, so that those who knew the invention best could present their invention to the Queen and Prince. The person who knows best, does that need to be said? It must be the inventor, and others know very little about electromagnetism.

The fundamentals of electromagnetism will inevitably become the focus of conversation when the powerful are present.

When he was adrift in the Indian Ocean, Downing's original idea was to find a teaching position at Cambridge University, and in this capacity to balance the influence of the East India Company, a trading predator, on him, but at the end of the journey, he became good friends with the financier Rawlinson, and later had a passionate Smith family financier as an ally, and already had a good foothold in the East India Company, so he forgot about it. When he received the news that the Prince was coming, his mind came alive again, because Prince Albert was the vice-chancellor of Cambridge University.

This year, the prince and the queen were both 31 years old, and the queen was a few months longer and was her husband's cousin. In this era, there was no biological understanding of close marriage, and the royal family was particularly fond of marrying between cousins.

In order to win the favor of the Cambridge principal, Downing tried to introduce the principle with simple knowledge: "Light is the fastest speed in the world, and the medium of wireless telegraphy is a close relative of invisible light, and the speed is the same as light, I call it radio waves, and the difference between it and light is that the wavelength is much longer than light, which means that it can travel far away around obstacles." Do you know that the earth is spherical, and no matter how long the wavelength of radio waves is, can they travel around the earth to the other side? After my trial, yes! Why? Is it possible to create radio waves with such exaggerated wavelengths? In fact, the advantage of radio waves with longer wavelengths is that they are not easily lost, and the real mystery lies in the fact that there is a layer above the sky that can reflect radio waves! In this way, the radio waves emitted into the sky can oscillate back and forth between the sky and the surface of the earth, and theoretically can travel to any corner of the earth, and after our experiments, this is true. By quickly turning on and off the radio transmitter, we can transmit information like a cable telegraph, and faster than a cable, you know, the speed of the radio wave is the same as the speed of light, about 300,000 kilometers per second! ”

The headmaster really has two brushes, and in fact, the prince and headmaster are good at math. He immediately asked the point: "Mr. Windsor, I have a puzzle as to why light is the fastest speed, and if I run at another speed in the opposite direction of light, then does it not produce a new speed, and faster than light?" ”

Although the building was crooked, Tang Ning still patiently expressed his opinion: "Headmaster, according to my measurements, the speed of light is the same in all directions, which means that nothing can produce a new speed using the method you are talking about. ”

Albert: "Isn't that weird? Why? ”

The headmaster seemed to be examining talents, and Downing sensed this, and said happily, "If the speed of light in a vacuum is a constant. According to the space-time view of classical mechanics, this conclusion should only be held in a specific inertial frame of reference, which is the ubiquitous medium ether in the universe. The measured speed of light in other frames of reference is a vector superposition of the speed of light in the ether with the speed of the observer's frame of reference relative to the orbital frame of reference. This is such a superposition of the situation you just mentioned, and there is a way to solve this contradiction - if the length of the observer is moving at a certain speed relative to the aether, the length shrinks in the direction of motion, canceling out the difference in the speed of light in different directions, then that's OK. ”

This is the Lorentz transformation that hides the theory of relativity, I hope no one notices this bombshell that negates Newton's view of space, otherwise Downing will have a hard time and ask him to explain the theory of relativity clearly? I'm going to die.

Since Downing said it so casually, the scientists and engineers accompanying the prince thought it was a joke, crazy, how could the length of space shrink?

Of course, this "joke" was very imaginative, and the headmaster was very satisfied, and he did not crook the building: "How is the network of the British telegraph company being built?" Difficult? ”

Downing: "It's going well, wireless telegraphy is available throughout the UK, and Europe, India, the Americas, and Australia are all being planned. Soon, it will be possible to communicate with major cities around the world with a not-so-large telegraph on the world's oceans, which will be suitable for loading on ships, and the navy will like it. It is also possible to quickly contact nearby ships in the event of a shipwreck, an ideal that requires most ships to be equipped with wireless telegraphs. It was for this ideal that I invented the typewriter in passing, and this combination would enable everyone to learn to send telegraphs. And I'm trying to reduce the cost of using wireless telegraphy for the first time, to £100 a year, less than a hundredth of a big ship, which is more than going to an insurance company for insurance, after all, property can be earned back if it is lost, and life is lost and never recovered. ”

The prime minister said movingly: "Ah, yes, it can be used on battleships, this ...... Awesome, this is a big revolution for the army's command system. ”

Downing was complacent about impressing the Prime Minister, but the Prime Minister, Lord Russell, whispered: "This is a very important matter, don't easily leak this technology to other countries." ”

Tang Ning was stunned, this ...... This was not in keeping with his ideals, and he wanted to run the telegraph company in a permanently neutral manner with a global communications network, but ......

poured cold water on his head, and just now he was proud to hook up with the head of the British government, but he found that he might be trapped in the UK, which is not what he wants, and he still wants to go back to China.

It has nothing to do with Rothschild, but with the British government, then there is nowhere to escape, such a law-abiding country, as soon as a decree is issued, his plan for permanent neutrality will be stillborn.

Tang Ning, who was struck, was absent-minded in the subsequent explanations and answers, and the blind man could see it. When the prince and his wife were about to leave, he almost forgot his Fermat's theorem, and even if he did, he only said with interest: "Headmaster, I solved a mathematical problem when I came to London by ship from India, and I hoped to use it to get a chair in Cambridge, and if it is convenient, please pass it on to some professor of mathematics who is interested in Fermat's conjecture." Of course, working for the British telegraph company now is impossible for a full-time professor. ”

Prince Albert was more interested in the natural sciences than in mathematics, and said, "You want to be a professor, and you should also be a physics, this seems more interesting, why don't you write a paper on the principles of radio and show them to the professors." ”

Tang Ning smiled: "You want to say that physics is more practical, right?" Actually, mathematics can also be practical, for example, I can build an automatic calculator, which is what mathematicians do, and I will do it when I have time. ”

Albert praised: "Very good, I am very optimistic about this project, it seems that you are also very accomplished in mathematics, I will give it to the best mathematics professor in Cambridge." ”

Finally, Lord Russell invited Downing to 10 Downing Street for a detailed discussion! Well, this may be the original reason for Downing's name, but it doesn't feel so interesting now, the owner of 10 Downing Street seems to want to use his wireless telegraph exclusively for the Royal Navy, how can he escape this fate?