The girl who had just fallen in love could not hide the joy of her eyebrows. Tang Ning was scared and had to think of a way to cover it up. He looked around and saw a dumpling hanging on the wall. He said to Linfei: "Pick that down and give it to you."

Lin Feier was very surprised what this ball was. After taking it down, he untied the tether and was surprised to find that it was actually a straw hat. The magical straw hat was rolled into a ball. After it was unfolded, it was not visible that it was rolled over. It was light and dense, and it seemed to be a very high-end product.

Lin Feier smiled like a Xiahua: "Thank you, Master! What's the point of this hat? It's not a crease after being rolled up."

Downing: "The Japanese who went to Granada for the local specialty, called Panama Straw Hat. The local sun is very fierce, and workers have to wear straw hats. Of course, they are not so delicate. This straw hat is said to be woven by top craftsmen for six months and uses the finest grass. I guess the secret of the super flexible straw hat lies in this straw strip."

Linfeld pinched the straw hat flattened and rounded it like a new toy, and praised: "It's really good. I've picked a lot of hats a while ago, so I've seen all kinds of high-end hats. There's not such a good one yet. Oh, ask the Japanese to get more, and I can open a straw hat shop. This one is worn by a man, but I want it too." She said and put it on her head, looking like a cowgirl with aura.

Tang Ning was helpless with this lively cowgirl and asked: "Are you going to be a football referee? Or do you study for a doctorate? Or do you want to act in a drama? Or do you want to be a straw hat shop owner? Is there any correct answer?"

The cunning in Lin Fei's eyes began to bloom again: "The correct score is - I want to be an omniscient and omnipotent gangster! Like a master! Aren't you also hang around? Now you are all the emperor, you are really my idol. I at least want to be the queen of a small country, right?"

Tang Ning Yidai: "I am a big gangster? Your summary of me is so good, it's really mine..."

Linfell: "Confidant! Right? Princess! I have a premonition that you are going to be the king of the United States, haha, this should be your ultimate goal."

Downing almost laughed: "Americans don't need kings, they have a tradition of autonomy."

Linfell said seriously: "They will not be allowed to do so. If you lead the Southerners to defeat the Yankees and make the Yankees compensate 10 billion US dollars. They will definitely not be able to afford it, so they have to ask you to be the king. Once you become the king and pardon the world, you will exempt the Yankees from the foreign debt of 10 billion US dollars. The Americans are not only willing to make you the king, but they are also very happy."

Tang Ning laughed loudly and shook his head: "You are even more like a gangster than me. You are such a wise master who has become a master!"

Linfeel said more and more seriously, and said, "You can enfeoff California to me then, and I can be the Queen of California. I'm so happy!" She put her hands on her chest, looking forward to the queen's glorious political career, and her beautiful little face looked so funny and funny.

Downing: "Hmm? You actually like California...why?"

Linfell: "Uh...of course it's because it's closest to China, what? It seems that you also look at California differently?"

Tangning smiled: "If there really is such a day, California cannot handle it casually. It has the West Coast, and of course it is a strategic military location."

Lin Fei thought he had guessed what Tang was thinking, and while he was proud, he continued: "It would be a problem to conquer the Southerner..."

Tang Ning sat back on the sofa, waiting for the little girl's brain hole.

Linfell's pointed finger snapped a silent finger and said, "Okay! Aren't there a lot of territory in the north and south controversial? Nevada, Utah, Colorado, New Mexico, etc., you sent troops to occupy them all. In anger, you declare war on the Southerners, and you can do another big battle, and unification of the world is just around the corner."

Tang Ning smiled but said nothing.

After a long time, the little girl couldn't wait for the master's response and asked: "I guessed it?"

Tang Ning continued to laugh without saying a word. The little girl lost her patience and hugged the master's arm and shook it to strengthen her questioning. When the conversation was so frightening, the doorbell rang. Lin Feier jumped up from his master to open the door. A thin middle-aged man stood at the door. Tyndall, a professor at the Royal Institute of Science who had an appointment with Tang Ning.

Linfell shouted: "Hello, Professor Tyndall!" He looked very polite.

Tyndall: "Oh, little girl, hello, the hat looks so good!"

Lin Fei smiled sweetly: "Thank you! Please come in!"

He really didn't treat himself as an outsider, so Tang Ning was embarrassed to drive her away, so he had to introduce: "This is Miss Faraday, my doctoral student. Since she is here, let her listen too. What is the professor talking about with me?"

Tyndall: "I found something interesting, look!" Only then did Tang Ning notice that he was holding a box.

As soon as this thing showed its face, Tang Ning blurted out: "Tel..."

Tyndall: "What? This is an 'electrical sound transmission device'. It was sent by an Italian. He was so poor. Even the postage was paid by me. I promised to apply for a patent for him. He didn't have the money."

Tang Ning smiled. This is indeed the original invention of the phone. The inventor is Muzzi, an Italian, as a fan of science and technology history, if the inventor of the phone is not a waste of time. In real history, this unlucky pauper inventor was snatched away by Bale, Canada because he could not afford the patent fee, so that many people long thought that Bale was the inventor of the phone.

Of course, Tyndall didn't know that Tang Ning could see through the use of the "electrical sound transmission device" at a glance, and also seriously introduced how to play this thing. The little girl excitedly dragged the cable to another room and asked me to go to the door to isolate the sound transmission from both places, so that the power of the "electrical sound transmission device" can be displayed.

Tang Ning casually discussed with the little girl on the original phone about what to write in the 100 short history of the world. Lin Feier said: "Whatever you want, anything is fine." Tang Ning: "That's the case, then I'll write "The King of the East is a good drama"?"

Linfiel smiled at the other end.

Tyndall watched Tangning joke with his female doctoral student, and a strange feeling surged in his heart. Why did these two people seem to be not surprised by such a magical device?

Tangning called Linfell back and told Tyndall: "This thing is good, it's rare that you found it in Italy. What's the name of the inventor?"

When Tyndall said that, it was indeed the real owner: Antonio Muzi.

Telephone is of course a very profitable business. In real history, before At&T was not partitioned, ibm was the second largest company in the United States. After At&T was divided into seven companies, ibm ranked eighth. Downing himself did not like to make phone calls, but liked to send telegrams. However, since the opportunity to make a lot of money came to him, he could not refuse.

Great inventions can enhance national cohesion. Who said Italians can't do it? The epoch-making thing of the dynasty phone is an invention of the Italians! We, the emperor, are glorious? Donning instantly decided to drag the London fiber optic team to Italy to work with Muzzi to improve the telephone. First, invented voice telegraphs, then improved the immediacy of voice telegraphs, and then turned into two-ways, and became a real phone.

Since becoming the Italian emperor, he has indeed become increasingly far away from the British Empire. Tyndall expressed helplessness. In order to comfort Tyndall's fiber optic team, Downing said that this result will be claimed to be a cooperation between Italy and Britain. From a technical point of view, this is indeed an English-Italy cooperation, because in Downing's heart, a tripartite cooperation pattern has been planned for the telephone company, one is Muzzi's team, the other is Tyndall's team, and the other is Faraday Electric's team.

Do telephone cables still need to be deployed from scratch? No, just transform the power line so that it can transmit telephone information, which can avoid huge waste of resources and also enable the telephone company to have a huge network from the beginning. Where there is a power grid, there is a telephone network. Even if someone invents the phone at the same time, he will find that it is impossible to compete with Tangning's telephone company because the other party's network has long been like a heaven and earth network.

However, this is only in the network within the community, and the communication trunk lines still rely on optical fibers, because the transmission speed of electrical signals is not fast enough, and only the speed of light can bear the intercity and even international telephone communication requirements.

It's time to reveal a mystery. Tang Ning gave the little girl an order: "Call my students here, and today I will open my eyes to the teacher."

The junior sister received the order and drove her father to the proof of pampering her daughter without any limit: an expensive European GT, one by one, went to summon her senior brothers one by one. The first handsome brother to be summoned by the handsome brother who was summoned was very excited. Unfortunately, after he got in the car, the junior sister summoned n senior brothers. In addition, the senior brother Maxwell, he squeezed 6 people in a car, and went to the mentor's house to witness the miracle.

Last time when the magical microscopic world of subatoms was revealed, a method of obtaining electrons by discharge in a glass vacuum tube was published in the journal Nature. Now the mystery that Tangning wants to reveal is the new mysterious phenomenon of irradiating metal with ultraviolet rays and generating currents, that is, the photoelectric effect. Because this will be the core technology of telephone companies, otherwise how to use optical fibers to transmit electrical signals. Simply put, telephone technology is a technology that converts the cycle of sound waves, telecommunications, and optical communications. This is of course much more sophisticated and more complex than the telephone technology used by Muzzy or Bell.

He even wanted to find discrete mathematics experts in the alliance system of the Global University of Technology, further develop digital sampling of analog signals of sound, so as to facilitate the processing, denoising, compression, sharpening, etc. of sound, and to do basic research for the future of voice technology.

Light can generate current, which is an amazing fact that the brains of all top students also generate current and short-circuit it briefly, immersing itself in a completely unfamiliar magical world. (http://.).

Tangning introduced his "his own research results": "You should note that only ultraviolet rays can generate current at present, and it is also related to frequency. The frequency is lower than a certain threshold. No matter how long and intensity of light are, it will not produce a trace of current. This is the key point for everyone to think about. Why is this happening?"

"If you can think of a reasonable possible theory, you can get your doctorate, come on!" Tangning said with a smile. This is definitely not something you can imagine overnight, because the first reasonable theory in real history came from Einstein and won the Nobel Prize for it.

In the face of serious academic research, the junior sister dared not act rashly, so she raised her hand first. Tang Ning signaled her to speak, and she said, "Have you thought of a reasonable explanation?"

Tangning pretends: "No, but I have discovered this phenomenon for a long time, and it can be called the photoelectric effect. Come on, everyone."
Chapter completed!