Macy's is not the only large department store in the United States, and there are many department stores on Fifth Avenue, one of which is called "Rhodes & Taylors".

Ruder & Taylor was founded in 1826 and is a century-old store. Minister Tim Flynn of Zeus in Manhattan contacted a manager of Ruder & Tyler, who expressed interest in providing a venue for Dr. Lee's television installation to be performed at the Ruder & Taylor's flagship store on Fifth Avenue.

"Mr. Fox--- manager of Rhodes & Taylor, wanted to go to the lab and see the TV installation show." Tim said.

"No problem, you ask him to come to the lab tomorrow." Li Kangping did not object to this proposal.

Immediately, Li Kangping took Tim and Jennifer to the Zeus laboratory together.

"Tim, Jennifer, I told you what TV is, and now, I want you to see the real thing. Alex, you're going to be the model, Theodore, you're going to operate the equipment. ”

Li Kangping gave instructions, and Alex and Theodore were each in place.

"TV shooting, start."

Theodore activates the device and Alex performs in the photo area.

Li Kangping led Tim and Jennifer 20 yards to the receiver.

"Oh my God! Who is the man in this box? Is he Alex? Jennifer exclaimed.

"Let me see, oh, it's small, it's not very clear, but I can tell it's Alex!" Tim was equally surprised.

"Tim, look, Alex is wearing sunglasses!" Jennifer turned her head to look at Alex in the photo area.

"God, I read that right, this machine captured Alex's ongoing action and played it out immediately!"

Tim moved back and forth between the camera and screening areas, carefully observing all the amazing sights he saw.

After a long time, Tim said thoughtfully: "I don't know how Mr. Li made this machine work, I guess the machine over there is responsible for shooting--- similar to movie shooting, and the box in front of us is responsible for receiving real-time footage." Jennifer, you see, the machines at both ends are connected by telephone lines, and it's like making a phone call, except that instead of sound, it's a picture. ”

"Incredible invention!" Jennifer couldn't understand the principles of television in a short period of time, and she was amazed at the TV presentation she saw with her own eyes.

"Tim, since you're in charge of promoting TV, it's important that you know more about TV technically. And you, Jennifer, will take Alex's place, and yes, you're the first TV actress in the history of mankind. ”

Li Kangping asked Jennifer to give up her job as the president's office and serve as a TV photography model during this time.

Jennifer refused at first, but after a few scenes, she gradually got used to being a temporary model.

The first person to visit the lab was Mr. Fox of Rod & Taylor, and surprise became the norm, and everyone was surprised when they first saw the TV set they had invented.

Unlike molecular beams, electron diffraction, and matter waves, mechanical televisions based on the principle of Nipkov disks are scientific inventions, but they have strong commercial attributes.

After being shocked, Mr. Fox offered to provide the Fifth Avenue flagship store for free to help the scientific enterprise in the United States grow.

Li Kangping thanked his friends in the business community, and then welcomed friends in the scientific community.

Professor Michael Putin and his teaching assistant, Edwin Armstrong, came to Zeus' lab.

"Professor, Edwin, welcome! They were my assistants Theodore and Alex, and this beautiful lady was Jennifer, a photographic model. ”

"Hello, how are you doing? Now, let me take a look at your TV. ”

"Professor, Edwin, this way, please."

Li Kangping stood next to the camera installation, Jennifer was already in the manning chair, Theodore was in charge of the technical operation of the camera station, and Alex went to the projection station 20 yards away.

"Professor, Edwin, the design principle of this TV installation is what we are familiar with as the Nipkov disc principle, where light and shadow are converted into electrical signals, and then transmitted to the receiver at the projection end through a telephone line, and the image of the camera is restored in real time."

Professor Pupin looked at the camera installation and the pretty Miss Jennifer, and he was very calm, saying, "Nipkov's device is purely mechanical, and Luo Xing's device is a half-mechanical and semi-electronic set of things. Dr. Lee, as far as I can see, your television setup is purely mechanical in the Nepkovian style. ”

"That's right, as I said earlier, our device is actually an improvement on the Nepkov device. Of course, we are not exactly copying Nipkov, we have new ideas and technologies in it. ”

"For example?"

"For example, disc synchronization, photocell improvements, resolution reconstruction, speed/frame rate optimization, and so on." Li Kangping threw out a few professional terms.

"It does sound like it's new technology, can you be more specific?" Professor Pupin asked with interest.

You are such a smart person, a little more specific, you will master the core technology.

"Professor, Edwin, let's go to the screening over there." Li Kangping made a gesture of please, but did not disclose the core technology.

"It's a patented technology, and I shouldn't ask too specific technical questions." Professor Popping expressed his understanding and moved to the screening end.

Professor Pupin was so impressed with the live-action version of Miss Jennifer that when he saw the not-so-clear image of Miss Jennifer on the receiver screen, he quickly came to the conclusion: "Jennifer's image is transmitted to the receiver, oh, you succeeded, you did it in real time!" ”

"Dr. Lee, congratulations!" The professor shook hands with Li Kangping, and he said: "Telephones and radios have become essential items in the office and at home, will TV be far away?" As we have seen with our own eyes, the beauty of TV is that it can broadcast live footage, and it can be placed in my study. Since your TV signal is transmitted over a telephone line, it is theoretically possible for sound and picture to be transmitted to the receiver simultaneously. You can see the picture and hear the sound, oh my God, if such a TV comes out, it will definitely be very popular! ”

"Of course, I don't know how to technically synchronize sound and image, but that doesn't prevent me from flying freely in the sky of ideas," Professor Pupin added. All in all, I congratulate you again, and I look forward to your TV quickly taking over every living room, bedroom, and study room like a telephone and a radio! ”

"Thank you, Professor, for coming and for your valuable suggestions." Li Kangping said sincerely, he turned to Alex beside him and said, "Hey, Alex, do you hear, the professor's opinion is the goal of our next stage!" ”

Edwin Armstrong has remained silent, and his presence has been low since entering Zeus' lab.

A television capable of broadcasting live black-and-white pictures has been invented by Li Kangping, and Edwin Armstrong, who holds many radio patents, feels unprecedented pressure.