Bright Sword: Starting from the Improved Grenade

Inside the semiconductor laboratory.

“You can conduct the next research here.”

After the welcoming banquet, Zhao Tianyang brought Huls Meyer, Theodor Hackland, and Rudolf Kuhnhold to the semiconductor laboratory.

"These are all experimental equipment shipped from Germany, so you don't have to worry about not getting used to them!"

Hearing this, Huls Meyer walked over to check and asked with a smile.

"The equipment is the best in our country. I wonder where Minister Zhao plans to let us start our research?"

"I know that Mr. Huls created a radar in 1904 that could detect ships three thousand meters away, but unfortunately it did not attract much attention."

Zhao Tianyang took out a blueprint from his bosom and said, "What we are going to study next is a device that can amplify the electromagnetic wave's incident ability by dozens of times."

"The British called it a resonant cavity magnetron (which in the future became the heating device in microwave ovens)."

"A radar modified with this device can detect an aircraft flying at an altitude of less than 50 meters at a distance of 70 kilometers."

“50 kilometers!”

Huls Meyer and his men were a little surprised. No wonder they always lost to the British in air combat.

"This resonant cavity magnetron is actually very simple. It is just a light bulb with a circle of positively charged anodes, and then two magnets above and below."

In this way, the electrons that were originally running straight towards the anode will be affected by the Lorentz force in the magnetic field and run in circles inside it.

The time it takes for electrons to run to the anode becomes longer, and the radiation intensity of the electromagnetic wave naturally becomes stronger. This is the magnetron. "

"Finally, by making multiple holes and slots on the magnetron, the resonant cavity magnetron can be manufactured."

“The principle is very simple!”

Huls Meyer looked at the information while listening to Zhao Tianyang's story.

"In a week at most, we can make the radar device that the British have deployed on the coast."

"Then do your best!"

Zhao Tianyang gave a few words of encouragement and left the semiconductor laboratory. He had more important things to do.

In the Hexi Corridor, in a Gobi desert, a small experimental base stands.

"You are all the best mathematicians and physicists. Thank you for coming thousands of miles to this vast desert to contribute to the national defense of our country."

Zhao Tianyang looked at everyone in the base, first thanked them sincerely, and then greeted them warmly.

"We have all come here from all corners of the world, so please introduce yourselves first!"

"I'll go first!"

A young man stood up and said, "My name is Xiong Dazhen, and I am a seventh-grade graduate of the Department of Physics at Tsinghua University."

"Tsinghua professor Ye Qisun, a physicist."

"Yenching University, graduate student Zhang Fang from the Department of Physics."

"Physics lab lab worker, Yan Yuchang, electric detonator expert, I have strong hands-on skills."

After the four people from the Physics Department finished introducing themselves, Zhao Tianyang turned his gaze to the three people standing together on the other side.

Seeing this, one of the three men spoke up: "My name is Xiong Quanzhi, and these two are Zhang Sucheng and Bai Zhengguo."

"We are all students of Mr. Su. We will fully support the research of the Eighth Route Army on behalf of the Chinese Mathematical Society."

"Our teacher said that if we encounter any problems that we can't solve, we can write to him at any time."

“Whether the Mathematical Society sends personnel to support us or asks old friends abroad for help, they will do everything they can to help us solve the problem.”

"Thank you so much!"

Zhao Tianyang thanked again.

You should know that this mathematical society brings together China's top mathematicians, with the strongest research and academic abilities.

"Now that we all know each other, let me show you where you will live in the future!"

Zhao Tianyang led seven people towards the interior of the base: "This base was just built this month."

“All the experimental equipment used are the most advanced equipment imported from Germany.”

“All the staff here are also carefully selected and absolutely loyal.”

"Besides, they are also well educated. If there is anything simple you can ask them to do."

"Every week there is a supply plane that brings us fresh vegetables and meat."

"Of course, the canteen director of our base has already started trying to raise pigs and grow vegetables here. Maybe we can eat fresher food in the future."

“These conditions are very good.”

Ye Qisun looked at Zhao Tianyang: "But what I am more interested in now is, what are we going to study?"

"Yes."

Zhang Sucheng echoed: "There are so many experts gathered here. I am very curious about what kind of weapons we are going to research!"

"arms?"

Looking at everyone's curious eyes, Zhao Tianyang smiled and said, "Since everyone is so curious, let's get started!"

..............

In the laboratory, Zhao Tianyang stood in front of the blackboard and wrote three big words.

"Computers, this is what we're going to study!"

"computer?"

Xiong Quanzhi asked in confusion: "Is it a hand-cranked computer?"

"of course not!"

Zhao Tianyang smiled slightly and started drawing on the blackboard.

"Everyone must have seen a light bulb!"

"When electricity flows through the filament, the heat causes the bulb to glow."

"If there's oxygen in the bulb, the filament will burn out, which is why light bulbs require a vacuum."

After hearing this, everyone present was a little confused and didn't know what Zhao Tianyang was trying to express.

Zhao Tianyang did not explain and continued to talk to himself: "After long-term use, the glass on one side of the bulb will gradually turn yellow."

"This is because when current passes through the filament, some of the electrons escape."

"There is a potential difference between the wires on both sides of the filament, so the evaporated electrons are attracted to the positive wire."

"Under the influence of inertia, some electrons hit the glass, which gradually turns that side of the glass yellow."

"Later, in order to solve this problem, the diode was invented. Scientists added a positive electrode plate to the circuit."

"The electrons in the filament will be attracted to the positive plate, forming a circuit, and the bulb will not turn yellow."

"But if we apply negative electricity instead, the loop will disappear again."

"Then giving positive or negative electricity can represent 1 and 0. Combined with some calculation logic, the computer language of 1 and 0 is born." In simple terms, it is similar to a circuit diagram. "Oh my god!!"

Everyone looked at the picture on the blackboard in surprise, with an expression of confusion.

"Then we let the switch input the transportation problem, and the on and off of the diode will output the remote calculation result."

"By making the circuit more complex, we can perform more complex operations, such as multiplication."

"Hundreds of logic gate circuits are designed as a matrix and used together for calculations. This is a digital computer!!"

"I understood."

Ye Qisun looked at Zhao Tianyang with shining eyes: "To put it bluntly, digital computers use the underlying logic of 1 and 0 to calculate!"

"Yes."

Zhao Tianyang nodded: "But if we want to really make a digital computer, we still need to solve the problem of memory for storing data."

"And the programming language to interpret the calculation results, and further to design the operating system to control the computer."

"Let's get started!"

Xiong Quanzhi couldn't help but stand up: "This invention will shock the world. I can't wait."