Zhang Taofang first used the scope to look at the sniper point just now. It was 730 meters away from her. The vegetation and branches were skewed to the northeast. The wind speed was 2.5 and the wind was southwest.

Look at the mortar positions that are being fired. The distance is 1100-1150 meters, and the vegetation is not obviously skewed.A new mortar was fired, and Zhang Taofang saw the smoke from the muzzle rising vertically.There is no wind or light breeze in this col.

After two seconds of mental calculation, Zhang Taofang pulled the trigger, and then stared wide-eyed at the movement of the mortar positions.When a small cloud of smoke rose more than three meters away from the mortar, Zhang Taofang quickly corrected the distance parameters and shot again.The American soldier who was loading shells into the mortar froze and fell over beside the gun.As soon as he fell, the dozen or so American soldiers next to the three mortars immediately scattered and fell down, and the inaccurate shelling stopped.

"Lv Dayan, just now I used the distance of 1125, and the first bullet hit the top," Zhang Taofang said, "so the distance should be... 1050 meters."

……

Volunteers who take turns to fight in North Korea change their outfits in the Northeast. After the changes and training are completed, the experience of entering North Korea increases. If they are rotated repeatedly, they can usually change their outfits again when they return to the Northeast after performing missions on the front line for several months.

The 24th Army was the first army to enter the DPRK. It happened that the Bayi-style sniper rifle passed the test and was installed in the army when it happened to be doing adaptive training in the Northeast. Therefore, the 24th Army became the first army to have a sniper battalion.

The sniper battalion has 2 sniper companies and 1 ordnance support company under its jurisdiction, but it is generally sent to the combat area as a unit of sniper platoon, and when it goes into battle, it is a team of two shooters and deputy shooters.

Zhang Taofang was born in 1931 and joined the army in 1951.It was the first time for recruits to touch a gun during training. The three bullets in Zhang Taofang's hand dragged all three bullets to the target, and was scolded by the company commander.But two months later, he graduated first in the boot camp. The 24th Army decided to enter North Korea to participate in the war, and was pulled to the Northeast for training and changing clothes. Zhang Taofang's marksmanship ranked among the top ten in the 24th Army, and was selected into the sniper battalion.

On the first day of training in the sniper camp, Zhang Taofang was scolded by the instructor again, because when he crawled to the shooting position with a low profile, he subconsciously dragged the gun away and used the butt of the gun to the ground.The instructor told him that the price of the scope on the gun is about the same as five semi-automatics...

……

"Zhang Taofang! Oh! What can I say about you!"

Well, for the first time in the battle, 10 bullets killed 9 people. Zhang Taofang, who thought she had returned victorious, was being trained by the deputy commander at the division headquarters.

"See what this is?" The deputy mayor of the 24th Division of the 70th Army pulled out the DJ-1 from Zhang Taofang's shoulder, "This is right! Tell me! Machine!"

"What's the name of the campaign we're carrying out on the front line? The campaign of cold guns and cold guns, besides guns, there are cannons!"

"You have seen the mortar positions of the US military, and your sniper team has also measured the distance, and you have not slipped out of the range of the walkie-talkie, have you? Then why don't you report the location of the mortar positions to the rear? When the mountain howitzers are not accurate Or is the 108 bazooka too ugly?"

"The next time you encounter a large group of people gathered by the enemy, artillery positions, or ammunition storage areas, you must use the walkie-talkie to call for artillery fire! Do you understand?"

……

Beijing Computer Institute.

It was almost 11 o'clock in the morning, Huang Kun and Xie Xide finally woke up after staying up all night.Rubbing his eyes, Tang Hua was concentrating on welding a small square piece with a small welding torch on the test bench

"You two, do you want to eat something now, or come over to watch the demo right away?"

Huang Kun rubbed his eyes and rubbed his face with the palm of his hand, "Director Tang,... Hey, where are the three silicon wafers Xie Gong made yesterday?"

"I have already cut it, and now it is packed in these small squares." Tang Hua pointed to the test bench in front of him, where three chips had been soldered.

The three of them came to another test bench. A dozen or so transistors were inserted in an area of ​​the breadboard above, as well as input and output circuit interfaces.

"This chip integrates 12 transistors, and the logic diagram of these transistors is the same as the circuit on the breadboard." Tang Hua said, "Now let's try it."

The thumb-sized chip looks like plastic on the outside, and is wrapped with a part of the silicon wafer printed by Xie Xide's planar lithography machine. The chip has a total of 6 shiny copper pins, 3 on the left and [-] on the left.

Tang Hua first connected the two oscilloscopes to the breadboard circuit, powered on, and the two oscilloscopes displayed the input and output waveforms respectively.

Then Tang Hua found another special circuit board with a slot on the board and six small holes corresponding to the six pins on the chip.Tang Hua took the chip and pressed down carefully.Halfway through the press, I found that the installation error of one of the pins was slightly large, so I took it out and used small pliers to break it a little, and then the chip was inserted in relatively smoothly.

Connect the oscilloscope and power on.

The world's first integrated circuit chip began to work.

"Input 1, input 2, input 3..." Tang Hua kept flipping the switch to change the input of the chip, and the output waveform also changed according to the previous setting.The six-pin chip test does not take long, after all, there are only 12 transistors in it.

"It's really much nicer," Huang Kun said, "It's much better than the messy circuits in computers today. But it's really laborious to make..."

"It's not a lot of effort," Xie Xide said. "It's more difficult in the laboratory because it's being designed. It's faster when Hon Hai organizes mass production."

"Professor Huang, how is the calculation of the second picture I gave you?"

"I'm going to talk about this. I verified all of them last night." Huang Kun turned to look for his calculation manuscript, "Oh! There are 106 transistors on it! So, a little bit of effort is fine... "

Chapter 231, The Second Condolences Group to North Korea

"After being tossed by us for more than ten days, the experimental area is like a factory." Tang Hua looked around. The machines sent to Beijing by the seven or eight factories of the Electronic Information Industry Bureau were all piled up here, and each one was still assembled. It can be run, but it is placed very casually, and some machine packaging wooden boxes are not even thrown away because they are too busy.

"Like an assembly line workshop, Hon Hai's factory may look like this in the future." Hon Hai's chief engineer Xie Xide has been thinking about how to organize the production line in Hon Hai in the future.

"I mean, our team X has to find another place to have dinner and celebrate, it's too messy here," Tang Hua said.

……

"The infiltration of phosphorus in silicon is to provide donor impurities. After a phosphorus atom replaces a silicon atom, there will be an extra valence electron. Boron has a trivalent state. After doping instead of a silicon atom, it has one less valence electron, so it is an acceptor impurity... At the dinner table, Huang Kun still did not forget his feelings when he was making chips on the computer for more than ten days. I didn’t expect to turn the most basic and basic physical theory into an application after returning to China…”

Xie Xide: "And from now on, it becomes an engineering issue and a production process issue."

Tang Hua: "Born studied the dynamics of crystal lattices very early, and later atomic dynamics continued to develop his theory of lattice dynamics. In addition, I am not the first to study the influence of these dopings on semiconductor performance. , but Shockley. Transistors and ... and X, are applications of lattice dynamics."

There were not only the three members of Team X, but also Professor Huang's lover Li Aifu and Xie Xide's lover Cao Locke, so Tang Hua swallowed his words halfway through.

"Mr. Tang... Minister Tang," Cao Locke asked, "Sid returned to Beijing from Shanghai. He only said that he was working on a very important project in the computer, and he didn't say a word about it. We were still in the UK last year. At that time, the British scientific and military circles spread the news about China's anti-aircraft missiles. I learned that this magical weapon was actually developed by China, and I immediately decided that no matter how difficult it was, I would return to China. Sid is now participating Is it a major project like the Hongqi-1 anti-aircraft missile that can give the US military another serious blow?"

Cao Luke still couldn't help but want to inquire about some news.

Tang Hua smiled: "No. The Hongqi-1 air defense missile is a small toy compared with what we make. What we are doing is an epoch-making invention that can change the world. If you want an analogy, I, Professor Huang, Mr. Xie's trio is similar to the man who invented gunpowder 300 years ago, or the man who learned to make swords from metal 8000 years ago."

Cao Luke's eyes were wide open, his mouth was opened wide, but he didn't say a word, he was like a clay sculpture.

Huang Kun and Xie Xide had never thought about the work they were doing from this height, and now they both fell silent after hearing Tang Hua's words.

Tang Hua also looked at Cao Luke with a smile.

Although these two couples seem to be a bit of a yin and yang family, but this Cao Luke is actually not an NPC...

Cao Luke, biologist, the founder of modern protein research in China.

Most famous work: In 1963, the promoter and participant of the project of artificially synthesizing bovine insulin protein.

This is the first time in human history that a protein has been successfully synthesized artificially.Since the establishment of the modern chemical system, the game of "challenging God" for human beings has successively spanned artificially synthesized organic matter, artificially synthesized base pairs, artificially synthesized proteins, and artificially synthesized RNA... and is still stuck here, failing to synthesize DNA .As for artificially synthesized cells, that's still a science fiction plot.

Artificially synthesized protein and artemisinin are two recognized discoveries in the Chinese scientific community that deserve the Nobel Prize. Lao Cao and his team were delayed by my country's scientific research system in the 7s and 80s, and Lao Cao passed away in 1995.Otherwise, you are also eligible to receive the award.

"Dr. Cao," Tang Hua said with a smile, "Things have to be on the bright side... It's like this. Although we made the first knife out of bronze, this knife is still very crude. If we want to make this knife Knives are better than sharpened flint knives. It will take a year or two, or even longer, to continue to perfect and improve them. So in the next two years, Mr. Xie will be the chief engineer of Hon Hai Factory and the The key personnel of the secret project will spend much longer in Beijing than in Suzhou every year, and the reunion of the two of you will also be longer, right?"

"That's the reason...well," Cao Luke also smiled, and turned to Xie Xide and said, "After the cooking and washing the dishes at home, I will be mine, right?"

……

Beijing Railway Station.

The Chinese People's War to Resist U.S. Aggression and Aid Korea's Second Condolences Mission to North Korea is ready to depart.

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