Chapter 53: The Warmth Brought by Late-Night Hot Pot

The cook, after hearing He Yuzhu's words, brought him to another tent and said, 'Because transportation is difficult here, we have stored some vegetables and meat.' He opened a wooden board on the ground and said, 'Because the Gobi Desert has large day-night temperature differences, for convenient storage, the acting company commander fetched some nitre and made some ice blocks, creating this ice cellar.'

He Yuzhu walked forward and saw that in the center of the tent, a square pit had been dug, its surroundings wrapped in ice blocks, inside frozen with some cabbage and potatoes. He Yuzhu saw there was also a sheep and said, 'Do we still have sheep here?'

The cook laughed and said, 'This is a wild goat; the last time our soldiers went out to transport supplies, they shot it on the road.'

Seeing there was lamb, He Yuzhu and the cook carried the meat to the cook's tent. The two of them shaved off all the meat from the whole sheep and cut it into small strips. He Yuzhu and the cook then went to the ice cellar to get some cabbage and potatoes. After preparing all the ingredients, night was about to fall. After night fell, He Yuzhu glanced at his watch and saw it was past ten o'clock; the two then began to add base ingredients and water to the two large pots.

After the pot opened, he put all the meat strips in. He Yuzhu said, 'We need to cook it a bit longer; the sheep is too big to cook easily.'

After about half an hour, He Yuzhu added the potato slices. At that moment, the cold wind had begun to blow; He Yuzhu put on his military overcoat, but still felt the chill from the wind. After another ten minutes, he added the cabbage. Looking at the red color dyed by chili, he swallowed and said, 'Let everyone know it's time to eat.'

After the cook left, He Yuzhu picked up a chopstick of lamb and put it into his mouth; instantly the spicy flavor came from his mouth, 'Comfortable,' he shouted.

Soon, the camp crowd filled the cook's tent. Chen Yun walked in and said, 'Zhuzi, what did you make? I can smell a fragrance from outside.'

He Yuzhu hehe smiled and said, 'A simple version of spicy hot pot.'

Chen Yun heard about the hot pot, came over to look, and said, 'Isn't this just stewed lamb?'

"Professor Chen, I also want to make the old Beijing-style hot pot, but aren't our conditions limited? After a while, you try it; it tastes like Mountain City hot pot, guaranteed to dispel wind and cold after eating." He Yuzhu finished speaking and began to serve meals to the soldiers.

The lamb, red all over and wrapped in chili, gave off a spicy aroma. Soon the two pots were almost empty. He Yuzhu put the last lamb into his lunchbox, took two steamed buns made of blended flour, and ate the buns and lamb together. The lamb was a bit spicy; He Yuzhu had almost finished the two buns while only half the lamb was gone, so he took another bun and started eating.

While He Yuzhu was eating, sweat pouring from his head, Chen Yun walked in and said, 'Zhuzi, you've prepared the lamb well; after eating, the whole body feels warm, but the spiciness is too strong.'

He Yuzhu, while eating and looking at Chen Yun, said, 'Professor Chen, this is hot pot, not stewed lamb. Ha ha, I didn't expect the chili to be this spicy.'

Chen Yun, looking at He Yuzhu who was eating, said, 'You should go to sleep early tonight. We have received intelligence that in these few days, the White Bear will launch a launch vehicle; tomorrow we need to find a suitable observation spot.'

These days, He Yuzhu had been wanting to ask Chen Yun some things, so he said, 'Professor Chen, why did the White Bear place its experimental base so close to our Northern Frontier? Also, how can we obtain their trajectory and data?'

Chen Yun smiled slightly and said, 'The White Bear itself doesn't want to be that close either; although the White Bear is large, there are only a few places suitable for experiments. Being closer to the west, they fear the Beautiful Country stealing 【the data】; perhaps they think our nation's strength is too weak, so being near us feels safer.'

"How to obtain 【the data】? Of course by looking," he said. "You'll know when the time comes. Do you see the comrades who came with us? They are here to help us watch. As for us two, we will need to use Doppler frequency to calculate during the launch. That's why I called you here, Zhuzi."

He Yuzhu put down his chopsticks and said, 'Professor Chen, but I don't know how to calculate using Doppler frequency.'

Chen Yun laughed and said, 'I know; not many domestically know how to use Doppler frequency calculation. But don't forget, Zhuzi, you entered the radio specialty, and I have been guiding you all along—I know your ability to comprehend. As for the method, I will teach you tomorrow.'

"I heard Xiao Yue say that you are especially sensitive to higher mathematics; basically, all higher math, after a few explanations, you can grasp it thoroughly."

He Yuzhu smiled and nodded.

This might be his greatest skill after rebirth. When Gao Yue was tutoring him in mathematics, he had already discovered it. Later, He Yuzhu went to the library and found some higher arithmetic problems, tried to solve them. To this end, He Yuzhu specially went to the math department to verify the answers, discovering that his solutions matched the answers exactly. Moreover, He Yuzhu discovered a kind of equation for which he could derive several answers; these answers were as if imprinted in his mind—upon seeing an answer, it would pop into his head.

The next morning, Chen Yun found He Yuzhu and handed him a formula he had written in his notebook. After receiving it, He Yuzhu looked at it for a while and said, 'Professor Chen, do you mean this theory? The difference between the received frequency and the transmitted frequency equals the number of complete waves the observer receives per unit time; therefore, the number of complete waves passing through the receiver per unit time is the received frequency.'

Chen Yun looked at He Yuzhu in astonishment and said, 'Zhuzi, I've discovered you are a genius; can you solve it?'

He Yuzhu looked at the test question without raising his head and said, 'It should be possible; I'll give it a try.'

After saying that, He Yuzhu picked up a pen and wrote in his notebook, while writing and also saying, 'First calculate the phase difference; phase difference is displacement difference divided by wavelength times 2π.' He Yuzhu took nearly twenty minutes before solving the problem.

Chen Yun looked at He Yuzhu's notebook full of writing, took it from his hand, glanced at it for a while, and said, 'Not bad, Zhuzi; you got this question right, but it's only a basic problem—we still need deeper practice.'

These days, the two of them repeatedly practiced Doppler frequency calculation in the tent; He Yuzhu was like a demon—aside from eating and sleeping, he kept doing exercises. Finally, one afternoon, Chen Yun entered He Yuzhu's tent and said, 'Zhuzi, get ready; we'll set out soon.'

He Yuzhu heard Chen Yun's words, raised his head, and asked, 'Are we going to take action?'

Chen Yun nodded and said, 'That's right; we have received intelligence that tonight the White Bear side will launch a satellite; we must now prepare.'

He Yuzhu said, 'Okay, Professor Chen, I'll get ready and go out right away.' After saying that, He Yuzhu picked up a package, placed a military overcoat inside, also put a bottle of wine and a box of peach pastries into the package, and finally looked at the dagger sent by Gao's father and said, 'Take it, just in case of an emergency.'

When He Yuzhu came out, he saw four vehicles ready. He hurriedly got into the car; after He Yuzhu boarded, the vehicle slowly drove out of the camp.