......

An off-road mountain bike on its way to the Macem camp. {We don't write novels, we're just web text porters-

Emily, a physicist, stared at a tired dark circle in her eyes, a little drowsy. But the ambiguous eyes that the sisters kept throwing made her want to die.

She looked at the handsome Oriental guy sitting beside her angrily, and said Okay, what about asking for physics knowledge? No, no, he is indeed asking for physics knowledge. And it took a whole night for this consultation, and she had a chance to sleep at five o'clock in the morning.

Don't get me wrong, it's a literal request for physics. He went from the principle of flame, the construction of plasma, to aerodynamics, to the principle of rocket launch. From the structure of the atmosphere, to the linear velocity of the Earth's rotation, how to break through the first cosmic velocity, the Big Bang, the possibility of the multiverse, and the rationality of the existence of dark matter......

At first, she thought that he was a reserved Oriental who needed to pretend and transition the atmosphere. Therefore, she also answered his questions one by one with great interest.

But I didn't expect that it would be endless, endless. By the end, she was going crazy. All night, I was discussing and researching physics. At that moment, she had never been so disgusted with physics.

That's all.

When Emily joined her sisters with the dark circles under her eyes and drove to the Macem camp, those envious and jealous eyes really made her want to find a hole in the ground. She understands what they mean, look at your haggard appearance, even if you are unrestrained, you don't have to be unrestrained for a night, etc.

She tried to explain that one night was really discussing physics, but no one believed it.

"Emily, I have a serious question for you. Wang Yan is in good spirits, with his physique, let alone not sleeping for a night. Even if you don't sleep for a week, you'll still be in good spirits.

"Here we go again......" Emily groaned inwardly~.

"We had a discussion last night. Hot air balloons are lifted off against gravity by the buoyancy of air. Then the question arises, assuming that the density of the air does not decrease dramatically due to height, then will the hot air balloon rise indefinitely. And break free from the gravitational constraints of the earth?" Wang Yan asked curiously.

"Of course, as long as you keep enough buoyancy to fight gravity. "After all, I'm an expert in physics. Even if Emily is not in good spirits, she can easily answer Wang Yan's seemingly childish question, "With enough air density, it can gain continuous buoyancy and maintain the balance between internal and external pressure." And as the altitude increases, the gravitational pull weakens relatively and it rises faster. ”

"What about the first cosmic velocity?" Wang Yan said with a slight frown, "It's not that you have to accelerate to more than 7.9 kilometers per second. Can we break free from the gravitational pull of the earth?"

Emily was dizzy, she really wanted to strangle this handsome oriental guy, can't you tune it well? You asked so carefully, you really want to fly out of the earth? She replied helplessly with a loveless expression: "That means that in order to get out of the earth's gravity without providing more power, you must exceed the first cosmic velocity." To put it simply, if you want to leave the earth by the inertia of the object's motion, you must exceed 7.9 kilometers per second. ”

"Emily, you mean that as long as there is a constant source of power, I can ignore the first cosmic velocity?" Wang Yan held his chin. Said with a serious face.

"I'll explain it a little bit more clearly. Emily glared at Wang Yan angrily and said, "If I want to kick you out of the earth, the force of that kick must be your initial speed. More than 7.9 kilometers per second, because I didn't kick you continuously to exert force on you in the follow-up, you have to roll out of the earth by inertia, and if you can't reach that inertial speed, you will be dragged back by Mother Earth. But if I can kick you again and again, even if it's slow, I can kick you into outer space, you know?"

"Understood, easy to understand. Wang Yan said with a smile. "Thank you, Emily. You solved a problem that had been bothering me for a long time. ”

"Emily. The rest of the people, seeing that they were discussing the issue, gathered around with some curiosity. The beautiful boss asked. "So what do you mean is that if I refuel the plane with a little more fuel, I can drive it all the way into space?"

"Smack!"

Emily slapped her forehead, and tears were about to fall: "Andy, the wings of the plane must rely on the air to maintain the lift-off force, and the aircraft engine also relies on the air to propulsion." The higher we go in the atmosphere, the thinner the air becomes, and the plane will fall. ”

She is also drunk, why does everyone not understand such a superficial knowledge of physics?

Another student asked curiously, "Emily, the rocket has nothing to do with the plane, right? Why don't you let the rocket fly slowly and keep flying into outer space?"

"Oh my God!" Emily felt like she wasn't here to hike the mountains for a vacation, but to teach kindergarten. She patted her forehead and said helplessly, "Your theory is feasible, but to do that we need a huge rocket bay to supply rocket fuel, and the bigger the rocket, the more propulsion it needs, and it will form a vicious paradox." In fact, even if you could design a rocket that broke away from Earth based on your theory, its energy consumption would be far greater than that of existing rockets. Energy consumption is a big problem, do you know why the closer the rocket launch site is to the equator, the better?"

"I know. Wang Yan raised his hand and said, "Because the rotation of the earth has inertia, and it is the fastest at the equator...... This saves power. ”

"That's right, do you need the teacher to give you a piece of candy?" Emily glanced at Wang Yan faintly and said, "Actually, if you don't count the cost of raw material transportation, Mount Kilimanjaro, where we are located, is the most suitable." First, it is very close to the equator, which means that it has a high natural linear velocity. Second, it is very high, farther from the center of the Earth than elsewhere at the equator, meaning that the linear velocity is almost at the highest point of the Earth. Thirdly, it naturally has an altitude of six kilometers, which can save some travel in the atmosphere. Fourth, the atmosphere above the equator should be relatively thin, which can reduce air resistance. ”

After saying that, she used a blanket to muffle her face: "Dear curious babies, Teacher Emily is going to sleep." She just covered her face, but suddenly lifted the blanket again and rolled her eyes at Wang Yan, "That's right, dear Yan." If you really want to learn how to fly out of the earth, you must pay attention to the internal and external pressure, otherwise you will blow like a toad. And, of course, wear a few more pieces of clothing by the way, it's cold on it. By the way, the warm layer of the atmosphere absorbs a lot of ultraviolet rays, and the temperature is very high there, so take care to take off your clothes. ”

After saying that, she covered her face and went to sleep, and no one paid attention to it. She can see that the handsome Oriental guy either has a problem with his brain or writes novels. Why is she Emily so unlucky, she finally met a handsome person. How can it be a brain problem?

"Got it, thank you, Emily. Wang Yan said with a smile.

As soon as she slept, the rest of the girls' families pulled Wang Yan over.

"Yan, you're too bad, aren't you? It's so hard to toss Emily so tired. ”

"Take it easy, we're going to climb the mountain in the next two days. ”

"Why don't we work on a research project together tonight? I don't know physics, but I know literature. ”

"This ......" Wang Yan broke out in a cold sweat.

......

A day later.

Nestled in the Italian command.

Yan Zun wore a mask and sat in the command center, using his huge spiritual power to process information from all sides at the same time, and was given instructions.

Suddenly.

A handsome old man wearing sunglasses and an Italian handmade suit walked in, he patted Yan Zun's shoulder, smiled and said in a sympathetic voice: "What, you haven't caught your apprentice yet?" It's okay, let's not be in a hurry, take your time." Hehe, I like Comrade Xiao Wang more and more, I can make you so deflated. ”

"Little Feifei, you are also one of the most powerful men in the world. Yan Zun glared at him angrily, "Can you take care of your identity, and come out wearing such a body?"

"Today is Sunday, I just came back from the service, can't I rest?" Pope Bright pulled a chair and sat down, took off his sunglasses, and said with a straight look, "Seriously, sitting here and watching you eat is the most comfortable and happiest thing in my life." This gave me a new interpretation and understanding of the word 'schadenfreude'. The weather is really nice today, it's worth a drink. ”

"Smack!"

The Pope of Light snapped his fingers, took a leisurely sip of an extra glass of wine in his hand. It's clear that he doesn't go to work today and comes over to watch a good show.

"Hehe, do you think that stinky boy can escape the palm of my hand?" Yan Zun smiled confidently, "I don't believe it, he can escape my big search line." ”

"Have you checked the planes going back and forth?" said the Pope of Light, pretending to be concerned.

"In this operation, I have gathered all the forces I can muster. Even if he dares to get on the plane, he will be searched and arrested as soon as possible. Yan Zun said indifferently, "All the waterways, I have also been tightly deployed. By the way, he used the deep sea to escape last time. In response to this, I have already called several deep sea demons from the Demon Hell, they are not only very powerful underwater, but also can communicate with the creatures in the sea. ”

"Bang bang!" said the Pope of Brightness, applauding, "You really have enough money to catch Comrade Xiao Wang." It's just a pity, why haven't you caught him yet?"

"I'll catch him. “

"Why haven't you caught him yet?"

"You ......" Yan Zun was so angry that he almost vomited out a mouthful of old blood, and suddenly, his eyes lit up and said, "Little Feifei, do you think that kid will go the opposite way, go through the Guò Sahara Desert, cross the whole of Africa, and then bypass Antarctica...... That's right, that's right, I'm barely defended in that direction......"

...... (To be continued.) )