The forum finally ended with a six-day speech, and Qin Fei benefited a lot from a variety of speeches from dozens of scientific fields -- such a casual speech could not allow Qin Fei to learn anything specific for the time being, but it greatly broadened Qin Fei's horizons and heights.

After two days of discussion and exchanges, we came to the main body of this forum, that is, the issue of global warming.

Global warming is an unsolvable problem in the current situation, because - energy! The energy that the Earth receives from the Sun is constant, and even if there is a change, it will not be too out of line; But today there is a lot of nuclear energy on Earth – which means that humans are creating heat out of thin air!

Over time, even if a large number of farmland has been returned to forests, almost more than 80% of the world's green space has been covered, and even deserts have been planted with drought-tolerant plants, it still cannot completely solve the problem of global warming.

Global warming has now become a curse for the earth's civilization.

A long time ago, everyone said, since there is a lot of energy, then store it! How to store, scientists have used their ingenuity, and they have really found a way - planting trees! In the words of scientists, all life on Earth is solidified solar energy!

Planting trees and restoring the primeval jungles on the earth can not only absorb carbon dioxide, release oxygen, purify the air and other benefits, but also store heat (energy); Store heat in the plant. And a large number of plants after growth are a good resource in themselves. It's a virtuous circle!

In the past 300 years, this method has solved the problem of global warming, and the global environment has finally stabilized.

But then there is the problem - the energy required by mankind is always endless, and nuclear energy is constantly expanding, so that energy consumption increases dramatically, and there are more and more nuclear power plants; It's a vicious circle.

Every nuclear power plant is a small artificial sun. is continuously releasing heat; Whether it is nuclear fusion or nuclear fission, for the earth's environment, it is adding heat "out of thin air".

Now, the increase in heat is finally close to the red line of equilibrium again, and the problem of global warming is once again in front of the earth's civilization. The earth is the foundation of humanity. Who does not allow any loss. But it's easier said than done to cool a planet!

This is not a person, you can blow the fan, blow the air conditioner, swim, and eat sorbet when it is hot. Today's situation is like installing an air conditioner in an enclosed space, cooling a space and scorching a space; But the energy of the entire space has not disappeared. The energy generated by the air conditioner is diffused into this enclosed space. The end result is that the overall temperature of this enclosed space is slowly rising!

And the earth as a whole is this enclosed space!

"Water from the Earth is pumped into space to cool it and then put it back into the ocean to cool it down. It's the equivalent of ice cream for the earth! A scientist said.

It didn't even take a minute for the whimsy to be dismissed; Scientists speak for themselves, and the amount of energy it takes to lift water into space is enough to make water boil thousands of times. All of this energy will remain in the atmosphere. So, the idea was clicked.

"What about cooling the air directly? Air above the Earth is extracted directly from space, cooled and re-injected into the Earth. "New scientists have come up with ideas. It looks good, at least Qin Fei thinks it's feasible, there is no need to raise seawater, and directly extract air from outer space to cool it.

But it was still dismissed, and the idea seemed feasible, but the atmosphere above the Earth was thinner than expected. Trying to do that would be a huge unimaginable undertaking in itself; In addition, in order to float the device at this altitude, it is necessary to overcome the friction of the rarefied atmosphere to fly around the ground, which requires constant acceleration. Eventually, this energy will also fall into the atmosphere.

Finally, it is basically impossible to adjust the climate directly by means of cooling through calculations. Even if a certain method can be successful, the huge project will directly drag down the industrial system of the earth's civilization.

Subsequently, it was proposed that suspended grains should be sprayed in the atmosphere to reflect sunlight; But as soon as the idea came out, the climatologist scolded him for not having enough air pollution.

Immediately it was said that we sprayed flakes of glass between the earth and the sun to intercept some of the sunlight; Soon astronomers and space meteorologists were screaming - you don't think space is messy enough, are you? In space. Fingernail-sized shards can cause serious trauma to an aircraft, and if there are countless fragments, they can wear out any man-made object in space.

It is conceivable that if you put some flakes between the earth and the sun, you can maintain stability even for a short time. But after a long time, it will inevitably be thrown everywhere by the complex gravitational pull of space. The solar system is not only about the Earth and the Sun, but also about the Lagrange point (a relatively stationary point). Eight planets orbit the Sun, and in fact, the gravitational field of the solar system changes all the time.

How about placing a large number of mirrors from the ground to reflect sunlight from the equatorial part into space?

After urgent calculations, we have to regret to announce that the idea is good, but it can only be said that it is better than nothing, and it will cause unimaginable damage to the earth's ecology.

Later, some scientists pondered whether it was possible to develop a large number of Thor's engines, which are devices that can convert thermal energy into magnetic energy and then into electrical energy. This is a "heat engine" that is very suitable for today's earth. Searle engines in laboratory environments can reduce ambient temperatures to sub-zero temperatures. Therefore, if we produce a large amount of energy, we can extract all the heat from the atmosphere and inject it into the power grid, saving energy for the development of the earth.

It's a good idea, and it's built on a workable foundation. And the Thor engine can be built on the moon and then airdropped to the earth for use. The world's top scientists discussed for a long time and finally finalized the first feasible method.

But this method is not so perfect, which will inevitably use countless Searle engines, because the efficiency of Searle engines is not as high as imagined, and its manufacturing cost is not low, maintenance trouble; Therefore, this can only be used as a fallback.

"Is there anything better? To be feasible, preferably simple and feasible. The Searle engine can only be used as a backup. Now that the earth has begun to have a fever, we can't wait too long. "The scientists quarreled with each other, and several languages were rampant, even if there was a translator, it made Qin Fei dizzy.

"It's noisy!" Zhang Jianfeng's face was not good-looking, this guy finally reacted, he was ignored on the forum this time!

"It's noisy." Qin Fei looked at the squabbling scientists, but he didn't expect that these top scientists would also roll up their sleeves one day, and they would quarrel one by one. No, Qin Fei saw Dean Long Wenjie push a disagreeing Korean scientist to the ground.

"These scientists are definitely taking advantage of each other's fights! I'll guarantee it with tonight's dinner! "Zhang Jianfeng is a gritted tooth at the moment. But it can be regarded as sanity, knowing that he is still a little different from a freak like Qin Fei; There were more than 300 elite students from all over the world, but there were only a few who were really named, just a dozen.

However, at this time, Qin Fei saw the thunderous global warming propaganda video, and suddenly his head cramped...... Well, in a flash of inspiration, I actually thought of a way!

Suddenly, it seemed that the explosives had encountered an open flame, and in an instant, Qin Fei's ideas were perfected, and he even roughly calculated some of the data.

100% feasibility! Qin Fei's eyes widened suddenly.

Gu Qingyan has already left, such a venue is obviously not suitable for gentle women; Qin Fei could only find Dean Long Wenjie directly.

"What's the matter!" Long Wenjie was rolling up his sleeves and fighting...... Well, reasonable; I was very dissatisfied with being disturbed by Qin Fei.

"Principal, I have come up with a method that should be more than 99% feasible." Well, Qin Fei was a little modest, really a little. (To be continued.) )

PS: I accidentally wrote more than 2,000 words, and there will be a change later