I tried several times, and each time the maglev device was started, it would inevitably trip within a few seconds.

Lin Han can finally be sure: this magnetic levitation globe consumes too much electricity, and household electricity can no longer meet it.

Sitting on the side seat, looking at the huge globe, he couldn't help but bang on the table and ponder.

There are two common magnetic levitation technologies, one is normal conductive magnetic levitation, which is the technology that the globe is now utilizing, that is, it uses electricity entirely to maintain magnetic levitation.

The other is superconducting magnetic levitation technology, which uses the diamagnetism of superconductors to achieve magnetic levitation.

A superconductor is a conductor with a resistance of 0 at ultra-low temperatures. Of course, limited by the measurement technology, the 0 resistance here is not "0" in the true sense, but only an infinite approximation.

More than 100 years ago, scientists stumbled upon the discovery that when the temperature of a conductor approaches absolute zero, it exhibits some strange electromagnetic properties, such as the loss of resistance and miraculous diamagnetism.

It's just that superconductors are diamagnetic. But it also consumes electricity, after all, the superconducting state will only appear at low temperatures, and this low temperature is not the low temperature of "it's time to wear a cotton jacket", how can it be below minus 80 degrees.

Moreover, the setting of superconducting magnetic levitation is much more complicated, and it is inconvenient to maintain and repair. So Lin Han thought about it a little and vetoed the superconductivity scheme.

As for installing booster equipment at home, or applying for industrial electricity supply from the power department, it will inevitably be a lot of trouble, but after thinking about it, he decided to ask Dr. Yang.

"Dr. Yang, this globe consumes too much power, and it can't be left at home. ”

On the other end of the phone, Dr. Yang seemed stunned for a moment: "Put it at home?"

"yes, this globe is what I'm going to keep at home. ”

Dr. Yang was a little embarrassed: "Ahem...... Why didn't I pay attention to this, at first I thought you were going to put this globe somewhere in the company. ”

Actually, anyone would think so.

A behemoth with a diameter of almost five meters, who would keep this thing at home.

Lin Han had a little headache: "Then can you find a way to reduce the energy consumption of this magnetic levitation device a little, to the point that household electricity can bear?"

"I'm afraid not, it's already very energy efficient. ”

Lin Han thought for a while: "Then can you use permanent magnets to achieve magnetic levitation?"

"According to Ensho's theorem, permanent magnets cannot be constructed with complete magnetic levitation...... This design is already the most convenient solution. ”

Lin Han patted his forehead: "Can it only be boosted?"

Dr. Yang muttered, "Almost. If you must keep the globe at home, you can either boost it, apply for industrial electricity, or install a generator in your home. ”

Just when Lin Han was a little hesitant, Dr. Yang seemed to think of something: "Why don't you install a solar power generation device at home?" ”

Lin Han was stunned: "Solar?"

"That's right, it's green, pollution-free, and inexhaustible free solar energy. Dr. Yang seemed a little excited and introduced it eloquently.

"Solar is a good thing, it's environmentally friendly, and it's not a hassle to set up. On top of that, solar power is generated for self-consumption and can be sold to the grid if there is excess electricity. ”

Lin Han was a little surprised: "There is still such a thing?"

"I have this installed in my house, and every month the State Grid buys surplus electricity...... Mr. Lin, the available light area of your home is definitely much larger than that of an ordinary person, and it is more than enough to supply that globe. ”

Lin Han thought for a moment: "If you set up a solar power generation device, how long will it take?"

"It's very simple, I can help you design a plan, and then count the installation, it will only take about a week. And the equipment is basically on the roof, which does not take up indoor space. ”

"Then trouble Dr. Yang. ”

"No trouble, no trouble......"

The installation of solar power generation equipment is not only environmentally friendly but also novel for Lin Han. From a practical point of view, it is also very convenient.

Not to mention anything else, with one more solar power generation, plus the original household power lines, power outages and the like, basically will not happen.

……

Taking advantage of this free time, Lin Han also went out to buy a lot of things to enrich his mansion, after all, such a large space, it is really unreasonable to be empty.

First of all, some furniture and decorations were added, such as a yellow rosewood chair, a small leaf red sandalwood coffee table, samurai armor, celebrity calligraphy and painting, ancient sculptures, blue and white porcelain......

Then there are all kinds of electronic devices, such as top computers, virtual reality computer rooms, magnetic levitation skateboards......

And, of course, a Ferrari sports car, a private helicopter and an indoor gym.

After buying this pile of things, tens of millions of dollars were directly spent.

In addition to this, he also hired several cooks, nannies, housekeepers, and security guards, so that the huge mansion was quickly filled.

In such a scene, as long as Lin Han walked around the house, he felt in his heart that his consumption level was finally complete......

Although the mansion is spacious and luxurious, his favorite place is still the study with the globe.

After all, the place is large, although it is a study, it also has a bed and its own bathroom, not to mention that it is connected to a huge basement with a security level comparable to a bank vault, which is simply a holy place for otaku.

It's just that although the study room is large, the three bookcases that stand up to the sky are empty, and there is room for thousands of books, only a few stacks of books are scattered near the table.

Looking at these bookcases, Lin Han was a little silent for a while.

As an orphanage, buying books is often not a casual thing.

Other people's children can buy a lot of books on a whim, and then wait for three minutes for the heat to pass, and then put them aside and never care about them. But he apparently didn't have that condition when he was a child.

If you buy a book and don't read it, there is a special title called "deception and stealing fame"...... This sentence was said by the old dean knocking on the table one by one, and he remembered it vividly.

So for Lin Han, it doesn't matter if other things are bought and put away, and they are used to pretend to be forced. But a book worth a few tens of dollars a book must not be bought blindly.

At this moment, there was a faint movement outside, mixed with bursts of conversation, which seemed a little noisy.

Lin Han immediately got up and walked out of the study, but saw that Dr. Yang had just come over with a group of people, ready to go to the roof to install solar power generation equipment.

"Mr. Lin. Dr. Yang hurriedly came over.

Lin Han nodded slightly: "Can you pretend in three days?"

"If nothing else, the globe will be activated the day after tomorrow. Dr. Yang said.

Lin Han seemed to think of something, and then said: "By the way, Lao Yang, can this solar power generation equipment be installed on a skyscraper?"

"Skyscrapers? Of course, isn't that what Apple's headquarters do? Dr. Yang lifted his glasses, "But Apple has spent a lot of extra money for this design." ”

Lin Han thought for a while: "Vientiane to the eighth power, you should know a little bit." What do you think of the 256-meter tower with solar power generation equipment?"

The completion of the construction of the tenth-power giant tower is relatively far away. Therefore, the skyscraper plan announced by Vientiane is temporarily replaced by "eight power".

Of course, even the announcement of this "eighth power" plan still caused quite a stir, especially since this plan was released by Vientiane in full swing.

Because of this news, many people's eyes began to focus on Yunzhou City, a 3.5-tier small city.

As for the local area of Yunzhou, the development zone plan that was already about to move has become lively again, making more people realize that the joint establishment of the "Qingnan Development Zone" by the three counties is probably really a certainty.

Dr. Yang muttered, "I'm afraid the budget will be high...... An increase of several hundred million is a certainty. ”

Lin Han nodded disappreciatively and didn't say anything.

At this time, Gaia's voice suddenly sounded in his consciousness: "Actually, if you want to build a skyscraper, I have a way to help you save a lot of money. ”

Lin Han was stunned for a moment, and then said to Dr. Yang: "Old Yang, you are busy first, and I will ask the chef to prepare something to eat for you." ”

"That's troublesome Mr. Lin. ”

Lin Han went to the kitchen to say a few words, then returned to the study and closed the door, before he consciously asked, "Gaia, what are you talking about?"

Gaia explains: "To build a skyscraper, the foundation must be a big problem. At least in my opinion, the construction of underground facilities in the construction process of every skyscraper is a very tedious and huge process. ”

"Is it possible to simplify the process?"

"As long as you get intermediate geodetic clearance, you can change the geological structure on a small scale, so that the foundation construction is greatly simplified, which greatly reduces the cost and construction time. ”

Change the geological formation!

Lin Han couldn't help but be shocked when he heard this.

Although he didn't understand architecture, he only had to think about it to understand how important the geology could be for a supertall building like a skyscraper.

Improving the geological structure first, and then building skyscrapers, there is no doubt that the cost of construction will be reduced.

If you can save a lot of money, you can add not only solar power generation equipment, but also some of the remaining parts.

Gaia continued at this time: "In addition, the upgrade task in the later stage of the Earth Authority is to eliminate the seismic zone. If you erase the seismic zone near Yunzhou, the construction of the building will be much easier. ”

Elimination of seismic zones......

The seismic fortification intensity of a skyscraper can be reduced by even one degree, and the cost and time savings are immeasurable. The risk of the building itself will also be greatly reduced.

Lin Han felt his heart skip a beat: "I can also eliminate something like an earthquake zone?"

"Absolutely. Doesn't it mean that as long as the kung fu is deep, the iron pestle is sharpened into a needle. As long as you put in enough time and effort, nothing can't be done. Gaia said.

After a pause, she continued: "However, eliminating the seismic zone is a grinding effort, so you should not think about it for the time being. ”

"Before the Eighth Power was built, as long as you could get the intermediate earth clearance and improve the local geological structure, it would already be very good. ”

Lin Han nodded, and then asked, "In addition to the intermediate earth authority, are there any other conditions needed to improve the geological structure?"

"You need to have enough physical fitness, as well as the corresponding knowledge of geomechanics. ”

"If you don't have a lot of physical fitness, whether it's improving the geology or eliminating the seismic zone, it's going to be a very long process. After all, conservation of mass and energy is one of the highest laws of the universe, and it is impossible for you and me to violate it. ”

She continued: "Of course, you also need some knowledge, otherwise you don't know what improving geology is, and it's hard to find an efficient way to deal with it." ”

To improve physical fitness, Lin Han now has three ways. One is to purify sewage, the second is to plant trees, and the third is to exercise directly.

As for geomechanics......

Lin Han looked at the empty bookcase on the side, sighed slightly, and could only study hard.

Of course, geomechanics is also part of higher education, no matter how efficient he is, it is not a good way to gnaw books alone, so he has to find a professional to take him fly.

……

Two days later, Lin Han's entire mansion was equipped with solar power generation equipment.

Pure energy from the distant sun is converted into powerful electricity by the equipment, which replaces the power supply from the grid and runs in the mansion.

Lin Han came to the study, plugged in the magnetic levitation base again, and pressed the "levitation" button.

"Drip-"

The maglev base immediately flashed a burst of light blue light full of sci-fi temperament, and the huge globe trembled slightly, and then slowly rotated while rising steadily.

Lin Han showed a bit of anticipation.

The globe slowly rises, gradually floating in mid-air, and rotates evenly with the rhythm of the blue light on the base.

Mountains and rivers turned before his eyes, and all the lands and seas could be seen at a glance, and every country and region could be clearly found......

The world's largest maglev stereo globe - handsome!

……

The giant globe is no problem, and with this artifact in the future, the map information under Lin Han's back will naturally be more detailed, not only with country and region information, but also with terrain and landforms, at a glance.

In addition to the practical use, this thing is placed in the study, and the forced grid is too high, so that Lin Han can't be more satisfied.

The next day, after Lin Han finished eating under the service of the servants, he asked the driver to drive out and went straight to his alma mater, Qinglin County Middle School.

Lin Han is now very famous, and he is among the best among the outstanding alumni in Qinglin County, and is admired by many younger students.

So in order to avoid trouble, he neither drove a Maybach nor a Ferrari this time, but drove Wuling Hongguang directly.

This Wuling Hongguang was a low-key car specially prepared by him, and after driving out, it was really calm all the way, and it did not attract anyone's onlookers and attention.

Although the driver's driving experience is not very good, Lin Han himself likes this general feeling of private service.

Wuling Hongguang rode into the dust, and soon carried Lin Han to Qinglin County.

However, when I entered the school gate, a lively sound came from afar, and through the car window, I saw two rows of people standing on both sides of the county, all smiling, as if they were welcomed......

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