Finding the shortest distance between two opposite points on a sphere should be a geodesic.

Old man Ji held an apple in his hand, held it high for everyone to see, and he used a toothpick to draw a semicircle along the equator on the surface of the apple, which was the geodesic line between the two points before and after the apple.

The circumference of the earth is about 40,000 kilometers, so the length of this geodesic line is 20,000 kilometers, which is the theoretical shortest distance.

Old man Ji stuffed the toothpick back into his mouth, held it like a cigarette, faced everyone in the conference room, and asked with a squint: But can we be shorter?

Yes.

He pinched the sharp toothpick hard, and slowly went straight through the apple in his hand in the eyes of everyone:

12,000 km!

So the tower was built.

As the first giant machine in human history with long-range strike capabilities, it is no longer a short sword for hand-to-hand combat, but a divine bow that kills the enemy for thousands of meters, and the replacement for the "Kerbal Brahma Temple Dragon Thunderbolt" is the new "Bharat Brahma Temple Dragon Emperor Stangang".

The effective range of the Bharat Brahma Temple Dragon Emperor Stangang is one thousand meters, although it is a behemoth with a length of nearly ninety meters and a weight of sixty-four tons, but the range is actually almost the same as that of a sniper rifle commonly used by humans, and the insecticide under the strong magnetic constraint begins to escape after leaving the accelerator tube, and loses its effectiveness at one thousand meters and returns to zero. The range of 1,000 meters is obviously not enough to penetrate the entire earth and kill the snail angel in the sky over South America 12,000 kilometers away, so the human race decided to build a larger, more powerful, and longer range of the Bharat Brahma Monastery Dragon Emperor Gangon, which in the plan is a giant gun 400 meters high and perpendicular to the earth's surface.

Now there are five engineering divisions stationed in Nanshan, and as soon as the order from the higher authorities came, the exploration experts began to look everywhere for a suitable construction site - in fact, there was no need to look up, Chongqing has such a unique advantage, that the tall building stands out from the city's skyline: the Chongqing World Trade Center.

Chongqing World Trade Center is once the tallest building in southwest China, and now the tallest building in human society, with a total height of 280 meters, 62 floors from top to bottom, with an apron on the top of the building, a light rail line at the bottom, looking north at the Jialing River, adjacent to the Liberation Monument, is the CBD in the CBD, the joint index center only took three days to empty all the buildings within 100 meters of this building and its surroundings, and the engineers of the engineering troops, the 151 base and the Science City quickly settled in with large bags and small bags - obviously, It is impractical to build a 400-meter-high tower from scratch like a dry land plucking onions, since there are ready-made high-rise buildings, then it is better to make use of them, Chongqing World Trade Center is the only super high-rise building nearly 300 meters high in the hands of mankind, such a building Chengdu does not, Mianyang does not, Yibin does not, Bazhong does not, so the work falls on the head of 151.

Get through!

Get through it all from top to bottom!

Old man Ji was one of the main persons in charge of the project, and he held the drawings in his hand and signaled to everyone how to penetrate the sixty-two floors of the entire World Trade Center Building and stuff the giant gun into it.

From a certain point of view, Old Man Ji is a complete supporter of God's engineering, he loves magnificent man-made giants, he loves majestic engineering power, he loves the hand of the gods who move mountains and reclaim the sea, he despises missiles, despises conventional weapons, despises all shrinking behaviors, like "mocking wind" This vacuum tube core steam-powered giant machine is his favorite, if conditions permit, he wants to build a 150-meter-long chain saw, which emits smoke and roar like a locomotive when it starts, and the saw blade runs with a strong magnetic field constrained insecticide, It's like the high-temperature plasma inside the tokamak device - that's the weapon that Mock Wind should have.

"Twelve thousand kilometers, is it possible?"

Shang Lu sat on the curb of the road from afar, holding the white helmet on his head, and the glass curtain wall of the Chongqing World Trade Center shone brightly in the sunset, as if it was burning.

"Anti-anti-anti-......"

"Anyway."

"Missiles hit ...... anyway Can't hit that far. Wei Mao sat side by side on the road, turning the white Rubik's cube in his hand, "Use Dayi...... Dead Dead Dead ......"

"A dead end."

"Dead ...... A dead horse should be a live horse doctor. ”

Shang Lu came to the construction site every two days to be on duty, although he didn't know what he could do here, Shang Lu didn't understand civil construction, nor did he understand equipment installation, he could only wear a hard hat and hang around like a supervisor, at first he pretended to point and point, like a leader, and soon the workers saw through him that he was a straw bale and thought he was in the way, and expelled him, and was not allowed to get close to the construction site, so Shang Lu sat there far away and did nothing - nothing to do, he was so busy, he went out in the morning to beg everywhere, Come back in the afternoon to deal with the casualty accident in the workshop, it is rare to have time to take a breath, if Wei Mao does not come to find himself, it would be better.

Wei Mao took up a lot of Shang Lu's time in a daze, this is Shang Lu's most dissatisfied place, Shang Lu wants to be in a daze, he wants to become a stone statue.

After seven months of construction, the intention of the Joint Finger Center and 151 has begun to take shape, they used the Chongqing World Trade Center as the basic framework, transforming it into a three-hundred-meter-high superweapon platform, the original smooth glass curtain wall building now looks as if it is crawling with vines, those exposed cables, towers, sensors, like tumors growing on limbs, it is still growing, not like dead things, Rather, like a living creature.

"So many cables, what are you going to do with them?"

Shang Lu couldn't see the end of the transport convoy at a glance.

"Degaussed."

Wei Mao lowered his head.

"City, city, city...... The advantage of building in the urban area is that there is a ready-made platform to use, and the trouble is that there are too many magnets, hard and soft magnets are everywhere, and I ...... It took us a long time to ...... all the metals we could find within a 100-meter radius."

"It's all cleared." Shang Lu said, "It's really hard to listen to you. ”

"Yes, yes, yes...... It's all cleared, not a single nail has been spared, but ...... However, the reinforced concrete inside the building structure and the iron oxide in the subsoil cannot be removed, so the only way to degauss it is to use cables......"

"How much influence do they have on the Bharat Brahma Monastery Dragon Emperor Stangang?"

Shang Luxin said what the hell is this name.

"Small." Wei Mao replied, "But the fallacy is fallacious ......"

"It's a millimeter, it's a thousand miles."

"Yes."

12,000 kilometers of ultra-long-distance sniping, is a millimeter, a difference of thousands of miles, not to mention blind sniping, from East Asia to South America, this trajectory does not go geodesic, it is a penetrating line, it is necessary to accurately consider gravity, magnetic field, vibration, and even the influence of Coriolis offset caused by the rotation of the earth, at a super large scale of 12,000 kilometers, the muzzle deviates by one arc second, the bullet will deviate from the target by 50 meters, and the muzzle deviates by one arc minute, the bullet will deviate from the target by 3,500 meters, This is the most difficult sniper in human history, and Shang Lu can hardly imagine that humans have this ability, but the Joint Finger Center says that it has.

And the person who has this ability is the one who stammers beside him.