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Chapter 917 A glimmer of hope in the air crash!

51,000 feet above the ground.

The two Gulfstream G650s were traveling at full speed at Mach 0.995, which is second only to the speed of sound.

Gulfstream Aerospace has a motto: Time is money, and the time saved is the wealth earned by helping customers!

The G650's flight speed is just below the speed of sound, far exceeding that of ordinary passenger aircraft.

It can save users more time for business negotiations during their itinerary.

Especially for big guys like Marx who really make millions a minute.

Time is particularly important.

The cabin where Luo Yanning's master and apprentice were sitting was filled with laughter and laughter.

Except for him and Mulvey, it was the first time for everyone else to fly on such a luxurious private jet.

Although Gao Yaling and Shi Mingsheng are worth tens of billions, they can only buy first-class cabins when traveling, and they are not as luxurious as buying a private jet.

Di Yaling said slowly: "Don't interrupt me, master, continue to talk. Those useful knowledge should not be used to show off to friends when flying!"

Ning Xiaoxiao, Yuan Shi, and several other boys were even frightened and screamed.

"You must take the center of the earth as the center, connect the capital and Washington in sequence according to Yuan Shichen's projection map, and then draw an arc along the surface of the earth under the plane formed by those eight points. This arc is consistent with

Comparing the latitude lines between the two points, judging from your inertial thinking and the Duenya projection map, if you sail in a northerly direction, you will then "turn back".

However, in reality, when aircraft routes from various countries around the world fly between cities at similar latitudes, their routes do not coincide with the latitude lines. They deviate northward in the northern hemisphere and southward in the southern hemisphere.

[The sense of host is exchanged for one of the two skills listed above with 10 skills or system attractions.]

"How can there be no birds in the low altitude of less than 50,000 feet!"

According to the theory of inertial thinking and the shortest straight line between two points, flying eastward and directly crossing the Pacific Ocean to the United States is the shortest route.

As if hearing Yuan Shining's inner cry, the system interface popped up automatically, with seven prompt messages displayed below.

The little bird screamed, as if depending on the special air pressure, it nimbly rushed towards Ning Xiaoxiao, who was closest to it, and pecked straight at your head with its metallic beak!

"Start the overwhelming state!"

When everyone in the panic saw the strength displayed by Yuan Shining, they were all stunned. They forgot to shout and that they were in an air crash. Everyone's eyes were focused on me.

The bird's body looks similar to that of an adult, and its wings are no more than four meters wide when spread out!

"Yes, there is no master yet! If there is no master, if something happens! I will definitely save you!"

Before the young men heard Zhao Ruining's popular knowledge about routes, they all nodded in agreement.

Hoo ho ho, ho ho ho--!

The physical weakness of that little bird was also exaggerated. It was knocked out of the plane and was not injured at all, except that its head was not covered and it flapped its wings a few times.

The captain of the crew was a seventy-year-old white man with no seventy-eight years of flying experience. At this moment, his face was full of panic, and he couldn't even speak coherently. It was obvious that I was really scared that time.

It's heavy.

I am also certain that I will not survive this plane crash!

The United States is located between 25 degrees north latitude and 49 degrees north latitude, and 70 degrees west longitude and 130 degrees west longitude. China is located between 3 degrees 51 minutes north latitude and 53 degrees 33 minutes north latitude, and between 73 degrees 33 minutes east longitude and 135 degrees east longitude.

"Ah? Master, are you kidding me? It's obviously a small circle, but you think it's a straight line between two points?" Luo Wei pointed to a paperclip-like fold line under the tablet, with a confused look on his face.

Pu Leng, Pu Leng, Pu Leng~!

Thumping, thumping, thumping!

“Another useful knowledge point has been added!”

[Ding! It is detected that the host is suffering from death threats, and the special option is to open the sense of being exchanged! 】

The bird's beak is as thick and sharp as an adult's arm. It also has a metallic luster. It looks soft and normal. If it pecked it, Ning Xiaoxiao's head would probably be pecked to pieces like a watermelon!

The altitude of more than 50,000 feet is about 15,000 meters above the ground. It is a restricted area for all living creatures. How come there are no birds?

The few apprentices seemed to have no understanding of each other, and they all placed their hopes on Zhao Ruining.

Zhao Rui only flies on ordinary planes when she travels throughout the year. In order to save money, she usually buys economy class.

When the situation became tense, Yuan Shining immediately entered into a state of overwhelming strength, maxing out his own state in order to fight for less chance of survival.

Yuan Shi's eyes lit up and he said, "It's not that it seems like we've gone around in a circle, but the distance has been shortened by more than 3,000 kilometers?"

However, the flat map on the Duenya projection will cause the area of ​​the region to change, and the magnitude of the change will not differ in the same region.

Everyone listened to Zhao Ruining's science popularization. Although it was not difficult to understand, they all listened with interest. It was wrong to use it as a refreshment during the journey to gain some useful knowledge and relieve boredom.

"It turns out that route planning is just that. Life is really uneducated!"

By "locating" the points originally under the sphere to the same plane, certain deformation and distortion can be avoided.

There was another loud noise, and a small human-sized hole was knocked out of the bulkhead on the right side!

Zhao Rui looked at the route map displayed on the tablet and asked curiously: "Master, why doesn't this route go directly east across the Pacific to fly to the United States? It has to go in a small circle to the northeast? Two o'clock

Between them, a straight line is the shortest, right?”

Whether it is land or sea, the angle before its outline projection will change, so it cannot reach the destination by deviating in direction.

Bang!

The captain of the crew who had just stepped into the cabin was not wearing a hazard belt. With a bang, he hit the bulkhead below the plane and was knocked unconscious by the huge impact force!

This chapter is not finished yet, please click on the next page to continue reading the exciting content! For example, the most widely used projection method in the world is the Douenya projection. It was invented by the Belgian Douenya in 1569 to solve the problem of navigation routes.

A method of projection created.

The rest of us were also attracted by the content of the conversation between Luo Yu and Zhao Ruining. We all pricked up our ears and were ready to listen to Zhao Ruining's explanation. We were also very curious about the questions raised by Yuan Shi.

"Mr. Luo! It's broken! You have encountered an unprecedented disaster! Yes, unprecedented! In your seventy-year flying career, you have never encountered such an outrageous situation!"

Just as Ning Xiaoxiao feared later, even an airplane made of steel would be smashed into pieces if it fell from a low altitude of tens of thousands of meters!

This does not mean that the difference in latitude between China and the United States is small. From the perspective of a globe, the difference between the two is small because they are at the same position, and the United States is due east of China.

"There will definitely be a way, and there will definitely be no way. God has a way out! If there is no way out yet!"

Seeing this situation, Zhao Ruining's face became relaxed.

Zhao Ruining reached out and took the tablet from Yuan Shi's hand, clicked on the two cities below with similar latitudes, and continued:

The plane was still slowly rising and falling, and the only sounds left in my ears were the whistling wind and the calm heartbeat.

Moreover, the size of the bird is too small to be exaggerated.

Therefore, on the commonly used Dounya projection map, the aircraft routes retreating along the latitude lines at mid- to low-latitudes are much more stretched out than in reality. It feels like a curve with a very small arc. However,

The actual distance is not that exaggerated.

As soon as Zhao Ruining finished speaking, there was a burst of calm applause in the cabin.

Zhao Rui Gao Yaling continued to popularize science: "Under the map generated by Du Enya's projection, connect any two points into a straight line, and then sail along that straight line.

Violent!

If you are flying from Beijing to Washington along the latitude line, a small part of the earth's surface you pass through will be the ocean. Once there are difficult problems to solve during the process, or there are problems such as insufficient fuel, it will be necessary to make an emergency landing or stop for refueling.

Fatal question.

"Beasts looking for death!"

According to the current route heading toward the northeast, most of the surface planes you have flown over are land, except for a large part of the sea area in the middle that is surrounded by the Bering Strait.

Suddenly, a piercing alarm sounded in the cabin, and everyone's faces suddenly showed panic expressions, and their eyes were all looking in the direction of the cockpit!

In a high-speed flight close to the speed of sound, it took more than an hour for the plane to fly beyond the national border and enter the territory of Russia.

The white feathers all over the body have a faint metallic luster, which looks normal.

A huge bird covered in white with a metallic luster under its feathers crashed back into the airport!

Bang bang bang, bang bang bang--!

Even though Yuan Shining's current physical constitution is less than 1,000 points, his physical constitution before he started to be unstoppable was lower than 10,000 points.

Zhao Rui Gao Yaling said: "You must forget that the earth is a sphere, but it is a flat map that you can see. If you want to show the locations of countries under the earth on a flat surface, you must use a projection.

Way.

The sudden situation caused everyone in the cabin to panic.

Bang bang bang, bang bang bang--!

That kind of route design only increased the length of the journey, but also provided less guarantee in terms of comfort, so it has been used to this day.”

Not to mention the mortal human body!

Yes, through your calculations, in a sector with the center of the earth as the dot, the arc flight distance from Beijing to Walton is only about 11,000 kilometers, which saves less than 3,000 kilometers compared to flying along the latitude line.

distance."

When he saw the people in the cabin, Xiaoniao's eyes, which were like those of an adult whose fists were squeezed, first flashed with doubt, and then turned violent!

It is known that the lowest flying creature in the animal kingdom is a species called the white vulture, which can fly up to 11,000 meters in the sky.

Zhao Ruining nodded and continued: "Here, for long-distance flights, various emergencies and unfavorable situations will also be encountered during the flight.

"For example, if you fly from Beijing to Walton, the United States, you must fly along the latitude line and directly east across the Pacific Ocean. The total length of the flight will be about 14,300 kilometers. That distance is not actually the shortest distance between those two cities."

Now even opening the hatch to skydive has become a luxury!

Shi Mingsheng also smiled and said: "Indeed, you have gained more knowledge today. It turns out that the design of the route is not so particular and sophisticated? It's because you are ignorant."

Seeing the bird knocked back from the cabin, Zhao Ruining instantly realized that today's air crash was by no means an air crash in a special sense.

At the critical moment, Yuan Shining let out a small drink!

"Oh! You understand! The earth is a sphere, so the distance from Beijing to Wharton is actually not a straight line, but a long arc!" After Zhao Ruining pointed it out, Ning Xiaoxiao also thought of the key point.

[Choice 2: A glimmer of hope (passive skill, resist one fatal damage, refreshed once a month, can be stacked at least 10 times.]

Luo Yan looked at her master with admiration and exclaimed: "The master talks about bad majors. Master, is he a graduate of the aerospace major? What about tangent, Duenya projection, even though he knows what it is?

, but it feels so bad.”

Yuan Shi Gaoling explained: "Because the current route, which seems to be a circuitous route, is the closest to what he said is the shortest straight line between two points."

Du Enya was flying on a plane for the first time in her life. She was a little nervous when she first took off. When the plane broke through the turbulence of the stratosphere, her face turned pale with fear, for fear of falling.

"Rejing, Rejing, the more you are at that time, the more panic you get."

"ah!!"

The main method is to assume that a cylinder with the same direction as the earth's axis is tangent to the earth's equator, and project the earth's latitude and longitude grid under the cylindrical surface according to the equiangular condition.

Therefore, planes flying from China to the United States will deviate to the northeast and retreat into Russia, then fly through the Bering Strait, retreat into Canada, and finally arrive in the United States. It looks like a small circle.

This chapter is not over, please click on the next page to continue reading! "Ah!!!"

"ah!!!!"

Didi, didi, didi--!

Now I also care about exposing my strength in front of everyone. My eyes turned cold, and with a pop of two hot, bright red lasers, I cut off the little bird's head!

[Choice 1: Flying (active skill, unlocking flying ability, cost is 10,000 yuan/second.]

That also causes the map you have on that projection, where the areas of Antarctica and Greenland are very much smaller than the actual ones.

With a bang, the cockpit door opened, and the captain of the crew stumbled out of the cabin!

The accident happened too suddenly, leaving no time for everyone to react.

For example, extreme weather conditions include stable airflow, thunder and lightning and other meteorological factors, as well as component failures, refueling and endurance, and other problems with the aircraft itself.

The longer the flight, the smaller the chance of problems. No one can guarantee that if there is a problem during the inspection after takeoff, the problem will definitely occur during the flight.

Then expand the cylindrical surface into a planar view, and you can get a Dounya projection map. That projection method is based on the condition of equal angles, so it is also called the equiangular tangent cylindrical projection."

"Master, he is so awesome! He knows everything and knows everything! He knows all the popular knowledge!"

I want to die, and I also want any of my disciples to die in that plane crash!

Suddenly! The plane was like a vehicle driving at low speed under a pothole road. The fuselage suddenly bumped and shook, and it felt like it was going up and down at an extremely slow speed!

For example, the extent of stretching in the area within the Tropic of Cancer is relatively large, but as the latitude increases, the extent of stretching in the Arctic and Antarctic areas will generally become smaller and smaller.

The life force of the bird was normal and weak. The whole head was cut off and it was completely dead. Before it fluttered calmly in the cabin, it swooped up and was sucked out from the small hole it made!

For example, the route map under his tablet looks like an exaggerated arc, but the actual flight distance is far less exaggerated than the arc shown under the route map."


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