Few people know that tsunamis, like natural disasters such as earthquakes, have a standard grading system.

This system was originally established by island scientists, the most tsunami-hit of all countries in the world, island nations, by their countries. The name of the person who made this classification was Takeo Watanabe.

This is also a little-known name, under the authoritative "XX Encyclopedia" of Chinese websites, it is the name of a cartoonist. But there is more than one person with this name, there is another geophysicist with the same name and different surname, and even less well-known, Takeo Watanabe, who has made great contributions to the cause of science.

It is a pity that the scientific undertaking of the tsunami is based on numerous disasters.

Due to their geographical location, island nations are the countries most frequently hit by tsunamis in the world. For example, the epic 1960 earthquake, the strongest earthquake ever recorded, caused a tsunami that spanned 20,000 kilometers of the Pacific Ocean and struck the island nation.

For the vast majority of natural disasters, the intensity is graded according to the index standard.

For example, a magnitude 7 earthquake releases 38 times more energy than a magnitude 6 earthquake, while a magnitude 8 earthquake is 38 times more energy than a magnitude 7 earthquake.

In other words, the earthquake intensity is +2, and the energy released is increased by about 1000 times (38*38).

This is an exponential increase in the form of energy with the number 38 as the base.

The same is true of a tsunami.

Tsunami intensity +1 increases energy by a factor of four, which is an exponential increase based on the number 4.

The most intuitive tsunami wave height is the exponential growth situation based on the number 2.

Xu Liang sat silently in the car, carefully searching for relevant information on the Internet, now the 4G network is not very good, intermittent, but the important thing is that the more he looks at these numbers, the cooler his heart becomes.

He saw that Duan Han wrote a tsunami prediction level of 13 on the report of the experimental data.

A Category 13 tsunami?

How big is this tsunami?

Xu Liang studied very poorly when he was in school, except for mathematics. Because counting money is really a skill that requires a special talent for mathematics. So Xu Liang is also very attentive in this regard.

Category 13 Tsunami...... He carefully counted it in his mind countless times.

If a Category 1 tsunami is calculated as a two-meter wave height, what is a Category 13 tsunami?

It's the twelfth power of 2.

He took out his phone and did the math, and he got a number - 4096.

The unit is meters.

Doesn't seem very intuitive.

Xu Liang thought about it, how high is more than 4,000 meters?

If you talk about how long 4000 meters is, then ten laps of the playground is about the same. But how "high" is the question...... When I was a child, the residential building was ten floors and less than 40 meters. The Empire State Building in New York is more than 400 meters high, making it the tallest building in the world in the 20s of the last century.

The tallest building in the world is now the Burj Khalifa, which is more than 800 meters.

What is the concept of more than 4,000 meters?

5 Burj Khalifa?

Xu Liang thought about it, the key is a tsunami!

It's a wave!

Lang Gao five Burj Khalifa?

The average altitude of the Tibetan Plateau is 4,000 meters!

Waves rushing to the Tibetan Plateau?

Mount Everest is more than 8,000 meters, and the tsunami washed halfway up the mountain?

The more Xu Liang thought about it, the more he felt a cold sweat.

He didn't have any concept of 4,000 meters, but thinking of these things that existed in reality, Xu Liang's cold sweat became more and more.

Ten years ago, there was a popular film called "2012 Doomsday", which seemed to have a tsunami, and at that time it was also known as the best film with 3D special effects after "Avatar". This scene is also seen in the recent "Interstellar", which is a wall of thousands of meters of water. It's scary to watch.

But that thing is a movie theater!

After all, I was still chewing popcorn and drinking Coca-Cola, and when I felt too scary, I teased the girl next to me and teased the handsome guy, and it passed. But this time, it seems to be true?

Xu Liang rubbed his temples and asked Duan Han: "Is there really level 13?" ”

Duan Han sat in the co-pilot, and she didn't speak at first. Then, she handed over both reports to Xu Liang.

"You can take a look at these two reports, one is the analysis I made, and the other is the analysis made by the scientists of the institute, which is likely to be made by Academician Xu, you can compare them."

Xu Liang looked at it seriously.

Xu Liang has never read a data analysis report seriously since he was a child. But this time he looked very seriously.

Duanhan marked the number "13" directly in the report.

The other report does not show the grade, but gives a more comprehensive and detailed analysis through the total reserves of combustible ice on the global seabed, the amount of oxidizer, the energy released by the tsunami, the altitude, gravity, impact force and other factors. This is also a more formal way to write a paper.

But the conclusion is the same: both reports believe that if all the combustible ice on the global seabed is detonated, the height of the tsunami will reach 4,000 meters or more.

The whole world will be destroyed.

Xu Liang read it seriously, and then looked up at Duan Han. The eyes of the two finally met.

When was the last time Lao Duan looked at himself with such serious eyes? It's the first time she's been by herself, right? How many years have it been?

Xu Liang only saw seriousness in her eyes.

Xu Liang thought for a long time, and finally summed up: "In other words, we humans have been living on the powder kegger?" ”

Duan Han: "Yes. ”

Xu Liang: "There are fossil fuels hidden under the sea that are larger than the yield of all nuclear bombs in the world? ”

Duan Han: "Yes. ”

Xu Liang: "As long as there is a Mars, even if it is a Mars in the water, these fossil fuels can all explode?" ”

Duan Han: "Yes. ”

Xu Liang: "And as long as it is blown up, it will be a tsunami several kilometers high!" ”

Duan Han: "Yes! ”

Xu Liang: "The whole world is done!" I stole so much for nothing, and I had to die in the tsunami anyway! ”

Duan Han nodded heavily!

Xu Liang finally couldn't hold back and asked the most critical question: "Then I wonder, where did this original Mars come from?" ”

His question is not unreasonable, but it is very critical and intriguing.

The total reserves of combustible ice on the ocean floor of the world, which have been available to all mankind for nearly 1,000 years, were formed because of hundreds of millions of years of organic precipitation in the oceans that were eventually purified into methane through microbial reactions and accumulated as hydrates on the ocean floor. This process has been going on since the formation of the oceans, so the question is very reasonable: why didn't this methane explode for hundreds of millions of years, but it was blown up at this time?

"I can't analyze that." Duan Han, "Scientific analysis is not a guess, I must have data." But I know one of the most basic guesses! ”

"You say."

Duan Han: "Since all these offshore water and methane-rich mines have been blown up, and they have been blown up for unknown reasons, the methane-rich mines in the deep sea of the ocean also have the possibility of exploding!" ”

Xu Liang said helplessly: "This is a very reasonable guess, we don't know why these mines are blown up for the time being, but I know that human activities cannot detonate these mines at the same time, and you are very right." As long as one blows up, the others may blow up, whether we know the reason for it or not. ”

Duan Han: "So, boss, you can give me a word, what now?" ”

Xu Liang: "The question is not what we do now, but to see what others are doing, such as ...... Those armies. ”

Duan Han: "Army? ”

Xu Liang sighed: "Do you remember, I told you." It's all connected. Did you think of it? ”

Duan Han had an inexplicable expression on her face, then she pondered for a moment, and then suddenly realized.

Xu Liang made a helpless expression at her: "Figured it out?" ”

"Understood."

Xu Liang: "People's hearts are dark, aren't they?" ”

Duan Han nodded, but he was a little hesitant: "I ......"

Xu Liang patted her on the shoulder: "Don't think about it." We have a clear division of labor, remember no, you take care of technical issues, I'm in charge of other issues, so don't think about these things. ”

Duan Han: "Boss, I still think it's ......"

Xu Liang interrupted her: "I'll arrange things, and I have come up with a few good plans." If a tsunami of this magnitude does happen later...... Maybe we can find a way to get through it! ”