Chapter 338: 10,000 Meters Underground

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"The depth of the deepest Mariana Trench on Earth is only 11,000 meters. If converted into kilometers, it is 11 kilometers. If I dig through this tunnel, it is equivalent to digging through seven Marianas." Na Trench, after such a simple calculation, I immediately feel even less motivated.

Moreover, apart from the Mariana Trench located in the ocean, the deepest cave that humans can dig is only 12,000 meters. More importantly, this cave was excavated during the former Soviet Union. Can reach deeper distances than this.

In other words, since the spiritual energy has been revived, will the awakened ones have dug through the earth's crust? Or some awakened person with the ability to dig holes dug through the earth's crust under the order of the empire for the purpose of scientific research? "

Zhang Yanhang thought about it carefully, and felt that it was possible to want to be both. After all, apart from hunting monsters in the world of ashes, the awakened people were really free most of the time.

Therefore, among the millions of awakened people in the empire, there happened to be one or two awakened people who were bored and wanted to find something to do, or who dreamed of digging through the earth since they were young.

It is even said that some awakened people who have read Verne's "Journey to the Center of the Earth" may think of digging a tunnel to the center of the earth.

By analogy, the awakened person who has watched Liu's "Earth Cannon" may also be born to dig a straight passage for the earth, so as to realize point-to-point rapid movement and create ultra-long-distance shooting with the diameter of the earth as the acceleration range The true meaning of the earth cannon (massive super electromagnetic gun).

"But after all, it is also the era of spiritual energy recovery. Even if we really dig through the earth's crust, it is meaningless. There is no way that there is actually some big treasure left over from the previous spiritual energy recovery hidden underground, right? Forget it, let's not think about it." That's all, anyway, even if the earth's crust is really dug through, it doesn't have much to do with me.

So, I choose option two and dig seventy-seven kilometers down. "Although seventy-seven kilometers is also a number that is completely unimaginable for normal humans, Zhang Yanhang is not very worried that he will fail to dig. After all, as long as he makes a choice, he will definitely be able to complete it with the blessing of multiple choices. this option.

It’s just that the specific time factor is still somewhat uncertain because there is no clear time marked in the options. It may take Zhang Yanhang a week to completely dig this tunnel. That’s right, although the digging has not yet started, Zhang Yanhang It feels like I only need a week at most to complete this tunnel.

After finishing the options, Zhang Yanhang checked his energy value, and found that he didn't consume a lot, "It seems that this option that simply helps me find a direction is really not a difficult option."

"Let's start digging directly. I have about four days to dig now. Excluding the sleep and rest time, I have at least 80 hours to dig the tunnel."

Zhang Yanhang turned his body ninety degrees to the left, first turned on the stopwatch, and immediately began to shake his fists with all his strength against the red iron rough stone wall on the left.

Bang bang bang!

A series of loud sounds like bomb explosions sounded continuously, and Zhang Yanhang's fist hit the wall at a high speed of dozens of punches per second, making large cracks and gravel on the wall, and the broken stones and smoke flew all over the sky.

Large chunks of raw red iron stones continuously sputtered and flew from the wall, most of them flew along the gaps in Zhang Yanhang's body to the distance, only a small part hit the surface of his body, but that was comparable to the impact of bullets When the power faced the energy shield, it couldn't even stir up the slightest ripple.

After punching continuously for a minute, Zhang Yanhang turned off the stopwatch, and then observed the distance he had traveled with the help of "Auspicious and Avoiding Evil", only to find that it was 30 meters. , but this speed is still a bit too slow.

"

Zhang Yanhang did a simple calculation. Based on the calculation of penetrating half a meter of wall per second, he can only penetrate a distance of 1,800 meters per hour, and the total depth of the tunnel is 77 kilometers, which means that even if he does not sleep It would take forty-three hours to penetrate the tunnel continuously at this speed.

Not to mention that Zhang Yanhang is actually unable to maintain the current speed at all. After all, if the tunnel is dug straight downward, the hematite ore smashed by him will not collapse and fly to other directions as it is now, but will fly in a short period of time. After being lifted into the air, it falls back to the original place under the influence of gravitational potential energy.

This means that after breaking a part of the red iron raw stone, Zhang Yanhang must first clean up this part of the red iron raw stone, and then he can continue to excavate the lower red iron raw stone. If nothing else, it must be more time-consuming than simply smashing the raw red iron stone.

After all, even if Zhang Yanhang can take this part of the gravel in his waist bag, but the waist bag also has a storage limit, and it must be stored and withdrawn as a whole. He must first pack the gravel into a whole and then put them into the waist bag together. Otherwise each piece of rubble would occupy a separate grid.

Moreover, because the tunnel was dug vertically downwards, due to the force structure of the human body, Zhang Yanhang would definitely not be able to swing his fists normally. After all, he couldn't stand on his head while swinging his fists, right?

Zhang Yanhang can neither fly nor have the ability to float in place, so there are only two possibilities for making Zhang Yanhang stand on his head while waving his fists. One is that Zhang Yanhang supports the ground with one hand, and the other hand is responsible for digging the tunnel .

But in this case, because the power of one hand is missing, the overall digging efficiency will be reduced by at least half.

Another way to dig the passage upside down is to use Zhang Yanhang's legs to clamp himself on the stone wall of the passage, and then use this to free his hands.

Using this upside-down method with both legs stuck on the stone wall to excavate the passage, although it seems to be feasible to a certain extent, will also lead to a decrease in excavation efficiency.

After all, Zhang Yanhang is not a reptile. You want him to move forward normally while being stuck on the cave wall flexibly, and at the same time swinging his fist at high speed is obviously not an easy task to accomplish.

Therefore, at this time, Zhang Yanhang thought of a more feasible method. This method allows him to dig tunnels while standing. Crack the ground with frantic stomps to dig tunnels.

Well, I have to admit that the feasibility of this method is not very high.

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