The tide of the Sea of Death has subsided, although the flood has not receded, but there is no wind and waves, relying on the solid outer wall of the base and the huge iron gate, the flood outside cannot enter, Lin Feng and the people can rest with peace of mind for the time being, especially Lin Feng, he consumed a lot of energy in order to deal with monsters, and took advantage of the tide of the Sea of Death to replenish the power of death.

On the other side of the continental world, since Lin Feng broke the seal in the underground world and let the blood pool explode, the underground world has become another desperate world, with a highly poisonous blood pool rushing and flowing in the underground world, the unsuspecting people in the underground world were drowned by the blood pool that suddenly appeared, the deadly toxins and the people without water were all killed, only a small part of the people, such as those in the Martial Academy, sensed the destruction of the seal in advance, and prepared for protection before the blood pool broke out, and only the Martial Academy was not flooded by the blood pool.

At the entrance to the underground world, Agoura's heart was less than half a meter away from the pool of blood, and the people guarding the entrance were completely unmoved, as if these things had nothing to do with them, and their duty was only to guard the entrance.

The outbreak of the blood pool has stopped, the distance between the blood pool and the heart is even smaller, it seems that only a small wave can make them completely contact with each other, and at present, the people of the martial arts academy are desperately resisting in the protective shield, and their protective shield will not be replaced for long, and the toxins in the blood pool can also play a role in the energy, so although the protective shield is not destroyed now, the role of protection is getting smaller and smaller.

"Dean, the shield is dying, what are we going to do?"

The disciples of the Martial Academy had already begun to panic, at the beginning, they were not afraid at all because they had a protective layer, and they were not worried about the life and death of the people outside, but now the people in the underground world have become indifferent to this point, and they only care about themselves.

"The martial academy is so big, the energy protection layer can't last long, our hope is to leave the underground world as soon as possible, but the few guards at the entrance of the underground world are not easy to deal with."

The person who answered the question was the new dean of the Martial Academy, that is, Ru Yan, who was directly involved in the zombie experiment, he advocated that all the humans in the underground world should return to the upper world, and in order to survive well in the upper world, they must not be afraid of the threat of zombies, so he and the people in the relevant underground world conducted secret experiments, the purpose was to make the humans in the underground world not afraid of the zombie virus, so he used the people of the underground world to do experiments, and the energy of the beast race is the key.

The current situation of the Martial Academy can't last long, the dean's current energy can only deal with one of the four people who are guarding, as for the others, the dean actually didn't think about taking them away, and if they can leave, they can rely on their own ability, and the current situation no longer allows them to be good people. In fact, they are not good people in the first place.

"Go to the storeroom and find some planks, tie them together, doesn't the book say that there is such a thing as a 'boat', let's make one as such."

The people of the Martial Academy are now at a critical juncture, they don't know what effect the blood pool outside will have on them, but they know that they will definitely drown if they don't have water, and they can only draw a scoop according to the gourd in a hurry, and they have to take advantage of the chance to live.

The force of the object immersed in the liquid is buoyant, and the people of the martial arts academy want to build a boat, which is nothing more than knowing the principle of buoyancy.

In the last days, although the technology of the earth world is the most developed, but the underground world has been sealed underground since thousands of years ago, they don't know such a thing as technology, they don't know the relevant principles and concepts, they just get what they want from the accumulated experience, and even the wooden boat to be made now is not something they understand, just know that this thing can save lives.

Under the current situation, there are only a few dozen people left in the martial arts academy with slightly higher energy, they are usually very majestic in the underground world, but in this kind of scene in front of them, they are like a group of cowards, no one has an idea, and they have to rely on other people's arrangements to act.

The cause of buoyancy can be analyzed by an object submerged in a regular cube in a liquid. The object of total immersion is subjected to the pressure of liquids in all directions, and it increases with depth. So the six sides of this cube are subjected to the pressure of the liquid. Because the force acting on the left and right sides is equal in size and at the same depth in the liquid, the pressure on the two sides is equal and the direction is opposite, and the two forces balance each other. In the same way, the pressure acting on the front and rear sides is also balanced against each other. However, because the depth of the upper and lower faces in the liquid is not the same, the pressure is not equal. The pressure above is small, the pressure below is strong, and the upward pressure below is greater than the downward pressure on the top. The pressure difference between the liquid and the object is the buoyancy of the liquid against the object. This force is equal to the gravitational force of the liquid that is dislodged by the object.

After all, the people of the Martial Academy are cultivators, their abilities are strange, such a thing as making a wooden boat, they follow the methods and graphics recorded in the book, and use a small part of each person's energy to combine a small part, and then soon, a wooden boat is ready, and at this time, the protective layer is about to reach its limit.

Because the wooden boat is very small, it can only accommodate one person, and there are still dozens of disciples left in the martial arts academy, when the wooden boat was made just now, the dean led by him had already thought of this problem, but the protective layer was about to break, and he didn't have time to command everyone to make so many wooden boats, he was selfish, the dean didn't care about anyone except his own life, and now the dean had the strongest energy among everyone, and no one could throw him off the boat.

When the dean himself sat down and put it on, no one else knew what to do, although no one moved, but everyone knew what was going on in their hearts, the strong survived, and only those who lived to the end were qualified to sit on the boat, and a war would soon break out.

Just when everyone was about to attack each other, a person delicately walked onto the boat from the crowd and sat down peacefully, this person was known to the dean, it was Fan Bin who was used to lure Lin Feng to appear.

But everyone didn't know that Fan Bin had actually been pushed down the pit by Lin Feng, and had already crossed the spatial boundary to the level of zombies, and now Fan Bin, everyone thought that he was still an ordinary disciple.

"You deserve to be on this boat, too?"

The dean was very dissatisfied with Fan Bin's ignorant attitude, and just took this opportunity to kill him to prevent the experiment from being revealed, but Fan Bin just glanced at him, and then there was nothing. (To be continued.) )