Chapter 544
The three moons in the sky have begun to gather, and the three of them are about to join in a straight line, and at that time, there will be a great tide in the sea of death in the last days, enough to drown the tide of the dead world. Pen % fun % Pavilion www.biquge.info
When the three moons are connected in a straight line, the gravitational effect of the moon on the end times is larger, which also makes the sea of death in the end times fluctuate, forming a tide that is enough to drown the world of death.
There is a periodic fluctuation phenomenon in seawater: at a certain time, the seawater pushes the waves, rises rapidly, and reaches a climax; After some time, the rising waters receded on their own, leaving a sandy beach with low tides. And so on and so forth, and never stops. This phenomenon of movement of the sea is called the tides. "Tide" refers to the rise of the sea during the day, and "tide" refers to the rise of the sea at night, although we tend to refer to both tide and tide as "tide".
The tides are mainly determined by the gravitational forces of the Moon and the Sun. Although the Moon is less massive than the Sun, its gravitational force is about 2.17 times higher than that of the Sun. Whenever the Moon moves in a straight line with the Sun, the gravitational force of the two bodies will act in the same direction, and the rise and fall of the sea will inevitably increase. This is the reason why people often say that "the tide rises on the first and fifteenth days of the new year". Astronomical tides are normal astronomical tidal phenomena with a period of 18.6 years, which can be predicted several years in advance. Astronomical tides do not cause disasters under normal circumstances, but will constitute water disasters in some specific environments, such as floods that are difficult to retreat when rivers are full during the flood season. If the astronomical tide encounters a typhoon, storm surge will occur before and after landfall; If the water level of the river is low, the upstream range of the tide is expanded, and the degree of salinity is aggravated, the salty tide will be formed.
The periodic changes of various elements of the atmosphere due to the action of gravitational tidal force are called atmospheric tides, referred to as air tides. Among them, the atmospheric tide caused by the sun is called solar tide, and the solar tide caused by the moon is called the solar tide. Because the Moon is closer to the Earth than the Sun, the ratio of the gravitational force of the Moon to the Sun is 11:5, and for the ocean, the solar tide is more significant than the solar tide. The driving force of earth tides, ocean tides and air tides is caused by the different gravitational forces of the sun and the moon on various parts of the earth, and the three affect each other.
The elastic-plastic tidal deformation of the crust at the bottom of the ocean will cause the corresponding ocean tides, that is, there is a geotidal effect on the ocean tides. The migration of seawater mass caused by ocean tides changes the load on the earth's crust and causes the earth's crust to undergo reversible distortions. The air tide is above the ocean tide, and it acts on the sea surface to cause its additional vibrations, which further complicates the change of the ocean tide. As a complete tidal science, the research object should take the ground tide, ocean tide and air tide as a unified whole, but because the phenomenon of ocean tide is very obvious and closely related to people's life, economic activities, transportation, etc., it is customary to understand the term tide as marine tide in a narrow sense.
Tides are mainly determined by the gravitational force of the Moon and the Sun, especially the gravitational force of the Moon within it. Although the Moon is less massive than the Sun, its gravitational force is about 2.17 times higher than that of the Sun. As the relative positions of the Earth, the Moon, and the Sun change periodically, so does the action of this force. Whenever the Moon moves in a straight line with the Sun, the gravitational force of the two bodies will act in the same direction, and the rise and fall of the sea will inevitably increase. As a result, this periodic tidal phenomenon appears in front of people, which is the reason why people often say "the first and fifteenth high tides of the first and fifteenth days of the new year".
Although the gravitational pull of the sun on seawater is relatively small because it is far away from the earth, and seawater is mainly affected by the gravitational pull of the moon, the gravitational pull of the sun can still strengthen or weaken the gravitational effect of the moon on the earth. Wang Hongxin, director of the Provincial Marine Monitoring and Forecasting Center, said that when the Sun, the Earth and the Moon are in the same direction (around the first and fifteenth day of the lunar month), the Sun's gravitational pull will play a role in fueling the waves, making the climax higher; And when the Sun, Earth, and Moon are at right angles, the Moon's gravitational pull is weakened, forming a "small tide".
Astronomical tides do not cause disasters under normal circumstances, but will constitute water disasters in some specific environments, such as floods that are difficult to retreat when rivers are full during the flood season. If the astronomical tide encounters a typhoon, storm surge will occur before and after landfall; If the water level of the river is low, the upstream range of the tide is expanded, and the degree of salinity is aggravated, the salty tide will be formed. Storm surge occurs around the time of a typhoon when an astronomical high tide occurs, and a storm surge is a marine hazard that occurs near shore. It is a phenomenon caused by the action of strong weather systems such as strong winds or sudden changes in air pressure on the sea surface, which causes the water level to rise and fall sharply, and often causes harm to the coastal areas. Storm surge disasters are the largest marine hazards, and the vast majority of the world's megacoastal disasters caused by severe storms are caused by storm surges.
The tide of the sea of death in the last days has been known as the wonder of the world since ancient times. Whenever the tide comes, the huge waves are surging and surging, the momentum is majestic, the tide is shaking the heavens and the earth, such as thousands of troops and horses, the river is tumbling, there is really the tendency of "turning over the river and pouring the sea and mountains for destruction". The head of the tide is generally 1 to 2 meters high, and the highest is more than 5 meters, and it is moving upstream at a speed of 5 to 7 meters per second.
But the disadvantages brought by this tide are really not good to evaluate, on the one hand, he can bring new energy to the people of the end times, on the other hand, he flooded the world of death, causing the disappearance and damage of many villagers and villages, and since the end of the world, there are many monsters in the sea of death, these mutant monsters will come to the world of death with the tide, and innocent villagers will become food for these mutant monsters.
In order to prevent the tide from attacking the villagers, the Death World established a large base as a line of defense to protect the tide, and now Lin Feng and Lin Xiaobao are in this base.
As night wore on, more and more people from the base appeared on the streets, hurrying as if they were coming from outside the base.
From the nervousness of these people, we can know that the tide is coming, the moonlight in the sky has become dim, it seems that because the three moons are connected into a straight line, the moonlight has also decreased a lot, in the dim night, this tense atmosphere makes Lin Feng a little worried.
When the outside of the house comes out, 'Boom! After a loud bang, the people in the base looked at the gate of the base nervously, Lin Feng and a few of them also came out to take a look at the situation, the gate of the base has been closed, and the tide of the end of the world has begun.
The sound of thousands of horses galloping could be heard outside the base, and there was a strong smell of water vapor and death in the air.
"The sea of death is overflowing, let's get inside quickly."
Lin Feng smelled the danger in the air and asked Dong Wu and Lin Xiaobao to go into the house to hide. (To be continued.) )