Lead
The Moon is the only satellite on Earth, and it has a delicate but non-negligible relationship with the Earth, and it also has a significant impact on the Earth's ecosystem.
But according to astronomers' observations of the moon, it is found that the moon is moving away from our earth at a rate of 3.8 centimeters per year, so if the moon really "runs away from home", what will be the impact on the earth?
1. The Moon leaves the Earth.
The moon has a great impact on life on Earth, otherwise human beings would have landed on the moon and developed the moon a long time ago.
The Moon has many positive effects on the Earth, the most significant of which is the tidal effect, without which the Earth's waters would not be tidal.
The most direct impact is that without the impact of tides on the living environment of marine organisms, the life on Earth may be very different from the current life.
At the same time, there is also a more hidden effect, that is, the existence of the moon, which will have an impact on the rotation speed of the earth.
That's right, it's the tidal locking effect of the Moon that makes the Earth's rotation so slow, and there is even a theory that if the Moon hadn't existed, the Earth would have rotated twice as fast as it does now!
And there is also an advantage, that is, the moon, as the "guardian" of the earth, can effectively slow down the harm of meteor showers and asteroids to the biosphere on the earth, and it can be said that the moon plays a pivotal role in the earth's ecosystem.
But many people may know about the distance between the Moon and the Earth, so what does it mean for the Moon to leave the Earth 3.8 centimeters per year?
How long will it take for the Moon to leave the Earth before there will be a catastrophe?
The gravitational pull between the Moon and the Earth is very weak, and even the gravitational pull between the Moon and the Earth will allow a million-ton ocean ship to sail freely in the sea, which shows that the gravitational pull between the Moon and the Earth is very weak.
The distance between the Moon and the Earth is about 384,000 kilometers, and it is increasing at a rate of 3.8 centimeters per year, so when the Moon leaves the Earth, how long will it take us?
After a simple calculation, it will be about 1 billion years before the Moon will leave the gravitational range of the Earth.
But when the moon leaves the earth, not only will humans not be able to see the moon in the night sky, but it will also have a huge impact on the earth.
2. The significant impact that the Moon may have from leaving the Earth.
1. The time of day will become shorter.
Every year, the Earth's rotation slows down slightly due to natural disasters such as earthquakes and floods.
The Moon will also be dragged closer to the Earth due to the gravitational pull of the Earth, which will cause the Earth's rotation speed to slow down, and the Earth's rotation speed will slow down every year because of these small effects.
But the Moon leaves the Earth by 3.8 centimeters per year, and the decrease in the Earth's rotation speed can be said to be very small, and its slowdown can only be felt when you concentrate it, so don't worry, the day on Earth will not become very short because of the Moon's departure.
2. Sea level rise.
Once the moon disappears, then the sea level on the earth will rise greatly, not only the sea level will rise to twice as much, but the tides on the earth will become more complicated, which may cause some seahorses, conch and other marine animals to be unable to adapt to the new environment, and a large number of marine life will become extinct.
3. Changes in the Earth's axis of rotation.
The existence of the moon will also have an impact on the axis of rotation of the earth, if there is no moon, then the axis of rotation of the earth will no longer be as stable as it is now, it will shake, and even the phenomenon of tilting of the axis of rotation is not ruled out.
But over time, the Earth's rotation will gradually slow down, and in the future, the Earth's rotation speed will be the same as that of the Moon, and the tilt of the axis of rotation will gradually disappear.
But if the Moon leaves the Earth before that, the Earth's rotation will be faster, and the stability of the axis of rotation will not be guaranteed.
4. The collapse of the biosphere.
The existence of the moon makes the biosphere on the earth more stable than that of the earth, and if there is no moon, then the biosphere on the earth will become very unstable, and it is easy to be affected by some small factors, resulting in the collapse of the biosphere.
3. When the moon leaves the earth, what kind of disasters will happen to the earth?
1. Geological disasters.
The Earth's tectonic plates are constantly moving, which means that earthquakes and volcanoes on Earth will never stop.
But with the Moon, it has an effect on the movement of tectonic plates on Earth, and once the Moon leaves the Earth, then the tectonic plates on Earth become more active, and earthquakes and volcanoes become more frequent.
2. Natural disasters occur frequently.
The weather on Earth is regulated by the Earth's revolution and rotation, but without the presence of the Moon, then the climate on Earth would become abnormal, which will not only lead to the extinction of some species, but also threaten the survival of humans.
3. 海啸.
Without the existence of the Moon, tsunamis on Earth will become more frequent, and the scale of tsunamis will become larger, and even after the tsunami, the marine life on Earth will not be able to quickly adapt to the new environment due to the lack of the Moon's gravity, and it will also lead to the rapid extinction of some marine life.
epilogue
But the gravitational pull between the Moon and the Earth is the Moon that is firmly locked by the Earth's gravity, so in the short term, we don't have to worry about the Moon leaving the Earth.
The departure of the Moon from the Earth will not only have an impact on the Earth's ecosystem, but will also pose a challenge to interstellar travel, because the Moon is also providing a certain guarantee for the Earth.
The departure of the moon will also expose the earth to more threats from outer space, because without the moon to "block the knife", the earth will become a victim of the threat of outer space.
At the same time, it will also make the environment on Earth more unstable, so we should strengthen the study and monitoring of the Moon to better understand its movement and possible effects.