Everything in the world has a balance of yin and yang, and so does the alternation of day and night.
Of course, this is the concept of people in the past. Today in the 21st century, from a professional perspective, the staggered day and night is actually caused by the rotation of the earth, that is, 12 hours of daytime and 12 hours of night.
But have you ever thought about it? Judging from the current rotation speed, it is 24 hours. What if the rotation speed speeds up?
Many times I am not willing to discuss these issues because they are mixed with too many influencing factors. Just take what people see, can you ensure that what you see is the current state?
The answer is no, because people will always live in " past tense ".
The speed of light is 300 million meters/second, which proves that it takes time for people to see things, and it also takes time for them to be transmitted to people's eyes. No matter how small this value is, cannot be ignored from a scientific perspective. .
The same is true for the earth's rotation. The most intuitive distinction is between day and night.
If there were no day and night, creatures in the three-dimensional world would not know what time is at all. They would have no concept, and it would have no meaning to us.
Today's earth suddenly "accelerates" its rotation speed, means that there are less than 24 hours in a day , what will be the consequences?
rotation
First, let’s talk about the earth’s rotation , described in one sentence: is affected by gravity, and celestial bodies need to maintain a state of motion .
From the perspective of geography and physics, the principle of conservation of momentum cannot be destroyed. Planets and celestial bodies must rotate around "an axis", but what does this "axis" specifically refer to? It is what people often call and .
Strictly speaking, this thing does not exist. In fact, it is something that people imagine out of thin air.
You have all seen a globe in your life. The tilted line is the so-called "earth axis".
Since it is a sphere, when the sun illuminates one side, the other side will fall into darkness. Is this time exactly the same? The answer must be no.
People often notice in life: Sometimes it gets dark at six o'clock, and sometimes it doesn't get dark until eight o'clock, so the time of light is always changing. .
If time is divided into day and night, this is obviously not true.
Many people do not have this concept in their minds. Take ancient times, for example. People at that time regarded sunrise and sunset as the end of the day. Didn't they find that the length of time was different?
It’s just that technological productivity is not developed, and people have no way of knowing this thing.
Today in the twenty-first century, we have discovered the phenomenon of the earth's rotation, and thus created the concept of 24 hours a day based on it.
From a professional point of view, a day is not exactly 24 hours, is 23 hours, 56 minutes, 4 seconds .
Some people think, do these few minutes still need to be counted? The impact on people's lives does not seem to be large, but if it is really due to some special factors and needs to be precise, should this value be used as the criterion?
What's more, the scientific community has always been known for its "excellence", and every scientist hopes to perform the pinnacle of work in this field.
When there is demand, there is creation. Something called " atomic clock " was born. After verification by relevant experiments and many practical measurements, the atomic clock has also been given a new name: the world's most accurate clock.
After long-term use records, scientists have discovered a strange phenomenon: the earth's rotation speed is accelerating , and it is even less than the 24 hours in ordinary people's concept. The impact of
on
When someone first raised this issue, it didn't get people's attention.
" is just a celestial body, what does it have to do with me whether it is fast or not?" On the surface, it doesn't seem to have much impact, but we are on the earth of all mankind. Even if I don’t feel anything now, what if this speed continues to accelerate?
Those fields that require higher scientific research accuracy will inevitably be greatly affected, such as aerospace, satellites, etc.
Going further, as the speed increases, the length of day and night will also change. People now use day and night as the concept of a day. Will it be possible to have "two white and one black" or "two black and one white" as one day? ?
At the same time, as is faster, the corresponding centrifugal force will be greater. Wouldn't the gravity become smaller than ? That means something is light.
Things that could not be moved before can now be moved without any effort. Has everyone on the earth become a "Hercules"?
If we really want to continue to accelerate changes according to a trend, there will be only one final result: things will become lighter and lighter, and everything will even become " floats " becomes .
Many people think that this is " weightless "?
The answer is exactly the same. Just like the astronauts in space, they live in a local environment and their safety is guaranteed to the greatest extent, but the earth is very different.
If a strong wind blows one day, you may be blown away or even floated out of the earth .
Human breathing requires oxygen . If you want to continue to survive in this vacuum environment, the probability is almost "0". When that day comes, it will be a disaster for all mankind.
laughs about the world
Of course, everything is just a hypothesis, but the earth's rotation speed is constantly accelerating.
According to current research by scientists, a large factor causing this phenomenon is caused by rising global temperatures. Melting of glaciers will inevitably cause sea levels to rise . After the materials are evenly distributed, there will be only one result: the speed of the earth's rotation will change .
At the end of the article, I would like to give you a sentence: maintaining the ecological balance of the earth is to protect human beings themselves .
Global climate change and greenhouse effect are obvious and seriously threaten human survival. How to save our home planet is the unshirkable responsibility and mission of each of us. Start from the little things around you and contribute to the healthy development of the earth.
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