The Earth will spin slightly faster than usual on Tuesday, August 5, shortening the usual 24-hour period by 1.25 to 1.51 milliseconds, scientists said. The information was released by the International Earth Rotation Organization, the Reference System Service, and the US Naval Observatory, according to TimeandDate .
Considering that it takes the Earth 86,400 seconds to complete one rotation, this change is so small that, so far, it will not have a major impact on people's daily lives.
What also surprised many people was that today was also the third shortest day of the summer, following July 9 and 22.
We are living in a shorter day than usual.
Experts believe the position of the moon is responsible for the shorter summer days, but they are not sure. The cause of this acceleration is still unknown. Ocean and atmospheric models cannot account for this huge acceleration, according to Leonic Zotov, an expert on Earth's rotation at Moscow State University.
This trend of shorter days has been going on since 2020. July 2020 had a day that was 1.47 milliseconds shorter, and two years later, in June 2022, there will be a day that is 1.59 milliseconds shorter.
Of course, you don't realize you're living in a day that's shorter than 24 hours. While you may not notice it, scientists warn that shorter days can have long-term negative effects.
As the Earth's rotation increases, the divergent force could cause ocean water to move toward the equator - potentially raising sea levels enough to flood low-lying areas.
If the Earth's rapid rotation continues, experts fear a 24-hour day could become two hours shorter.
As a result, human biological clocks would be disrupted and a 22-hour day would also likely cause dangerous weather patterns, such as faster and more catastrophic storms, explains NASA astronomer Dr Sten Odenwald.
“This is an unprecedented situation and a big deal,” added Duncan Agnew, a geophysicist at the Scripps Institution of Oceanography at the University of California.
Source: https://thanhnien.vn/vi-sao-hom-nay-5-thang-8-la-mot-trong-nhung-ngay-ngan-nhat-lich-su-185250805102007175.htm
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