Last June 29 It was the shortest day Land since 1960, when scientists began to measure the rotation of the planet thanks to atomic clocks.
According to the researchers, this day was 1.59 milliseconds shorter than the 86,400 seconds of the day.
Why was the shortest day on Earth?
According to science Land it “wobbles” around its axis (not being perfectly spherical), and the trend ensures that its rate of rotation increases.
This behavior is due to the fact that the planet has a bulge at the equator, and the poles are slightly flattened, which means that Land it is slightly elliptical.
Other factors can also influence the rotation, including ocean tides and the moon’s gravity.
Chandler wobble?
Leonid Zotov, professor of mathematics, believes that Land can spin faster due to periodic motion called “Chandler wobble,” he says. Insider.
The wobble was first detected in the late 1880s when astronomer Seth Carlo Chandler noticed that the poles were moving over a period of 14 months. This fluctuation began to decrease in the early 2000s, hitting an all-time low since 2017. Telegraph.
And between 2017 and 2020, “disappeared,” Zotov said. timeanddate.com. He will now present this theory to the Asia-Ocean Society for Geosciences.
We recommend you METADATA, an RPP tech podcast. News, analytics, reviews, recommendations and everything you need to know about the world of technology. To hear better, #StayHome.
Source: RPP
I’m Liza Grey, an experienced news writer and author at the Buna Times. I specialize in writing about economic issues, with a focus on uncovering stories that have a positive impact on society. With over seven years of experience in the news industry, I am highly knowledgeable about current events and the ways in which they affect our daily lives.