Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ The earth has been spinning the fastest for decades; this is how scientists deal with the problem

The earth has been spinning the fastest for decades; this is how scientists deal with the problem



According to scientists, the Earth must have been over 2020, because last year the planet rotated faster than for decades, according to USA Today.

Graham Jones and Constantine Bikos co-authored with TimeandDate.com that the Earth is usually an efficient stopwatch and that “it rotates once every 86,400 seconds, which is equal to 24 hours or an average sunny day.” However, this changed slightly last year. Although the co-authors acknowledged that 24-hour rotation of the Earth is not always perfect.

“When extremely accurate atomic clocks were developed in the 1

960s, they showed that the length of the average solar day could vary by milliseconds (1 millisecond equals 0.001 seconds),” Jones and Bikos wrote. “These differences are obtained by measuring the Earth’s rotation with respect to distant astronomical objects and by using a mathematical formula to calculate the average solar day.”

The 28 fastest days on Earth since 1960 happened in 2020. While last year felt endless for so many since the world was blocked last March due to the coronavirus pandemic, 2020 actually had the shortest registered days, according to TimeandDate .com.

Before this year began, the shortest day since 1973 was July 5, 2005, when the Earth’s rotation took 1.0516 milliseconds in less than 86,400 seconds.

But in mid-2020, the Earth broke this record at least 28 times. The shortest day of all came on July 19, when the Earth completed its rotation in 1.4602 milliseconds in less than 86,400 seconds.

The Earth’s rotation can change depending on the movement of the planet’s core, as well as changing patterns of weather / atmosphere, oceans and other effects, reports TimeandDate.com.

In addition, the report states that if the Earth becomes too unstable with atomic clocks, a “positive or negative jump second” can be used to bring them back into line. The jumping seconds were established in 1972, and the rotation of the Earth is sometimes slow. There were 27 leap seconds between then and 2016, all positives that added an extra second to our watches and allowed Earth to catch up.

Now the Earth is moving faster and scientists say that if this continues, negative leap seconds may be needed and our clocks will miss a second to keep up with the planet.

Peter Weberley, a physicist at the National Physics Laboratory in the United Kingdom, developed this feeling through The Telegraph.

“It is quite possible that a negative leap second will be needed if the Earth’s speed increases further, but it is too early to say whether this is likely to happen,” Weberley told The Telegraph. “There are also international discussions about the future of leap seconds, and it is also possible that the need for a negative leap second will push the decision to end the leap seconds forever.”


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