FP TrendingJan 07, 2021 11:48:51 IST
Scientists have now revealed that the Earth is turning faster than normal and as a result, the length of each day has become a little shorter than 24 hours. Timekeepers around the world are reportedly debating whether they should periodically delete a tick to report the change and restore accuracy to the timeline of rotation. of the Earth. According to the report, the ‘second negative jump’ has never been added before.
However, a total of 27 seconds jump has been added since the 1970s to maintain atomic time according to the time of the sun. The seconds have been added because, for years now, the Earth has taken just over 25 hours to complete orbit. However, since last year, the planet has been emitting slightly less fire.
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Timekeepers have discovered that, for the past 50 years, the Earth has taken a fraction of less than 24 hours to complete orbit on its own axis. However, in mid-2020, the trend reversed abruptly and days began to shorten more steadily. For example, July 19, 2020 fell 1.4602 millisecond short on 24 hours. This record has since been broken 28 times in the past year alone, according to the report, and days now pass 0.5 seconds short of 24 hours. To keep up, timekeepers at the Paris – based IERS have added leaps and bounds to 27 days since 1970.
A 2015 study was published in Advances in science has said that global warming could be the reason behind the phenomenon. As glaciers melt, massive redistribution causes the planet to move and spin faster on its axis.
“It is very possible that a negative jump will be required either if the Earth’s rotation rate rises further, but it is too early to say whether this is likely to happen,” said physicist Peter Whibberley from the national physics laboratory. , RA, told The Telegraph. “International discussions are also ongoing about the fate of a leap second, and it is also possible that the need for a negative jump could either be the decision towards ending jump seconds for good. “