Tuesday, March 21, 2023

The planet earth just started spinning faster than ever

Immigration News

Mehr Ali Altaf
Mehr Ali Altafhttps://www.khaama.com
Mehr Ali is a young bilingual journalist from Afghanistan working for the English language version of Khaama Press online. His main responsibility include researching and writing news reports for the sports, tech and entertainment sections.

Earth is actually spinning faster than it used to and recently recorded a time that was the fastest scientists had ever seen. 

On 29 June 2022, Earth completed one spin in 1.59 milliseconds less than its usual 24-hour rotation, in turn setting the record for the shortest day – and the latest in a series of speed records for our planet since 2020. 

And it came pretty close again more recently, having completed the spin in 1.5 milliseconds shorter than 24 hours. 

Scientists began taking accurate daily measurements of the Earth’s rotation in the 1960s, using atomic clocks. These work by using resonance frequencies of atoms to monitor time with extreme precision. 

Since then, experts have found that – while there are fluctuations – Earth has been speeding up in recent years, with 2020 seeing 28 shortest days since the 1960s. 

The shortest day that year was 19 July, when the Earth span 1.47 milliseconds less than 24 hours. 

According to Time and Date, the current downward trend in the length of the shortest day could be linked to Earth’s ‘inner or outer layers, oceans, tides, or even climate’, but scientists remain unsure. 

At the forthcoming annual meeting of the Asia Oceania Geosciences Society, which takes place next week, Leonid Zotov and colleagues Christian Bizouard and Nikolay Sidorenkov will argue that the decrease may be related to the ‘Chandler wobble’, the term given to a small and irregular movement of the geographical poles across the surface of the globe. 

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