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Earth's rotation speed believed to be speeding up | Top Stories


As Earth’s rotation speed slowed ever-so-slightly in recent decades, leap seconds were added intermittently to keep clocks up to date.
But if a new trend holds, time might need to be turned in the other direction some day soon.
Earlier this month, The Daily Telegraph reported that Earth has reached its quickest spin speeds in the past half-century.
“It’s quite possible that a negative leap second will be needed if Earth’s rotation rate increases further,” said Peter Whibberley, a senior research scientist with Britain’s National Physical Laboratory, according to The Daily Telegraph.
The speed of Earth’s spin fluctuates constantly due to a range of factors, including the motion of the planet’s core and oceans, according to the British newspaper. ....

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Despite how it may have felt, 2020 was shorter than previous years - Earth is spinning quicker than it has in decades


Despite how it may have felt, 2020 was shorter than previous years - Earth is spinning quicker than it has in decades
insider@insider.com (Susie Neilson)
© REUTERS/NASA/Handout via Reuters/File Photo
A photo of Earth taken by NASA s Earth Polychromatic Imaging Camera (EPIC). REUTERS/NASA/Handout via Reuters/File Photo
Earth s 28 fastest days ever recorded happened in 2020.
On average, the planet rotated more quickly around its axis last year than it did in previous years. 
Scientists who measure the speed of Earth s rotation think 2021 may be even faster than 2020. If so, they may need to subtract a second from the year.   ....

United Kingdom , Peter Whibberley , Reference Systems Service , International Earth Rotation , United Kingdom National Physics Laboratory , Polychromatic Imaging Camera , File Photo , National Physics Laboratory , Universal Time , Atomic Time , ஒன்றுபட்டது கிஂக்டம் , குறிப்பு அமைப்புகள் சேவை , சர்வதேச பூமி சுழற்சி , ஒன்றுபட்டது கிஂக்டம் தேசிய இயற்பியல் ஆய்வகம் , கோப்பு புகைப்படம் , தேசிய இயற்பியல் ஆய்வகம் , உலகளாவிய நேரம் , அணு நேரம் ,