: Why are Earth’s days getting longer? Scientists are still looking for the answer #IndiaNEWS Atomic clocks, combined with precise astronomical measurements, have revealed that the length of a day

Why are Earth’s days getting longer? Scientists are still looking for the answer #IndiaNEWS
Atomic clocks, combined with precise astronomical measurements, have revealed that the length of a day is suddenly getting longer, and scientists don’t know why.This has critical impacts not just on our timekeeping, but also things like GPS and other technologies that govern our modern life.Over the past few decades, Earth’s rotation around its axis – which determines how long a day is – has been speeding up. This trend has been making our days shorter; in fact, in June we set a record for the shortest day over the past half a century or so.But despite this record, since 2020 that steady speedup has curiously switched to a slowdown – days are getting longer again, and the reason is so far a mystery.While the clocks in our phones indicate there are exactly 24 hours in a day, the actual time it takes for Earth to complete a single rotation varies ever so slightly. These changes occur over periods of millions of years to almost instantly – even earthquakes and storm events can play a role.It turns out a day is very rarely exactly the magic number of 86,400 seconds.The ever-changing planetOver millions of years, Earth’s rotation has been slowing down due to friction effects associated with the tides driven...Read more

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