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Planet Earth broke its speed record again

BingMag.com <b>Planet</b> <b>Earth</b> <b>broke</b> its <b>speed</b> <b>record</b> again

In the past few days, with a new record for the rotation speed of the Earth, the length of the day and night of the open Earth became shorter than 24 hours.

June 29 2022 (August 7, 1401), a strange phenomenon occurred for the rotation speed of the Planet Earth. However, it's probably had such a small impact on your life that you haven't even noticed.

Believe it or not, you've actually spent 1.59 milliseconds more time than you'd expect in a real day or night. Use this time wisely!

This record is the shortest day length since scientists started using atomic clocks to measure the speed of the Earth's rotation.

But this extra time How is it created? According to TimeEndite, as measured by the International Earth Rotation and Reference Systems Service (IERS), on this day our Planet set a new record for the fastest time to complete one revolution. On August 7, it was 1.59 milliseconds less than 24 hours.

But isn't the Earth's day exactly 24 hours? Actually no! The first thing to keep in mind is that there are actually several types of diurnal depending on your definition.

The first diurnal is a solar day, with a 24-hour period during which the Earth rotates until the sun again. appear in the same place in the sky.

However, another definition of a day, which is defined as 23 hours 56 minutes and 4.091 seconds, is the time it takes for the Earth to rotate on its axis. to distant stars, make a full rotation.

Scientists have found that the rotation of the Earth is accelerating. but why? And what consequences can this issue have?

Many factors can affect the length of the day, including the tidal forces between the Earth and the Moon that make the day longer. Every 100 years or so, one rotation of the Earth takes a few milliseconds longer. In addition, the movement of internal materials of the Planet and the atmosphere and the movement of satellites also change the length of the day. Earth has broken many speed records since 2020. In fact, 2020 has had 28 of its shortest days on record since the 1960s.

No one knows for sure why this happens, but one suggestion is related to changes in the axis. It's a cycle that's never been as shaken as it has been in the last five years.

BingMag.com <b>Planet</b> <b>Earth</b> <b>broke</b> its <b>speed</b> <b>record</b> again

Credit: Coffeekai/iStock

Understanding the planet's complex motions, especially if they involve long-term cycles, can take some time, but fortunately, most of the effects of these changes are minor. If the difference is too big or too small after months or even years, a leap second may be added to the official time and date. It is placed like Facebook, Google, Amazon and Microsoft because considering an extra second can sometimes cause software malfunction.

The last leap second was added on December 31, 2016, but currently there is no An extra second is not expected to be added in 2022.

  • Earth is just spinning faster

Cover photo: A graphic design of Planet Earth
Credit: Iryna Store/Shutterstock

Sources: Interesting Engineering, IFL Science


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