Name: Scientists say Earth is spinning faster than it has in decades
Uploaded: 2021-01-12T19:30:43+00:00
Duration: 1 min 8 s
Description: The Earth is moving faster than it ever has in the last 50 years, scientists have discovered, and could result in a ‘negative leap second’ being added to the year. The speed of the Earth’s rotation is

3 years ago

251

The Earth is moving faster than it ever has in the last 50 years, scientists have discovered, and could result in a ‘negative leap second’ being added to the year.

The speed of the Earth’s rotation is affected by a number of factors, including the motion of its molten core, oceans, and atmosphere.

As such the average day in 2021 is expected to be 0.05ms (milliseconds) shorter than the 86,400 seconds that usually make up a 24-hour period, according to Graham Jones, Astrophysicist & Science Communicator, and Konstantin Bikos from Time and Date.

Scientists at the International Earth Rotation and Reference Systems Service (IERS) can calculate when this event occurs by measuring the precise moment a star passes a certain location in the sky each day.

The Earth's rotation can change slightly because of the movement of its core and also, surprisingly, because of weather and ocean patterns.

Planetary scientists are not concerned about the new finding; they have learned that there are many factors that have an impact on planetary spin—including the moon's pull, snowfall levels and mountain erosion.

Source: https://phys.org/news/2021-01-earth-faster.html

Source: https://www.independent.co.uk/life-style/gadgets-and-tech/earth-spinning-2021-shorter-scientists-b1784561.html

Source: https://www.usatoday.com/story/news/nation/2021/01/08/earth-spinning-faster-than-has-decades/6581600002/

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