2021 will be shorter because Earth is spinning faster, scientists say

[PaklovesTurkiye]

Photo by: NASA
NASA camera on Deep Space Climate Observatory satellite returns photo of entire sunlit side of Earth from 1 million miles away

By: Scripps National
Posted at 2:48 PM, Jan 12, 2021

and last updated 2:48 AM, Jan 13, 2021


Humans were not the only ones who wanted 2020 to be over faster. The Earth spun faster than normal last year, according to scientists.

Last year, the Earth broke the previous record for shortest astronomical day, set in 2005. In fact, the Earth broke the record 28 times in 2020. And it's still spinning faster.

While Earth is, on average, pretty reliable and takes 86,400 seconds to rotate around its axis, it’s not perfect.

"When highly accurate atomic clocks were developed in the 1960s, they showed that the length of a mean solar day can vary by milliseconds (1 millisecond equals 0.001 seconds),” write Graham Jones and Konstantin Bikos on TimeandDate.com.

How fast or slow the Earth spins can be impacted by various factors.

"Changes in the atmosphere, specifically atmospheric pressure around the world, and the motions of the winds that may be related to such climate signals as El Niño are strong enough that their effect is observed in the Earth’s rotation signal," David A. Salstein, an atmospheric scientist from Atmospheric and Environmental Research, said in 2003.

These variations can add up. LiveScience reports the Earth has actually been slowing down for the last several decades. When the time it takes earth to make a full rotation deviates from the Coordinated Universal Time (UTC) by more than .4 seconds, the UTC is adjusted.

Scientists have been adding a “leap second” every year-and-a-half on average. The last one was added on December 31, 2016.

Since the Earth has sped up, scientists believe each astronomical day in 2021 will be 0.05 milliseconds shorter, and over the course of the year, it adds up to a 19 millisecond difference.

"It's quite possible that a negative leap second will be needed if the Earth's rotation rate increases further, but it's too early to say if this is likely to happen," physicist Peter Whibberley of the National Physics Laboratory in the U.K., told The Telegraph. "There are also international discussions taking place about the future of leap seconds, and it's also possible that the need for a negative leap second might push the decision towards ending leap seconds for good."

The average person may not notice a leap second being taken away or the ones that have been added, but they will impact things like navigation, spaceflight, computer networks and astronomers.

The last time every day of a calendar year was shorter than 86,400 seconds was in 1937, according to TimeandDate.com.

https://www.thedenverchannel.com/ne...cause-earth-is-spinning-faster-scientists-say

Chakar arahe hain??

@Zibago @Areesh @dexter @fitpOsitive

 

[Goritoes]

 

[TheSnakeEatingMarkhur]

Photo by: NASA
NASA camera on Deep Space Climate Observatory satellite returns photo of entire sunlit side of Earth from 1 million miles away

By: Scripps National
Posted at 2:48 PM, Jan 12, 2021

and last updated 2:48 AM, Jan 13, 2021


Humans were not the only ones who wanted 2020 to be over faster. The Earth spun faster than normal last year, according to scientists.

Last year, the Earth broke the previous record for shortest astronomical day, set in 2005. In fact, the Earth broke the record 28 times in 2020. And it's still spinning faster.

While Earth is, on average, pretty reliable and takes 86,400 seconds to rotate around its axis, it’s not perfect.

"When highly accurate atomic clocks were developed in the 1960s, they showed that the length of a mean solar day can vary by milliseconds (1 millisecond equals 0.001 seconds),” write Graham Jones and Konstantin Bikos on TimeandDate.com.

How fast or slow the Earth spins can be impacted by various factors.

"Changes in the atmosphere, specifically atmospheric pressure around the world, and the motions of the winds that may be related to such climate signals as El Niño are strong enough that their effect is observed in the Earth’s rotation signal," David A. Salstein, an atmospheric scientist from Atmospheric and Environmental Research, said in 2003.

These variations can add up. LiveScience reportsthe Earth has actually been slowing down for the last several decades. When the time it takes earth to make a full rotation deviates from the Coordinated Universal Time (UTC) by more than .4 seconds, the UTC is adjusted.

Scientists have been adding a “leap second” every year-and-a-half on average. The last one was added on December 31, 2016.

Since the Earth has sped up, scientists believe each astronomical day in 2021 will be 0.05 milliseconds shorter, and over the course of the year, it adds up to a 19 millisecond difference.

"It's quite possible that a negative leap second will be needed if the Earth's rotation rate increases further, but it's too early to say if this is likely to happen," physicist Peter Whibberley of the National Physics Laboratory in the U.K., told The Telegraph. "There are also international discussions taking place about the future of leap seconds, and it's also possible that the need for a negative leap second might push the decision towards ending leap seconds for good."

The average person may not notice a leap second being taken away or the ones that have been added, but they will impact things like navigation, spaceflight, computer networks and astronomers.

The last time every day of a calendar year was shorter than 86,400 seconds was in 1937, according to TimeandDate.com.

https://www.thedenverchannel.com/ne...cause-earth-is-spinning-faster-scientists-say

Chakar arahe hain??

@Zibago @Areesh @dexter @fitpOsitive

Could already feel it going fast now it is gonna go faster

 

[fitpOsitive]

Photo by: NASA
NASA camera on Deep Space Climate Observatory satellite returns photo of entire sunlit side of Earth from 1 million miles away

By: Scripps National
Posted at 2:48 PM, Jan 12, 2021

and last updated 2:48 AM, Jan 13, 2021


Humans were not the only ones who wanted 2020 to be over faster. The Earth spun faster than normal last year, according to scientists.

Last year, the Earth broke the previous record for shortest astronomical day, set in 2005. In fact, the Earth broke the record 28 times in 2020. And it's still spinning faster.

While Earth is, on average, pretty reliable and takes 86,400 seconds to rotate around its axis, it’s not perfect.

"When highly accurate atomic clocks were developed in the 1960s, they showed that the length of a mean solar day can vary by milliseconds (1 millisecond equals 0.001 seconds),” write Graham Jones and Konstantin Bikos on TimeandDate.com.

How fast or slow the Earth spins can be impacted by various factors.

"Changes in the atmosphere, specifically atmospheric pressure around the world, and the motions of the winds that may be related to such climate signals as El Niño are strong enough that their effect is observed in the Earth’s rotation signal," David A. Salstein, an atmospheric scientist from Atmospheric and Environmental Research, said in 2003.

These variations can add up. LiveScience reportsthe Earth has actually been slowing down for the last several decades. When the time it takes earth to make a full rotation deviates from the Coordinated Universal Time (UTC) by more than .4 seconds, the UTC is adjusted.

Scientists have been adding a “leap second” every year-and-a-half on average. The last one was added on December 31, 2016.

Since the Earth has sped up, scientists believe each astronomical day in 2021 will be 0.05 milliseconds shorter, and over the course of the year, it adds up to a 19 millisecond difference.

"It's quite possible that a negative leap second will be needed if the Earth's rotation rate increases further, but it's too early to say if this is likely to happen," physicist Peter Whibberley of the National Physics Laboratory in the U.K., told The Telegraph. "There are also international discussions taking place about the future of leap seconds, and it's also possible that the need for a negative leap second might push the decision towards ending leap seconds for good."

The average person may not notice a leap second being taken away or the ones that have been added, but they will impact things like navigation, spaceflight, computer networks and astronomers.

The last time every day of a calendar year was shorter than 86,400 seconds was in 1937, according to TimeandDate.com.

https://www.thedenverchannel.com/ne...cause-earth-is-spinning-faster-scientists-say

Chakar arahe hain??

@Zibago @Areesh @dexter @fitpOsitive

It's pretty normal actually. In engineering we handle such phenomenon by digitization and then adding an scaling factor. For example our voice on USB Stick. It's not the real voice, it's some representation of our real voice with some "error" added.
Almost all natural phenomenon are not very much precise, because Allah has created this universe in such a way that everything has a bit of freedom as well as it has abide by certain limitations as well.
@jamahir

 

[Zibago]

Photo by: NASA
NASA camera on Deep Space Climate Observatory satellite returns photo of entire sunlit side of Earth from 1 million miles away

By: Scripps National
Posted at 2:48 PM, Jan 12, 2021

and last updated 2:48 AM, Jan 13, 2021


Humans were not the only ones who wanted 2020 to be over faster. The Earth spun faster than normal last year, according to scientists.

Last year, the Earth broke the previous record for shortest astronomical day, set in 2005. In fact, the Earth broke the record 28 times in 2020. And it's still spinning faster.

While Earth is, on average, pretty reliable and takes 86,400 seconds to rotate around its axis, it’s not perfect.

"When highly accurate atomic clocks were developed in the 1960s, they showed that the length of a mean solar day can vary by milliseconds (1 millisecond equals 0.001 seconds),” write Graham Jones and Konstantin Bikos on TimeandDate.com.

How fast or slow the Earth spins can be impacted by various factors.

"Changes in the atmosphere, specifically atmospheric pressure around the world, and the motions of the winds that may be related to such climate signals as El Niño are strong enough that their effect is observed in the Earth’s rotation signal," David A. Salstein, an atmospheric scientist from Atmospheric and Environmental Research, said in 2003.

These variations can add up. LiveScience reportsthe Earth has actually been slowing down for the last several decades. When the time it takes earth to make a full rotation deviates from the Coordinated Universal Time (UTC) by more than .4 seconds, the UTC is adjusted.

Scientists have been adding a “leap second” every year-and-a-half on average. The last one was added on December 31, 2016.

Since the Earth has sped up, scientists believe each astronomical day in 2021 will be 0.05 milliseconds shorter, and over the course of the year, it adds up to a 19 millisecond difference.

"It's quite possible that a negative leap second will be needed if the Earth's rotation rate increases further, but it's too early to say if this is likely to happen," physicist Peter Whibberley of the National Physics Laboratory in the U.K., told The Telegraph. "There are also international discussions taking place about the future of leap seconds, and it's also possible that the need for a negative leap second might push the decision towards ending leap seconds for good."

The average person may not notice a leap second being taken away or the ones that have been added, but they will impact things like navigation, spaceflight, computer networks and astronomers.

The last time every day of a calendar year was shorter than 86,400 seconds was in 1937, according to TimeandDate.com.

https://www.thedenverchannel.com/ne...cause-earth-is-spinning-faster-scientists-say

Chakar arahe hain??

@Zibago @Areesh @dexter @fitpOsitive

Merey ko to neend a rahi hy

 

[-blitzkrieg-]

That means our clocks will have a lag by the end of the year?
approximately how much?

 

[crigar]

I can feel this. whenever I am at home these leap seconds get deducted and added when I get to the office.

 

[gulli]

They allowed desi daru in NASA as well??

 

[jamahir]

In engineering we handle such phenomenon by digitization and then adding an scaling factor. For example our voice on USB Stick. It's not the real voice, it's some representation of our real voice with some "error" added.

What do you mean by "scaling factor" in context of say a MP3 audio on a USB stick ?

 

[fitpOsitive]

What do you mean by "scaling factor" in context of say a MP3 audio on a USB stick ?

We always have a equitization error. Sometimes, when even high resolution is not enough, a small offset to individual samples is added (or substracted) in order to get desired results. Usually used in music and synthesized sound industry.

 

[Titanium100]

There is no scientific evidence for this but time has been flying ridiculously as of late and Much faster then the 90s example

 

[xyxmt]

every year will seem shorter after 2020

 

[gangsta_rap]

We always have a equitization error. Sometimes, when even high resolution is not enough, a small offset to individual samples is added (or substracted) in order to get desired results. Usually used in music and synthesized sound industry.

audio normalization