Earth Is Spinning Faster Now Than It Was 50 Years Ago

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Message 2090969 - Posted: 27 Dec 2021, 18:29:43 UTC

Earth Is Spinning Faster Now Than It Was 50 Years Ago

Compensating for the lost time may prove challenging for scientists.
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Message 2090977 - Posted: 27 Dec 2021, 20:13:18 UTC - in response to Message 2090969.  
Last modified: 27 Dec 2021, 20:19:20 UTC

Thanks for a good article.

However, there's no mystery there...

The rotation of our Earth should steadily slow down (days get longer) due to the moon steadily being dragged around by the tides. (In consequence, the moon is being pulled into an ever higher orbit.)

And for the recent anomalous Earthly speedup instead...?


The first clue is from the results of GRACE...


No mystery needed. There is a (very scary) very human effect...

All on our only one world...
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Message 2090980 - Posted: 27 Dec 2021, 20:38:09 UTC - in response to Message 2090969.  

I find space time to be hard to wrap my head around but I can see how gravity wave could cause the speedup.
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Message 2090989 - Posted: 27 Dec 2021, 22:36:25 UTC - in response to Message 2090980.  
Last modified: 27 Dec 2021, 22:38:05 UTC

Good guess, but nope, that ain't any "gravity wave".

Not due to our natural moon either!

And yet... We are all feeling a shift in the (real world) force...


Which comes to the question of what has shifted, and why...

(Flat Earthers will need to adjust their view...)


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Message 2090993 - Posted: 27 Dec 2021, 23:11:18 UTC - in response to Message 2090989.  

A gravity wave distorts space time and this speedup is certainly a distortion of sorts.
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Message 2091002 - Posted: 28 Dec 2021, 1:42:32 UTC - in response to Message 2090993.  
Last modified: 28 Dec 2021, 1:43:57 UTC

Mmmm, within the world of my limited understanding, as far as I know, we've not yet developed any sort of physical "Star Trek" styled warp device.

Mischievous aliens could be playing tricks on us all...

However, there is a much more Earthly reason that avoids breaking any of our present day physics.

Mass and momentum and energy remain conserved.

So... How might that be?

And why does the GRACE probes uncover the 'disturbance'?...

And why for only recently and for the immediate future ?


Note: Doesn't work for a flat Earth.

All on our only one planet,
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Message 2091010 - Posted: 28 Dec 2021, 2:32:41 UTC - in response to Message 2091002.  

I like your hypothesis that Grace posits however I shall continue to crunch for GWs over at Einstein.
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Message 2091035 - Posted: 28 Dec 2021, 12:43:58 UTC - in response to Message 2091010.  
Last modified: 28 Dec 2021, 12:47:24 UTC

I would have bet that the earth is spinning slower now. The rivers which flow to the equator deposit more and more silt and other mass closer to the middle surface of the globe and further from the center of gravity. Therefore, just like the ice skater, rotation speed will decrease as angular momentum is preserved as a constant value.
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Message 2091036 - Posted: 28 Dec 2021, 12:51:20 UTC - in response to Message 2091035.  

Bingo!

You've got it!!

... Except... It ain't river silt.

So... What on earth are we so industriously shifting to shift the earth itself?


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Message boards : Science (non-SETI) : Earth Is Spinning Faster Now Than It Was 50 Years Ago


 
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