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re: Loss of Antarctic ice has caused a measurable shift in gravity
Posted on 10/1/14 at 5:57 pm to Korkstand
Posted on 10/1/14 at 5:57 pm to Korkstand
shite. If I move my keys from my left to my right there's a change.
However convection in the mantle has a much greater effect on localized gravity than this example.
It's pathetic gotcha alarmist bullshite
However convection in the mantle has a much greater effect on localized gravity than this example.
It's pathetic gotcha alarmist bullshite
2
Posted on 10/1/14 at 6:05 pm to SettleDown
quote:
Well, I suspect it's the same driver as the one discussed in this article about Low Gravity in parts of Canada
Gravity changing in a place or two = global warming
Weather conditions happening over the course of centuries over a region (like the Little Ice Age over most of the Northern Hemisphere) is only regional and is therefore left out of the equations used to determine global warming.
That's some solid science right there.
Posted on 10/1/14 at 6:09 pm to Jim Rockford
quote:
Loss of Antarctic ice has caused a measurable shift in gravity
It's true, you know.
Before this summer, I couldn't leap tall buildings in a single bound. Now I can.
Posted on 10/1/14 at 6:13 pm to Godfather1
quote:
Loss of Antarctic ice has caused a measurable shift in gravity
i like it:
Mrs. BHP - "I think you've gained weight!"
BHP: "That frickin' antarctic ice melt has the scale all 51-50
Posted on 10/1/14 at 6:17 pm to Godfather1
quote:
Before this summer, I couldn't leap tall buildings in a single bound. Now I can.
The OT could do it all along.
Posted on 10/1/14 at 6:19 pm to Bestbank Tiger
quote:
The OT could do it all along.
Pffft...OT Ballers BUY the building just to have it demolished and moved out of the way. Thus, said baller just walks right through the now vacant property
Posted on 10/1/14 at 10:23 pm to CptBengal
quote:
However convection in the mantle has a much greater effect on localized gravity than this example.
How big is the effect of convection in the mantle?
Posted on 10/1/14 at 10:37 pm to SpidermanTUba
OK, I'm really concerned
So after an LSU games is over and all the tailgators and vendors throw out their remaining ice, gravity shifts when it all melts?
Does that mean the new addition is gonna fall down cause of all that ice melting gravity shifting, right outside the stadium?
That sure was some poor planning, I tell ya
So after an LSU games is over and all the tailgators and vendors throw out their remaining ice, gravity shifts when it all melts?
Does that mean the new addition is gonna fall down cause of all that ice melting gravity shifting, right outside the stadium?
That sure was some poor planning, I tell ya
Posted on 10/1/14 at 10:39 pm to League Champs
gravity changes whenever mass changes distribution.
Posted on 10/1/14 at 10:57 pm to CptBengal
quote:
However convection in the mantle has a much greater effect on localized gravity than this example.
Some areas of Antarctica are losing ice at a rate that that causes altitude reduction of up to 1.5 meters/yr:
LINK
Given that 1) Ice has a density of .94 g/cm^3. 2)Altitude reduction rate is 1.5 meters/yr = 150 cm/yr
The order of magnitude surface density rate of change in those dark red areas on the map will be d_sigma/dt = 0.94 g/cm^3 X 150 cm/yr ~ 140 g/cm^2/yr
G = 6.67e-8 g/cm^3/s^2, and df/dt ~ 2*pi*d_sigma/dt*G, so
df/dt ~ 60 X 10^-6 cm/s^2/yr, or 60 mGal/yr.
Are you saying convection in the Earth's mantle near the Antarctic causes a far greater annual shift in gravity than 60 mGal /yr? Link?
This post was edited on 10/1/14 at 10:59 pm
Posted on 10/1/14 at 11:38 pm to SpidermanTUba
quote:
Sorry to burst your narrative.
Check the OP, it wasn't my narrative it was Slate.com's narrative. I was just putting it into the perspective such shoddy science deserves.
Posted on 10/1/14 at 11:55 pm to SpidermanTUba
quote:
Are you saying convection in the Earth's mantle near the Antarctic causes a far greater annual shift in gravity than 60 mGal /yr? Link?
How big is the mantle?
Since these simple concepts elude your grasp. ... just do your usual copypasta, fatso.
Posted on 10/2/14 at 5:26 am to Bard
Posted on 10/2/14 at 5:28 am to CptBengal
quote:
quote:
Are you saying convection in the Earth's mantle near the Antarctic causes a far greater annual shift in gravity than 60 mGal /yr? Link?
How big is the mantle?
What is the annual shift in gravity due to convention of the mantle in the same region? You said its effects must be much larger than 60 mGal per year. Can you quantify that with a number? I have no idea what the answer is. Can convection currents in the Earth's mantle actually cause a shift in gravity much larger than 60 mGal a year - at all? Examples?
quote:
Since these simple concepts elude your grasp. ... just do your usual copypasta, fatso.
I've no trouble with the concept. I'm just asking you to justify your claim.
This post was edited on 10/2/14 at 5:31 am
Posted on 10/2/14 at 5:46 am to Bard
quote:I wasn't defending the article. I was merely observing that I would assume they are making a similar argument for what is driving the gravity change in the latter case to the former.
Bard
I think the article is alarmist bull shite because even if true, the term "measurable" is goddamned meaningless. My house(and every house) has "measurably" imperfect dimensions from the original design. Measurable =/= meaningful and hell, the article doesn't even try to claim it does. They just want dumb people to go, "oh shite, AGW is causing the Earth to lose gravity!!!!"
Posted on 10/2/14 at 5:59 am to SettleDown
quote:
I think the article is alarmist bull shite because even if true, the term "measurable" is goddamned meaningless.
It isn't if you're trying to measure something.
quote:
. My house(and every house) has "measurably" imperfect dimensions from the original design.
Might wanna get your foundation checked out.
Measurements of the shift in gravity in the Antarctic are consistent with measurements of the amount of ice loss. This is important because when you have two different ways of measuring the same thing that come to the same result, it is less likely your result is in error.
This post was edited on 10/2/14 at 6:03 am
Posted on 10/2/14 at 12:52 pm to CptBengal
quote:
How the frick is that even god damn possible.
If I melt 2 grams of ice, I still have 2 grams of water.
The fricking mass hasn't changed. How in the frick would gravity...which is dependent on mass, change?
This is out of fricking control
The above post is a perfect example of why some of you on here are just fricking stupid...
This is an article of an ESA, the European Space Agency, report just noting a change in the gravitational field that is ever so slight.
From the article for the reading comprehension and the assume politics should take over crowd
'Though we all learned in high-school physics that gravity is a constant, it actually varies slightly depending on where you are on the Earth’s surface and the density of the rock (or, in this case, ice) beneath your feet. During a four-year mission, the ESA satellite mapped these changes in unprecedented detail and was able to detect a significant decrease in the region of Antarctica where land ice is melting fastest'.
cuz you know we can do that now cuz we are smart and have science and stuff.
Posted on 10/2/14 at 12:55 pm to Cruiserhog
quote:
The above post is a perfect example of why some of you on here are just fricking stupid...
CptBengal is actually the most well informed moron in the world.
quote:
During a four-year mission, the ESA satellite mapped these changes in unprecedented detail and was able to detect a significant decrease in the region of Antarctica where land ice is melting fastest'.
...but...but CptBengal says its convection in the Earth's mantle that caused that! He doesn't have any evidence, but he's a well informed moron!
Posted on 10/2/14 at 12:57 pm to Cruiserhog
quote:What effect would nonpolar tectonic shifts have on that field?
The above post is a perfect example of why some of you on here are just fricking stupid...
This is an article of an ESA, the European Space Agency, report just noting a change in the gravitational field that is ever so slight.
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