PDA

View Full Version : Two global warming scare articles with opposite warnings - you can't make this stuff up!




Madison320
12-14-2015, 02:01 PM
Melting glaciers may be slowing the Earth’s rotation!

http://www.businessinsider.com/r-melting-glaciers-blamed-for-subtle-slowing-of-earths-rotation-2015-12


Earth May Spin Faster as Glaciers Melt!

http://news.yahoo.com/earth-may-spin-faster-glaciers-melt-150016710.html

timosman
12-14-2015, 02:04 PM
Doesn't matter as long as it sounds too complicated to understand.

Mumbo Jumbo ..........Global Warming!

jbauer
12-14-2015, 03:15 PM
So wait, does a gallon of water weight more or less in frozen vs liquid form.............................................. ..............................:rolleyes:

RAC
12-14-2015, 03:19 PM
Somebody's head is spinning at Yahoo.

The Free Hornet
12-14-2015, 06:01 PM
So wait, does a gallon of water weight more or less in frozen vs liquid form.............................................. ..............................:rolleyes:

OK ... not sure if serious. Yes, a gallon of water weighs substantially more than a gallon of ice (at typical atmospheric pressures):

https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/Density_of_ice_and_water_%28en%29.svg/860px-Density_of_ice_and_water_%28en%29.svg.png

And, of course, melting doesn't change the weight. If it is a ballerina affect (solid ice from the poles flows towards the equator - or at least redistributes equally) ....

"The continental crust contains 0.374 % of the Earth's mass" of which only 1.4% is water by weight (https://en.wikipedia.org/wiki/Earth) ... so if all of Earth's (crust) water migrated to the equater, it would be like 0.005% of the Earth's mass.

A more useful ref: "'70% of the Earth's surface is water. Of this 70%, 98% is salt water, leaving 2% as fresh water. Of the 2% that is fresh, about 90% is frozen. This frozen water is locked up in the Antarctic ice sheets and glaciers on the Alps, etc.'" (http://www.funtrivia.com/askft/Question37603.html)

So, 0.374% * 1.4% * 2% * 90% = ~0.00009% of Earth's mass that could potentially make run for the equator. It might redistribute somewhat equally over the oceans so that number could be cut in half (and perhaps cut further by all the ice that is already somewhat distanced from the poles).

Having skimmed the article (Yahoo version) looking for the extent quoted - which I didn't find - they say the actual mechanism is the Earth becoming more round as weight is relieved from the crust of the ice-covered regions (and then that crust rises). Somehow ... I find that mechanism less plausible but can't say.

The numbers are so tiny not unlike random mass shootings as a percentage of murders as a percentage of deaths.

As to the contradictory headlines, it could be due to differing mechanisms:

Business Insider:
"Because glaciers are at high latitudes, when they melt they redistribute water from these high latitudes towards lower latitudes, and like a figure skater who moves his or her arms away from their body, this acts to slow the rotation rate of the Earth," Harvard University geophysicist Jerry Mitrovica said.

Yahoo!:
When polar ice caps melt, they remove weight off underlying rock, which then rebounds upward. This makes the poles less flat and the planet more round overall. This should in turn cause Earth to tilt a bit and spin more quickly.

Interesting ... but par for the course from the chicken little crowd.

Dr.3D
12-14-2015, 06:37 PM
So wait, does a gallon of water weight more or less in frozen vs liquid form.............................................. ..............................:rolleyes:
Yeah, 8.345 pounds of liquid water weighs the same when it's frozen.

Occam's Banana
12-14-2015, 09:16 PM
So wait, does a gallon of water weight more or less in frozen vs liquid form.............................................. ..............................:rolleyes:

It doesn't matter. It's not a question of weight. It's a question of the effects of particular distributions of mass upon moments of inertia (https://en.wikipedia.org/wiki/Moment_of_inertia).

Consider a board with a ten-pound weight on one end compared to the same board with a five-pound weight on each end.

Both of these arrangements involve exactly the same amounts of mass, but they have different centers of mass and will exhibit different rotational characteristics.

ETA: Figure skaters provide a classic example of the phenomenon. A spinning figure skater will spin faster if she redistributes her mass by holding her arms closer to her body, and she will spin more slowly if she redistributes her mass by extending her arms away from her body. Her weight never changes - but her moment of inertia does.

navy-vet
12-14-2015, 09:29 PM
"A pound of feathers or a pound of lead"
http://www.slate.com/articles/health_and_science/science/2014/08/what_s_heavier_a_pound_of_feathers_or_a_pound_of_l ead_a_riddle_explained.html

ZENemy
12-14-2015, 09:35 PM
Its ok guys, TAXES are gonna fix it!

No matter what problems we have with the weather the answer is just give more money to somebody and things will be fine.

navy-vet
12-14-2015, 09:38 PM
Its ok guys, TAXES are gonna fix it!

No matter what problems we have with the weather the answer is just give more money to somebody and things will be fine.
Just be ready to head for higher ground. Better yet, build you a fortress on a mountain top in granite.

Danke
12-14-2015, 09:43 PM
I have a few theories myself about climate change, but I've not received funding yet to publish them.

dusman
12-14-2015, 09:52 PM
Yeah, but I don't see how this fits into their flat earth model. :(

XNavyNuke
12-15-2015, 07:13 AM
Society if focused on new lint in the belly button an completely ignore the big picture. Climate change is about further concentration of political power in the hands of the few, nothing more.

Wake me when every public school has one of these posters required to be hung in their classrooms.
younger_dryas_to_present_time_line (https://andymaypetrophysicist.files.wordpress.com/2015/11/younger_dryas_to_present_time_line_updated2.pdf)

XNN

Madison320
12-15-2015, 11:01 AM
Its ok guys, TAXES are gonna fix it!

No matter what problems we have with the weather the answer is just give more money to somebody and things will be fine.

Yup. Follow the money. Most of those "scientists" are out of a job if there's no man made global warming. Their life depends on the existence of global warming. That's a pretty strong bias.

idiom
12-15-2015, 12:43 PM
Yeah, 8.345 pounds of liquid water weighs the same when it's frozen.

8.what now?

1 Mililitre of water takes up .01m x .01m .01m of space (or 1 cm³) and weighs 1 gram
1 litre of water takes up .1m x .1m .1m of space (1 dm³) and weighs 1 kilogram
1000 litres of water takes up 1m x 1m x 1m of space (1 m³) and weighs 1000 kilograms, or 1 tonne.

Slightly bigger volume when frozen.


I am pretty sure avoidance of the metric system is part of the deliberate dumbing down of America.

navy-vet
12-15-2015, 04:07 PM
Society if focused on new lint in the belly button an completely ignore the big picture. Climate change is about further concentration of political power in the hands of the few, nothing more.

Wake me when every public school has one of these posters required to be hung in their classrooms.
younger_dryas_to_present_time_line (https://andymaypetrophysicist.files.wordpress.com/2015/11/younger_dryas_to_present_time_line_updated2.pdf)

XNN
In the ongoing battle to gain more power and control....Never let a good crisis go to waste. And if there is one lacking, then create one.

Slave Mentality
12-15-2015, 10:50 PM
Looking forward to the War on Global Climate Change. Just wait.

Dr.3D
12-16-2015, 09:38 AM
8.what now?

1 Mililitre of water takes up .01m x .01m .01m of space (or 1 cm³) and weighs 1 gram
1 litre of water takes up .1m x .1m .1m of space (1 dm³) and weighs 1 kilogram
1000 litres of water takes up 1m x 1m x 1m of space (1 m³) and weighs 1000 kilograms, or 1 tonne.

Slightly bigger volume when frozen.


I am pretty sure avoidance of the metric system is part of the deliberate dumbing down of America.
Does it really matter what system is used to weigh the water? A mass of water weighs the same whether it's frozen or not.

Ronin Truth
12-17-2015, 07:05 AM
Why not? They sure can and do. :p :mad:

mrsat_98
12-22-2015, 04:34 AM
Boobus has run amuck in this tread.

mrsat_98
12-22-2015, 04:39 AM
Does it really matter what system is used to weigh the water? A mass of water weighs the same whether it's frozen or not.

A gallon refers to the volume ( size of the container ) and has nothing to do with weight. However a gallon of water will always weigh the same at the same temp and. IF you take a gallon of water and freeze it, it will expand meaning you have more than a gallon of ice.

Unless you use common core math.

The US liquid gallon[edit]
The US gallon, which is equal to approximately 3.785 L, is legally defined as 231 cubic inches.[1][2] A US liquid gallon of water weighs about 8.34 pounds or 3.78 kilograms at 62 °F (17 °C), making it about 16.6% lighter than the imperial gallon. There are four quarts in a gallon, two pints in a quart and 16 US fluid ounces in a US pint, which makes a US gallon equal to 128 fl. oz. In order to overcome the effects of expansion and contraction with temperature when using a gallon to specify a quantity of material for purposes of trade, it is common to define the temperature at which the material will occupy the specified volume. For example, the volume of petroleum products[3] and alcoholic beverages[4] are both referenced to 60 °F (16 °C) in government regulations.

Dr.3D
12-22-2015, 08:05 AM
A gallon refers to the volume ( size of the container ) and has nothing to do with weight. However a gallon of water will always weigh the same at the same temp and. IF you take a gallon of water and freeze it, it will expand meaning you have more than a gallon of ice.

Unless you use common core math.

The US liquid gallon[edit]
The US gallon, which is equal to approximately 3.785 L, is legally defined as 231 cubic inches.[1][2] A US liquid gallon of water weighs about 8.34 pounds or 3.78 kilograms at 62 °F (17 °C), making it about 16.6% lighter than the imperial gallon. There are four quarts in a gallon, two pints in a quart and 16 US fluid ounces in a US pint, which makes a US gallon equal to 128 fl. oz. In order to overcome the effects of expansion and contraction with temperature when using a gallon to specify a quantity of material for purposes of trade, it is common to define the temperature at which the material will occupy the specified volume. For example, the volume of petroleum products[3] and alcoholic beverages[4] are both referenced to 60 °F (16 °C) in government regulations.
But you see, my reference was in pounds, not gallons. I had just converted his gallon to pounds to illustrate what he was trying to say. If you take a gallon of water and freeze it, it still weighs the same as it did when it was liquid. Yes it would change volume, but it would still be the same mass of water as before it was frozen.