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pErvinalia
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Re: Republicans

Post by pErvinalia » Tue Oct 16, 2018 12:22 am

That's not a good analogy, as sea ice largely floats on top of the water, not in the water like ice cubes.

edit: looking at this, it might be more complicated
Because ice shelves already float in the ocean, they do not contribute directly to sea level rise when they break up. However, ice shelf collapse could contribute to sea level rise indirectly. Ice streams and glaciers constantly push on ice shelves, but the shelves eventually come up against coastal features such as islands and peninsulas, building pressure that slows their movement into the ocean. If an ice shelf collapses, the backpressure disappears. The glaciers that fed into the ice shelf speed up, flowing more quickly out to sea. Glaciers and ice sheets rest on land, so once they flow into the ocean, they contribute to sea level rise.

Research suggests that glaciers behind ice shelves may accelerate by as much as five times following a rapid ice shelf retreat. To read about a recent study on such glacial acceleration, see the 2004 news release, Antarctic Glaciers Accelerate in Wake of Ice Shelf Breakup.
Last edited by pErvinalia on Tue Oct 16, 2018 12:24 am, edited 1 time in total.
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Re: Republicans

Post by Animavore » Tue Oct 16, 2018 12:23 am

Śiva wrote:
Tue Oct 16, 2018 12:13 am
Animavore wrote:
Tue Oct 16, 2018 12:08 am
I just brained my damage reading that.
Here's an experiment you can do at home:

Put a couple of ice cubes in a glass.

Fill the glass to the brim.

Allow the ice to melt.

Observe the result.

Let me know how it goes. :tup:
Are they hexagonal ice cubes?

Do they take up more volume than the water?
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Re: Republicans

Post by Jason » Tue Oct 16, 2018 12:28 am

The crystalline structure of frozen water is hexagonal, Ani.

Here's a picture:

Image

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Re: Republicans

Post by Animavore » Tue Oct 16, 2018 12:32 am

Śiva wrote:
Tue Oct 16, 2018 12:28 am
The crystalline structure of frozen water is hexagonal, Ani.

Here's a picture:

Image
Śiva wrote:
Tue Oct 16, 2018 12:28 am
The crystalline structure of frozen water is hexagonal, Ani.

Here's a picture:

Image
Fair enough.

The whole argument is a straw man any way. It's not melting sea ice which is the problem. It's the land ice the sea ice holds back which is the problem.

So his "argument" is still stupid as fuck.
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Re: Republicans

Post by Woodbutcher » Tue Oct 16, 2018 1:15 am

Take some ice cubes and put them in a glass. Fill it to the brim with water. Wait for the ice cubes to melt. Will the water level
a) Rise
b) Lower
c) Stay the same
provided your cat does not knock the glass over or drink from it? :prof:
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Re: Republicans

Post by Sean Hayden » Tue Oct 16, 2018 1:52 am

Given the hydrogen bonds that give water the unique property of being less dense as a solid than a liquid, I would expect the water level to drop as the ice melts and becomes more dense. :dunno:

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Re: Republicans

Post by pErvinalia » Tue Oct 16, 2018 1:58 am

Yep. But it's not analogous to ice-shelves. Not only because of the barrier it presents to glacial flow, but there is a large quantity of ice above sea level that adds to sea level when it melts.
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Re: Republicans

Post by Brian Peacock » Tue Oct 16, 2018 3:00 am

A better experiment would be to pile a load of ice on the coffee table, let it melt and observe the result.
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Re: Republicans

Post by Sean Hayden » Tue Oct 16, 2018 3:07 am

You take the dog out?

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Re: Republicans

Post by JimC » Tue Oct 16, 2018 3:09 am

Sean Hayden wrote:
Tue Oct 16, 2018 1:52 am
Given the hydrogen bonds that give water the unique property of being less dense as a solid than a liquid, I would expect the water level to drop as the ice melts and becomes more dense. :dunno:
The volume of ice above the surface exactly compensates for that...
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Re: Republicans

Post by Sean Hayden » Tue Oct 16, 2018 3:11 am

Indeed, too cool.

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Re: Republicans

Post by JimC » Tue Oct 16, 2018 3:14 am

The left has antifa...

The right has antisci...
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Re: Republicans

Post by pErvinalia » Tue Oct 16, 2018 3:28 am

JimC wrote:
Tue Oct 16, 2018 3:09 am
Sean Hayden wrote:
Tue Oct 16, 2018 1:52 am
Given the hydrogen bonds that give water the unique property of being less dense as a solid than a liquid, I would expect the water level to drop as the ice melts and becomes more dense. :dunno:
The volume of ice above the surface exactly compensates for that...
Ha, good point!
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Re: Republicans

Post by Seabass » Tue Oct 16, 2018 3:38 am

Brian Peacock wrote:
Tue Oct 16, 2018 3:00 am
A better experiment would be to pile a load of ice on the coffee table, let it melt and observe the result.
An even better experiment would be to drop all Republicans in the sea
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Re: Republicans

Post by Brian Peacock » Wed Oct 17, 2018 2:36 am

Rationalia relies on voluntary donations. There is no obligation of course, but if you value this place and want to see it continue please consider making a small donation towards the forum's running costs.
Details on how to do that can be found here.

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There are two other possibilities: one is paperwork, and the other is nostalgia."

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"This is how humanity ends; bickering over the irrelevant."
Clinton Huxley » 21 Jun 2012 » 14:10:36 GMT
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