I thought all the ice was supposed to be melting

platinum87 said:
this has nothing to do with AS physics, its a matter of geography.

so if i correct people that are wrong i am a troll?
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I thought you were stating that when water heated up it expanded, as someone else did.

No, you are a troll because you make replies in a way that riles people up needlessly.

There is no underwater ice apart from that which is pushed down by the ice on top of the water. It doesn't stay at the bottom of the sea you know it floats so you theory is void.
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There is ice that is under water, it is under other ice. If for SOME REASON the ice under the water, and not the ice above the water, melted, the sea level would drop. I KNOW it is not possible and it will not happen, but it is still the case.
 
Hxc said:
I thought you were stating that when water heated up it expanded, as someone else did.

No, you are a troll because you make replies in a way that riles people up needlessly.
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When water heats up it expands. Its a fact. from 4 degrees to 100 it is true. Below 4 the opposite happens as it forms a crystal structure known as ice.

Water starts out behaving normally. As its temperature drops, water obediently shrinks together--until it reaches 4 degrees Celsius (39 degrees F.). Then, amazingly, water reverses course, its volume slowly increasing as it chills. When water finally freezes, at 0 C (32 F.), it expands dramatically.
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Ross1234 said:
When water heats up it expands. Its a fact. from 4 degrees to 100 it is true. Below 4 the opposite happens as it forms a crystal structure known as ice.
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Okies. Cheers. I was not aware of this.

Any idea how much it expands as it would heat up to the temprature of the sea, out of interest? Would it be smaller or grater than it's volume when ice?
 
Hxc said:
I thought you were stating that when water heated up it expanded, as someone else did.

No, you are a troll because you make replies in a way that riles people up needlessly.
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i did say it, among other things

and its not my fault that every little thing gets you riled up

edit: mabye 1 metre per 1 degree celcius, but it would be more complicated than that, you cant really measure these things
 
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Hxc said:
Okies. Cheers. I was not aware of this.

Any idea how much it expands as it would heat up to the temprature of the sea, out of interest? Would it be smaller or grater than it's volume when ice?
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Much smaller than its volume in ice of course. It only expands very slightly, but if you take in to account how deep the sea is you can imagine that the sea will rise.
 
Could it be that the sea ice recovery in Q4'2008 is somehow related to the world economic credit crunch which occured at the same time?
 
Hxc said:
There is ice that is under water, it is under other ice. If for SOME REASON the ice under the water, and not the ice above the water, melted, the sea level would drop. I KNOW it is not possible and it will not happen, but it is still the case.
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Well actually it wouldn't because the buoyancy of the "underwater" ice would offset the displacement effect of the weight of the ice above it.
 
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