Wait a second....

User45701

right...

does thins make sense

if water expands when it frrezes and the majority of frozen water is in the caps in antartica - not the ice bergs in the north poll that means if they all completly melt they will actually occupy less volume in the water (wait do i say take up less volume or take up less space?) - and the sea water wont rise WTF? does that make senxe?

AlmightyCushion

Isn't a good chunk of that ice above the surface of the water though?

deathrider

User45701 wrote: »

does thins make sense

No. I think it's the letter N that's throwing it off.

ft9

Sweet mother of divine...

CrazyRabbit

All that cold ice water will affect the oceans currents. The warm water from the gulf of mexico that keeps Ireland's weather reasonably mild would disappear. Our winters would become similar to Moscow (same latitude).

So...it would get much more miserable here.

So...lets keep the fecking ice intact please. I hate the ****ing cold.

chucken1

User45701 wrote: »

right...

does thins make sense

if water expands when it frrezes and the majority of frozen water is in the caps in antartica - not the ice bergs in the north poll that means if they all completly melt they will actually occupy less volume in the water (wait do i say take up less volume or take up less space?) - and the sea water wont rise WTF? does that make senxe?

deathrider wrote: »

No. I think it's the letter N that's throwing it off.

That dam North poll...

CrazyBiscuit

AlmightyCushion wrote: »

Isn't a good chunk of that ice above the surface of the water though?

This.

Besides the fact that a good amount of it is not actually taking up space in the water, it is all in one place. If it melts it wont be all at the poles anymore so will spread out everywhere, hence the overall level globally will rise.

Tar.Aldarion

somebodies had a few when they get to this thought in their head
It would indeed rise, even if most of it is below water.

Absurdum

Why don't we just drink all the water???????????????????/

Tar.Aldarion

I'm watching my sodium.

humberklog

CrazyBiscuit wrote: »

This.

Besides the fact that a good amount of it is not actually taking up space in the water, it is all in one place. If it melts it wont be all at the poles anymore so will spread out everywhere, hence the overall level globally will rise.

Are you sure of the maths of this? I think Archimedes might've disagreed.

RichieC

https://www.youtube.com/watch?v=MozcU7woNNQ

humberklog

AlmightyCushion wrote: »

Isn't a good chunk of that ice above the surface of the water though?

If you take a glass of water with ice in it and measure the water level before and after the ice melts the water level will remain the same. So therefore the melting of the ice caps won't in itself raise ocean water levels.

deathrider

Wait! This isn't how the world is going to end, is it? I was kinda hoping for a quick firey death, as opposed to a slow cold one.

jimmycrackcorm

This thread totally deserves to be merged in to the justifying headshops thread.

shampon

https://www.youtube.com/watch?v=iO3sBulXpVw

Bruce Lee FTW

Tar.Aldarion

humberklog wrote: »

If you take a glass of water with ice in it and measure the water level before and after the ice melts the water level will remain the same. So therefore the melting of the ice caps won't in itself raise ocean water levels.

It does actually? You crazy man. Annnnd ice sits much higher in salt water due to density, so it's even a more profound affect.

/sets bait

Fremen

If you let an ice cube melt in a glass the water level stays the same. Something similar probably applies to seawater, but it may be more complicated because of tidal forces, salt content, etc...

humberklog

Fremen wrote: »

If you let an ice cube melt in a glass the water level stays the same. Something similar probably applies to seawater, but it may be more complicated because of tidal forces, salt content, etc...

Yeah, I just said that but the analogy can be used to see some consequences too. Fill a glass mostly with ice and pour it over someone and fill a glass with only water and to the same level and pour that over someone else. Well, the person with the glass of only water poured over them will be more wet.

Tar.Aldarion

Fremen wrote: »

If you let an ice cube melt in a glass the water level stays the same. Something similar probably applies to seawater, but it may be more complicated because of tidal forces, salt content, etc...

The actual answer is that salt water and freshwater have different densities, so when the ice melts more water actually is added, common misconception arises from the Archimedes Principle. Freshwater has more volume than salt water and so there will be some % difference in volume of the ocean. Not only this a lot of the ice that would melt is actually on land and not displacing any water

humberklog

Tar.Aldarion wrote: »

It does actually? You crazy man. Annnnd ice sits much higher in salt water due to density, so it's even a more profound affect.

/sets bait

No it doesn't, looks as though it should but it doesn't.

humberklog

Tar.Aldarion wrote: »

The actual answer is that salt water and freshwater have different densities, so when the ice melts more water actually is added, common misconception arises from the Archimedes Principle. Freshwater has more volume than salt water and so there will be some % difference in volume of the ocean. Not only this a lot of the ice that would melt is actually on land and not displacing any water

Sure, sure but the %diff. isn't that big a deal...is it?

Tar.Aldarion

humberklog wrote: »

No it doesn't, looks as though it should but it doesn't.

you're meant to get more angry than that at bait silly chap :P
was only messing

humberklog wrote: »

Sure, sure but the %diff. isn't that big a deal...is it?

I don't really know, I haven't read papers on water in years, exes brother is a 'water scientist' in NASA and i took an interest in water for no reason I think it's probably like 5% or less so i don't know how much of an affect that would really have, it's more the amount on land I'd say.

humberklog

Tar.Aldarion wrote: »

you're meant to get more angry than that at bait silly chap :P
was only messing


I don't really know, I haven't read papers on water in years, exes brother is a 'water scientist' in NASA and i took an interest in water for no reason I think it's probably like 5% or less so i don't know how much of an affect that would really have, it's more the amount on land I'd say.

Ah balls...another thing to be worried about:(. I was happy out with my comfort blanket of Archimedes. All ruined now.

Tar.Aldarion

sad times when naked men in baths are all that's left to comfort us beteen fantasy and bleak reality :P

--LOS--

Tar.Aldarion wrote: »

somebodies had a few when they get to this thought in their head
It would indeed rise, even if most of it is below water.

can we please ban Tarald arion on such discussions?

CrazyBiscuit

humberklog wrote: »

Are you sure of the maths of this? I think Archimedes might've disagreed.

You do know that in Antartica is land? And that land is covered in ice. If that ice melts, the water will enter the oceans.

Tar.Aldarion

CrazyBiscuit wrote: »

You do know that in Antartica is land? And that land is covered in ice. If that ice melts, the water will enter the oceans.

I have already scared humberklog enough for the evening

Victor

humberklog wrote: »

If you take a glass of water with ice in it and measure the water level before and after the ice melts the water level will remain the same. So therefore the melting of the ice caps won't in itself raise ocean water levels.

True, but that only applies to the North Pole. The ice on the South Pole is on average 2,450m metres thick and the south pole itself is at 2800m. So all that ice would come off the land and into the ocean.

https://www.cia.gov/library/publications/the-world-factbook/docs/refmaps.html
http://en.wikipedia.org/wiki/Climate_of_Antarctica
http://en.wikipedia.org/wiki/Climate_of_Antarctica

smellslikeshoes

Gotta love Saturday night threads after pub haha.

On the upside when all ice melts we can all buy apartments in Antarctica

/thread.

suicide_circus

The knowledge economy you say....

ardinn

humberklog wrote: »

Yeah, I just said that but the analogy can be used to see some consequences too. Fill a glass mostly with ice and pour it over someone and fill a glass with only water and to the same level and pour that over someone else. Well, the person with the glass of only water poured over them will be more wet.

W....T....F....

AlmightyCushion

I'm not worried, I live on the first floor so I'm safe. Worst case scenario I might have to buy a canoe.

orourkeda

User45701 wrote: »

right...

does thins make sense

if water expands when it frrezes and the majority of frozen water is in the caps in antartica - not the ice bergs in the north poll that means if they all completly melt they will actually occupy less volume in the water (wait do i say take up less volume or take up less space?) - and the sea water wont rise WTF? does that make senxe?

Ice will melt. Water will boil. You and I can shake off this mortal coil

BASHIR

Ha ha gotta love the pub physics lessons. Alot of the ice caps sit above the sea level these melting can surely only add to the level. even density of the sea water and ice would be negligible considering the scale we are talking. density of sea water =1025 kg/m3 density of fresh water =1000kg/m3. We're gonna have to learn to swim fast, think waterworld here people.

AlmightyCushion

BASHIR wrote: »

Ha ha gotta love the pub physics lessons. Alot of the ice caps sit above the sea level these melting can surely only add to the level. even density of the sea water and ice would be negligible considering the scale we are talking. density of sea water =1025 kg/m3 density of fresh water =1000kg/m3. We're gonna have to learn to swim fast, think waterworld here people.

Plus all we have to do is drink more water and problem solved.

BASHIR

Have i taught you nothing, what goes in must come out, its not always pretty

Zaffy

humberklog wrote: »

If you take a glass of water with ice in it and measure the water level before and after the ice melts the water level will remain the same. So therefore the melting of the ice caps won't in itself raise ocean water levels.

A lot of ice is ontop of greenland as well, so that'll boost up the levels a bit too.

Spunge

There's a good documentary about this, i think Kevin Costner was in it.