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| Thread ID: 139865 | 2015-07-13 02:48:00 | Can I have a $ each way please? | B.M. (505) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1404716 | 2015-07-29 20:41:00 | Everything you need to know and more. :D chemwiki.ucdavis.edu A clip: "Water continues to become more dense until it reaches 4°C. After it reaches 4°C, it becomes LESS dense. When freezing, molecules within water begin to move around more slowly, making it easier for them to form hydrogen bonds and eventually arrange themselves into an open crystalline, hexagonal structure. Because of this open structure as the water molecules are being held further apart, the volume of water increases about 9%. " Which explains why frozen water pipes burst, you put antifreeze in you cars radiator and best of all, why Melting Icebergs and Melting Sea Ice doesn’t make a blind bit of difference to the earths sea levels. :D |
B.M. (505) | ||
| 1404717 | 2015-07-29 21:45:00 | Which explains why.. and best of all, why Melting Icebergs and Melting Sea Ice doesn’t make a blind bit of difference to the earths sea levels. :D No one was arguing with that you moron The melting ice which will raise the sea level is that which is currently land based. |
Nick G (16709) | ||
| 1404718 | 2015-07-29 21:47:00 | Sounds plausible, but mixed with opinion. Source? Either of these will help. phys.org www.scientificamerican.com |
Whenu (9358) | ||
| 1404719 | 2015-07-29 22:16:00 | Either of these will help. phys.org www.scientificamerican.com Don't forget to read the comments under those links there's some classics amongst them. :thumbs: |
B.M. (505) | ||
| 1404720 | 2015-07-29 22:46:00 | snip............. and best of all, why Melting Icebergs and Melting Sea Ice doesn’t make a blind bit of difference to the earths sea levels. :D Some rotten science there, think of Archimedes. |
Terry Porritt (14) | ||
| 1404721 | 2015-07-29 23:41:00 | Some rotten science there, think of Archimedes. Not really, B.M. is right about that one point. Ice will displace the equivalent volume of it's weight in water and the rest will be above the water level. Ice floats because it's less dense than water but the total volume that is at or below the water line is exactly the same as what the ice would occupy if it melted. If you take some water out of a full glass and freeze it into a few cubes then put it back into the glass the water will raise back to the brim and some of the ice will float above it. The point that Nick is banging his head against a wall trying to make is that if more of the earths total water content is in liquid form due to a raise in average temperatures then much of that water will eventually make it's way into the oceans and raise the sea level. Specifically water that currently is land based ice and therefore not contributing to sea levels at present. |
dugimodo (138) | ||
| 1404722 | 2015-07-30 00:07:00 | Not really, B.M. is right about that one point. Ice will displace the equivalent volume of it's weight in water and the rest will be above the water level. Ice floats because it's less dense than water but the total volume that is at or below the water line is exactly the same as what the ice would occupy if it melted. If you take some water out of a full glass and freeze it into a few cubes then put it back into the glass the water will raise back to the brim and some of the ice will float above it. The point that Nick is banging his head against a wall trying to make is that if more of the earths total water content is in liquid form due to a raise in average temperatures then much of that water will eventually make it's way into the oceans and raise the sea level. Specifically water that currently is land based ice and therefore not contributing to sea levels at present. Right, and right. Thank you :) |
Nick G (16709) | ||
| 1404723 | 2015-07-30 00:08:00 | So the mighty thicko BM has finally provoked Nick into calling him a moron. Are you going to warn him too JEN? Of course BM is a moron, thicko and irrevocably stupid. And JEN, ban me if you must, but it is worth it to tell it like it is. Over and out. |
KarameaDave (15222) | ||
| 1404724 | 2015-07-30 01:22:00 | Not really, B.M. is right about that one point. Ice will displace the equivalent volume of it's weight in water and the rest will be above the water level. Ice floats because it's less dense than water but the total volume that is at or below the water line is exactly the same as what the ice would occupy if it melted. If you take some water out of a full glass and freeze it into a few cubes then put it back into the glass the water will raise back to the brim and some of the ice will float above it. The point that Nick is banging his head against a wall trying to make is that if more of the earths total water content is in liquid form due to a raise in average temperatures then much of that water will eventually make it's way into the oceans and raise the sea level. Specifically water that currently is land based ice and therefore not contributing to sea levels at present. I absolutely agree, so let’s just concentrate on the “Land Based Ice”. Now how are we going to melt it? Much of it is stuck in temperatures 20°C below or more, for most of the year, so that’s going to take some shifting seeing the Earth’s Temperature has only risen 0.777°C in the last 135 years according to NASA. :D |
B.M. (505) | ||
| 1404725 | 2015-07-30 05:42:00 | Not really, B.M. is right about that one point. Ice will displace the equivalent volume of it's weight in water and the rest will be above the water level. Ice floats because it's less dense than water but the total volume that is at or below the water line is exactly the same as what the ice would occupy if it melted. If you take some water out of a full glass and freeze it into a few cubes then put it back into the glass the water will raise back to the brim and some of the ice will float above it. The point that Nick is banging his head against a wall trying to make is that if more of the earths total water content is in liquid form due to a raise in average temperatures then much of that water will eventually make it's way into the oceans and raise the sea level. Specifically water that currently is land based ice and therefore not contributing to sea levels at present. You are right dug, Archimedes principle, but BM didn't say that, he said the sea level didn't rise because quoting Winston: "Water continues to become more dense until it reaches 4°C. After it reaches 4°C, it becomes LESS dense. When freezing, molecules within water begin to move around more slowly, making it easier for them to form hydrogen bonds and eventually arrange themselves into an open crystalline, hexagonal structure. Because of this open structure as the water molecules are being held further apart, the volume of water increases about 9%. " has nothing to do with the weight of water displaced by a floating iceberg..........hence he failed miserably again :) |
Terry Porritt (14) | ||
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