4 ms·
4th State of Water
- jastanton 15y ago4th state of water is a slushi... good observation scientists. good observation.
- bediger 15y agoLooks like people have known about many phases of water for ages: http://www.lsbu.ac.uk/water/phase.html http://www.lsbu.ac.uk/water/phase.html Oddly, it appears that Ice XIII and Ice X exist, but not Ice IX.
- hugh3 15y agoLook closer, Ice IX is on that phase diagram. Temperatures below 200K, and a very narrow pressure range just above I and XI.
- Daniel_Newby 15y ago> very narrow pressure range On a logarithmic scale.
- iclelland 15y agohttp://en.wikipedia.org/wiki/Ice_IX http://en.wikipedia.org/wiki/Ice_IX
- listrophy 15y agoIs this just an addition to the already-known 15 types of ice? http://en.wikipedia.org/wiki/Ice#Phases http://en.wikipedia.org/wiki/Ice#Phases
- hugh3 15y agoYes, except it's a new liquid phase rather than a new solid one.
- ajray 15y agoAs someone who did computational modeling of water, this strikes me as kind of odd. The "hello world" of computational molecular dynamics is simulating water in different phases, phase changes, etc. (including the different ices). I'm interested to hear more, but incredulous.
- figure8 15y agoCan this kind of molecular dynamics simulation by done on a simple desktop machine? What system and software do you recommend if I want to experiment with simulation, starting with this "hello world" project? Do you recommend starting from scratch or using some specialized framework? (For context, I'm a professional programmer and mathematician by training.)
- hugh3 15y agoJust to clarify, this isn't a fourth state, this just seems to be a different liquid phase. Water has a hugely complicated phase diagram -- there's fifteen phases of water ice known experimentally and a few more predicted in theory. I haven't been able to find the original paper (damn you discovery.com) so let me know if you find it.
- ggchappell 15y agoCouldn't find it either, but after looking around, it appears to me that the research discussed in the posted article is not so ground-breaking as the writer suggests (of course, it hardly ever is, y'know). Papers about liquid-liquid phase transitions in water go back a number of years. For example, here is a paper from 1997 that speculates about such a phase transition. http://iopscience.iop.org/0295-5075/42/2/161 http://iopscience.iop.org/0295-5075/42/2/161 And here is a recent paper about such a phase transition found in a computer model (which seems to be what the posted article is talking about). This paper is not by Kumar & Stanley, but it cites a number of papers of theirs. http://arxiv.org/abs/1105.5295 http://arxiv.org/abs/1105.5295
- gyom 15y agoFrom the looks of the article, it seems like it's meant for people who are interested in popular science, but then the author uses degrees Fahrenheit everywhere.
- brlewis 15y agoWhy is water thought to have only 3 states? Is it impossible to transform water into a plasma state?
- trebor 15y agoIt should probably be expressed as a "sub-state". - Solid - However many states there are... - Liquid - Odd Liquid - Gas - Plasma?
- Avshalom 15y agoI don't know for certain, but I suspect in plasma situations it stops be H2O and becomes hydrogen and oxygen plasmas separately and can't really be considered water any more.
- cjensen 15y agoWater is a molecule, not an atom. There are no molecules in plasma since the electrons have all wandered off. So if you heat water gas enough, it becomes a plasma of hydrogen and oxygen.
- brlewis 15y agoYou are almost 100% right. There are almost never any molecules in plasma: http://physics.aps.org/story/v22/st17 http://physics.aps.org/story/v22/st17
- sukuriant 15y agoThis article is EMPTY of details, and for someone actually interested in this new phase of water, I am severly annoyed.
- brokentone 15y agoI genuinely hope that "someone actually interested in this new phase of water" is on your business card, resume, or at least your Twitter profile.
- mcdaid 15y agoCelsius please, or at least have both.This is supposed to be science not a localised weather report.