What is Digg?21 Comments
- JeffD, on 10/12/2007, -0/+1sydnius, I would suggest that you read the actual study if you want details like that instead of some science reporters summary.
Which unfortunatly, this reporter does not actually refer to aside from briefly "A breakthrough new study, announced today." That kind of makes it hard to track down and verify when he doesnt give out any sourcees. - MattZed, on 10/12/2007, -0/+1Cold energy is transferred from the ice cube to your drink, as the ice cube loses energy, it begins to melt. Energy cannot be created or destroyed, so that explains why it melts. Thats as good of an explanation that I'll ever need.
- fourcorners, on 10/12/2007, -0/+0I meant simulation as any experimental set-up ;)
- Otto, on 10/12/2007, -0/+0"Cold energy"? LOL
You mean heat is transferred from the drink to the ice. Heat is energy, cold is lack of energy. - wilgamesh, on 10/12/2007, -0/+0the title of the original science article is
"Premelting at Defects Within Bulk Colloidal Crystals".
the title of the news article is
"How ice melts."
the scientists do not claim to explain specifically how ice melts, but they do attempt to make some general, universal comments about the melting process in general, i.e. transition from crystalline order to non-crystalline order. this has happened in science before, such as the explanation of the critical exponent of the liquid-vapor transition and its mapping to the 2D ising model. so sometimes simpler systems can teach us something about complex systems.
regarding hydrogen bonds, perhaps, hydrogen-bonding is not _crucial_ to the melting process since many other things without hydrogen-bonds also undergo melting. that's why this was a general commentary on the dynamics of melting.
also, this wasn't a 'simulation' assuming simulation refers to a computational simulation, unless you construe any experimental set-up as a 'simulation.' - fourcorners, on 10/12/2007, -0/+0Why would anyone have a problem with using a simulation to help solve a theory? If it's correct it can be deduced to a mathematical puzzle, if it fits it's correct and if it doesn't it's incorrect.
- Jibberish, on 10/12/2007, -0/+0"some people are studying the wrong stuff. if your going to spend your day trying to figure that out, you should be slapped. go digg a well in africa or something. god dammmit why do people waiste so much money and time on useless stuff."
@MrZop
I cannot believe that somebody in this day and age actually thinks that. What a completely ignorant comment. Do you realize that you typed that comment on a computer? I mean don't question me about the specifics of it, but I am pretty sure that a lot of people spent a lot of time and money developing this “Useless� technology. I guess in your world Africa is full of wells that people spent their precious time digging, instead of furthering the advancement of technology. The implications of understanding why a material melts is extremely important. Creating machinery to harness the vast energy offered to us by geothermal activity is extremely important as well as creating enclosures to harness fusion reactions. If we can stop certain materials from melting, these technologies become that much more within our reach. If we understand how to accomplish these things, we will not have to dig wells any more. We will be able to pump fresh water to the people that need it by the use of free energy. - sydnius, on 10/12/2007, -0/+0Sure, the model behaves this way, but there is no explanation of the choice of or details of the model, other than being an observable matrix useful for experimental purposes. The very nature of water is "different" from a molecular perspective w.r.t. other molecules. Hydrogen bonding in the liquid state is so strong that ice EXPANDS as it freezes. Is this accounted for in the model at all? If not, this model cannot possibly serve as a representation of reality, and certainly cannot explain the melting of ice. Whether this is the fault of experiment or reporting, I cannot say.
- cool4u2view, on 10/12/2007, -0/+0MattZed your explaination is backwards...
- scotty6969, on 10/12/2007, -0/+0gets hot, ice melts , as simple as that
- dinki, on 10/12/2007, -0/+0What's next, "How Paint Dries"?! :P
- MrZop, on 10/12/2007, -0/+0some people are studying the wrong stuff. if your going to spend your day trying to figure that out, you should be slapped. go digg a well in africa or something. god dammmit why do people waiste so much money and time on useless stuff.
The matter surrounding the ice has a above freezing tempature. this causes the ice to match that tempature and thus melt due to it no longer being below the freezing point.
Hot *****, i did it. and i didnt even need a labcoat. - tribalsun, on 10/12/2007, -0/+0The only problem I see with that is they could not see the actual process to prove it so they created something that would mimic what they believe so it's still theory at best. Interesting article though as I never really put to much thought into how ice melts.
- MrZop, on 10/12/2007, -0/+0Sorry if it gets under you skin. but there are more important things in this world that scientists should be thinking of before stuff like that.
- fourcorners, on 10/12/2007, -0/+0I hate people that scoff at the scientific studies based on news articles. Its the writers job to suck you into the article. Take some initiative and find out the rest of the story. 'OMG!!! ICE CUBE THE RAPPER MELTING EVEN I R NOWING THE ANSWEAR TO TAT 1........ ROOFLES'
- fourcorners, on 10/12/2007, -0/+0Rereading what I posted, that might of come off as too harsh. Sorry, comments like MrZops get under my skin.
- scudco, on 10/12/2007, -0/+0Ice melts?! WTF!
- The_Sheriff, on 10/12/2007, -0/+0Well now that they know how it works, the scientists need to go the other way and get working on creating a beer that never gets cold...
- rohell, on 10/12/2007, -1/+0Are they getting paid for this?
- WackyT, on 10/12/2007, -2/+0Same as they've done with the creation of the universe and evolution. Why is it when your a scientist you can make stuff up and present it as a fact?
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