LinkBack URL
About LinkBacksHoooray, it's Pimms o'clock! (at 11am, ah well...)Originally Posted by Nick
Mike, ta!
Iranu, ta!
Everyone else, ta!
Pimms is now served!
Hoooray, it's Pimms o'clock! (at 11am, ah well...)Mike, ta!
Iranu, ta!
Everyone else, ta!
Pimms is now served!
I've read little of this, first page sounds technical.
*walks of to get some air*
Last edited by SilentDeath; 19-07-2005 at 03:46 PM.
Taken from links in my previous post. Don't see why they should lie.
The question now is "whats the optimum number of icecubes to put in a pint of Pimms assuming that you have a cocktail stick with mint, orange, lemon, cherry and cucumber in it and the outside temperature is 88°F."
"Reality is what it is, not what you want it to be." Frank Zappa. ----------- "The invisible and the non-existent look very much alike." Huang Po.----------- "A drowsy line of wasted time bathes my open mind", - Ride.
So what is the line on the graph representing? The rate of change of temperature?
This is getting sillier by the minute... bet you someone has done a PhD based around something similar to this LOL
See, told you, the hotter water freezes firstUnless of course you freeze the colder water at a starting temp of 0.000001 celsius.
To err is human. To really foul things up ... you need a computer.
Well, the height of the line represents temperature and the x axis represents time. I don't think it is silly - it's actually rather fascinating!
"Well, there was your Uncle Tiberius who died wrapped in cabbage leaves but we assumed that was a freak accident."
As a Chemist, i'd go with the same. As has been said, although water EXPANDS when in the solid phase, it floats ever so slightly above the surface. So the volume that's under the water is the volume of water in the ice AFTER it's melted. Hence the water stays at the same level.
I can just imagine everyone going into the kitchen to try this out now lol
Also remember, you have to have a low enough temperature as to not allow *too* much of the water to evaporate, but not so cold that the water has a lower density than 1g/cm.
That is a really freaky effect, will have to discuss it with my stat mech proffessor next time i see him. Do you know if its just water? Cos its slightly less weird if it is just water and not all fluids.
water is the only sibstance whose solid is less dense than its liquid
I doubt it's been tried with any other liquid, however, things like softdrinks etc (water + sugar) or salt water would prbably have been tested for their effects, as sugar and salt would probably cause some sort of varying effect. Dunno what it is tho, not all that fussed
Nope, Gallium does this, and Gallium Arsenide, and probably other compounds of Gallium too...water is the only sibstance whose solid is less dense than its liquid
Last edited by schmunk; 19-07-2005 at 11:59 PM.
I was meaning the cooling faster thing, but as schmunk pointed out there are other things that exhibit that kind of behaivour.water is the only sibstance whose solid is less dense than its liquid
Yes what I was asking was what the line of the graph represented... not what x and y axis values were
To be honest I cant understand why you need that grpah as that is with respect to the rate of change of temperature, not any expansion or the height of water?? Although it is fascinating to see that water with a higher temperature freezes at a faster rate than colder but surely that has something to do with the difference in specific heats at each temperature?
Last edited by chriswood_7; 20-07-2005 at 12:03 PM.
The novel thing about it is that even though they are on the same line at 3.5 k ish, the history of the sample affects its behaivour. I wish i still had my data logger, id have to do this experiment on an agitated sample, water is freaky and weird.
Basically weve completely jacked the thread, my apoligies to the OP
Yeah I understand what you mean, it is quite interesting.. I agree that water is a unique substance to mankind with many great things about it.
Im no physicist but I do have some background of water/steam during my Automotive Engineering degree.. and there is many things I dont know about water but I do beleive that the water level will stay the same.
No, no, it's fine... I'm just amused that this all stems from me overfilling a glass of Pimms and us then discussing wheter it would overflow when the ice melted...
There are currently 1 users browsing this thread. (0 members and 1 guests)
Posting Permissions
Reply With Quote
