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From: Iain Chalmers on 15 Feb 2007 21:18 In article <C1FA8AC5.26F2B%hbaj2006(a)aapt.net.au>, Hammo <hbaj2006(a)aapt.net.au> wrote: > On 15/2/07 7:41 PM, in article > bigiain-976EC2.19410915022007(a)nasal.pacific.net.au, "Iain Chalmers" > <bigiain(a)mightymedia.com.au> wrote: > > > In article <AHUAh.1426$4c6.428(a)news-server.bigpond.net.au>, > > "Knobdoodle" <knobdoodle(a)hotmail.com> wrote: > > > >> "Peter Cremasco" <FirstName.LastName(a)bigpond.com> wrote in message > >> news:jk38t29gcr43dcheiaq60ver5gb1ad73am(a)4ax.com... > >>> On Tue, 13 Feb 2007 13:18:38 GMT, "Knobdoodle" <knobdoodle(a)hotmail.com> > >>> wrote: > >> > >>>> It also expands when cooled below zero! > >>>> [cue Twilight-Zone music] > >>> > >>> Below 4 degrees C, I think. > >>> --- > >> You're right; but I think it's negative 4. > > > > Nope, plus 4, thats why ice floats... > > Eh? Flotation is based on temperature? > > That makes no sense. You are, of course, completely right Hammo, as usual. The expansion of water as it drops below 4 degrees has absolutely nothing to do with why ice floats, I must have forgotten to factor in the efficiency of the cooling system, or the torque on the refrigerator compressor or some other completely irrelevant detail. Lets see: http://www.google.com/search?q=why+ice+floats Not a single one of the returns there says anything about temperature having anything to do with why ice floats, does it? You _are_ the same Hammo who claims to have a chemistry degree, right? big -- "Everything you love, everything meaningful with depth and history, all passionate authentic experiences will be appropriated, mishandled, watered down, cheapened, repackaged, marketed and sold to the people you hate." Mr Jalopy quoting Hooptyrides (on jalopyjunktown.com)
From: Iain Chalmers on 15 Feb 2007 21:24 In article <45d501cd$0$24697$5a62ac22(a)per-qv1-newsreader-01.iinet.net.au>, "Nev.." <idiot(a)mindless.com> wrote: > Ice doesn't float does it? Doesn't 90% of the mass of ice stay below > the water level? That would only make it buoyant, right? Errrmmm, earth to Nev, come in Nev... Does a boat "float"? Even though some percentage of is stays below the water level? big -- "Everything you love, everything meaningful with depth and history, all passionate authentic experiences will be appropriated, mishandled, watered down, cheapened, repackaged, marketed and sold to the people you hate." Mr Jalopy quoting Hooptyrides (on jalopyjunktown.com)
From: Nev.. on 15 Feb 2007 22:08 Iain Chalmers wrote: > In article > <45d501cd$0$24697$5a62ac22(a)per-qv1-newsreader-01.iinet.net.au>, > "Nev.." <idiot(a)mindless.com> wrote: > >> Ice doesn't float does it? Doesn't 90% of the mass of ice stay below >> the water level? That would only make it buoyant, right? > > Errrmmm, earth to Nev, come in Nev... > > Does a boat "float"? Even though some percentage of is stays below the > water level? Good question. I wonder how many boats have 90% of their mass below the waterline? For our practical experiment, lets turn them all upside down and find out whether they really do float or not. :) Nev.. '04 CBR1100XX
From: jlittler on 15 Feb 2007 22:16 On Feb 16, 1:18 pm, Iain Chalmers <bigi...(a)mightymedia.com.au> wrote: > In article <C1FA8AC5.26F2B%hbaj2...(a)aapt.net.au>, > > > > > > Hammo <hbaj2...(a)aapt.net.au> wrote: > > On 15/2/07 7:41 PM, in article > > bigiain-976EC2.19410915022...(a)nasal.pacific.net.au, "Iain Chalmers" > > <bigi...(a)mightymedia.com.au> wrote: > > > > In article <AHUAh.1426$4c6....(a)news-server.bigpond.net.au>, > > > "Knobdoodle" <knobdoo...(a)hotmail.com> wrote: > > > >> "Peter Cremasco" <FirstName.LastN...(a)bigpond.com> wrote in message > > >>news:jk38t29gcr43dcheiaq60ver5gb1ad73am(a)4ax.com... > > >>> On Tue, 13 Feb 2007 13:18:38 GMT, "Knobdoodle" <knobdoo...(a)hotmail.com> > > >>> wrote: > > > >>>> It also expands when cooled below zero! > > >>>> [cue Twilight-Zone music] > > > >>> Below 4 degrees C, I think. > > >>> --- > > >> You're right; but I think it's negative 4. > > > > Nope, plus 4, thats why ice floats... > > > Eh? Flotation is based on temperature? > > > That makes no sense. > > You are, of course, completely right Hammo, as usual. The expansion of > water as it drops below 4 degrees has absolutely nothing to do with why > ice floats, I must have forgotten to factor in the efficiency of the > cooling system, or the torque on the refrigerator compressor or some > other completely irrelevant detail. > > Lets see: > > http://www.google.com/search?q=why+ice+floats > > Not a single one of the returns there says anything about temperature > having anything to do with why ice floats, does it? > > You _are_ the same Hammo who claims to have a chemistry degree, right? > Errm in all fairness to the Hamfuscator, I read that statement as questioning the correlation between water temperature and ice floating. In other words I would say Hammo's > > Eh? Flotation is based on temperature? And your > Not a single one of the returns there says anything about temperature > having anything to do with why ice floats, does it? Are exactly the same in intent and meaning. Having said that - how do you differentiate between: "ice floats because it's less dense than water" and "the ice is less dense than water because it's colder and that affects the way the molecules interact" That's a serious question, I'm missing some subtlety here. JL
From: Smee R11S on 15 Feb 2007 22:31
Yeebok wrote: > > Either I'm missing you not missing how stupid I'm being or I'm stupider > than I think I am. That would make a great sigfile. |