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From: Boxer on 15 Feb 2007 22:43 "Nev.." <idiot(a)mindless.com> wrote in message news:45d5202b$0$24695$5a62ac22(a)per-qv1-newsreader-01.iinet.net.au... > 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 A submarine is buoyant whilst being totally submerged. Boxer
From: Iain Chalmers on 15 Feb 2007 23:15 In article <45d5202b$0$24695$5a62ac22(a)per-qv1-newsreader-01.iinet.net.au>, "Nev.." <idiot(a)mindless.com> wrote: > 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? Oh, I see, it's a matter of degree is it? So what percentage of an object do you claim needs to stay above the water to qualify as "floating"? Perhaps only blimps and air-ships actually "float" in Nev-land since they manage to keep 100% of their mass out of the water? :-) 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: Theo Bekkers on 16 Feb 2007 00:08 Iain Chalmers wrote: > Perhaps only blimps and air-ships actually "float" in Nev-land since > they manage to keep 100% of their mass out of the water? :-) Nah, they're buoyant in the atmosphere. Theo
From: paulh on 16 Feb 2007 00:37 On Fri, 16 Feb 2007 14:08:13 +1100, "Nev.." <idiot(a)mindless.com> wrote: >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? What relevance does that have? > For our practical experiment, lets turn them all upside down >and find out whether they really do float or not. :) They would until they filled with water. Things either float or sink.. ice floats... paulh
From: Yeebok on 16 Feb 2007 02:10
Theo Bekkers wrote: > Hammo wrote: >> "Theo Bekkers" wrote: > >>> By that definition nothing floats Nev. [1] Pretty much everthing has >>> to displace some water to stay on the surface. > >> [1] surface tension, be gone..... > > Hence the qualifier. I would wager that even a mosquito standing on the > surface tension of a pond is displacing some water even though no part of > the mosquito is below the surface. > > Theo > > Yes definitely - its feet make indentations in the 'surface' formed by surface tension. This goes back to the headlights and fuel question tho ... is it measurable or too small to worry about ? |