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#11
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If ice did not float it would be a far colder planet.
"dixon" wrote in message news:3u2kd.76623$R05.15860@attbi_s53... A physics teacher once asked what would happen if water, when freezing into ice, became smaller as it got colder like all other materials. At the time it seemed simple, the ice wouldn't expand so no more cracked engine blocks and manifolds. Also docks wouldn't be lifted in winter and boats could probably be left in the water all winter. Other than that, not much change right? The answer was surprising! What do you think? Dixon |
#12
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On Wed, 10 Nov 2004 08:25:10 +1100, "K. Smith"
wrote: dixon wrote: A physics teacher once asked what would happen if water, when freezing into ice, became smaller as it got colder like all other materials. At the time it seemed simple, the ice wouldn't expand so no more cracked engine blocks and manifolds. Also docks wouldn't be lifted in winter and boats could probably be left in the water all winter. Other than that, not much change right? The answer was surprising! What do you think? Dixon It only expands because as the water freezes it does so as lots of tiny ice crystals, there is some space (small) between these crystals. Change of state from a chemically homogeneous liquid (H2O) to a tightly packed lump of solid (ice) crystals So a kg of ice has a larger volume than a kg of liquid water, that's why it floats. Whenever water freezes the ice crystals no matter how tightly packed have to take up more volume than the water did & oops the cast iron engine block just can't accommodate a volume increase of say 5-10%. That dumb uneducated lying idiot Krause has for years argued here that a timber boat of the same weight as boat of any other materials, will "float" higher in the water because... wait for it....wait....... wood floats!!!:-) K Hey! Didn't you read about the truce? This is becoming a peaceful and harmonious group. There are still a few who haven't gotten the word, but they're working on it! John H On the 'PocoLoco' out of Deale, MD, on the beautiful Chesapeake Bay! |
#13
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On Tue, 09 Nov 2004 21:47:20 GMT, "dixon"
wrote: A physics teacher once asked what would happen if water, when freezing into ice, became smaller as it got colder like all other materials. At the time it seemed simple, the ice wouldn't expand so no more cracked engine blocks and manifolds. Also docks wouldn't be lifted in winter and boats could probably be left in the water all winter. Other than that, not much change right? The answer was surprising! What do you think? Dixon Well, among other things, ice would sink. The end result could be, no more northern lakes, as the ice would fill them, and only the top layer would thaw. Kind of a reverse turn over only permanent. Interesting. Later, Tom The way I was told the ice wouldn't form at the surface and thus insulate the water below from freezing. Oceans and lakes would freeze from bottom up due to the denser ice sinking. The ice caps would grow larger. Lakes wouldn't completely thaw in summer. The growing area of ice would reflect sunlight, further cooling the earth to a point where the planet would be uninhabitable. All water would soon be ice. I'll admit there may be holes in the theory somewhere though. Makes sense. Later, Tom |
#14
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JohnH wrote:
On Wed, 10 Nov 2004 08:25:10 +1100, "K. Smith" wrote: dixon wrote: A physics teacher once asked what would happen if water, when freezing into ice, became smaller as it got colder like all other materials. At the time it seemed simple, the ice wouldn't expand so no more cracked engine blocks and manifolds. Also docks wouldn't be lifted in winter and boats could probably be left in the water all winter. Other than that, not much change right? The answer was surprising! What do you think? Dixon It only expands because as the water freezes it does so as lots of tiny ice crystals, there is some space (small) between these crystals. Change of state from a chemically homogeneous liquid (H2O) to a tightly packed lump of solid (ice) crystals So a kg of ice has a larger volume than a kg of liquid water, that's why it floats. Whenever water freezes the ice crystals no matter how tightly packed have to take up more volume than the water did & oops the cast iron engine block just can't accommodate a volume increase of say 5-10%. That dumb uneducated lying idiot Krause has for years argued here that a timber boat of the same weight as boat of any other materials, will "float" higher in the water because... wait for it....wait....... wood floats!!!:-) K Hey! Didn't you read about the truce? This is becoming a peaceful and harmonious group. There are still a few who haven't gotten the word, but they're working on it! John H On the 'PocoLoco' out of Deale, MD, on the beautiful Chesapeake Bay! Yes I read John:-) Sorry but Harry has done this before too, he'll still & has even since then, started OT threads & he'll continue his abuse. It suits him right now John, after the election postings etc, I best tell you there's been a slight change???? some of the "anon" news access points have recently been closed (cut off by proper news servers more accurately), they along with the X no archive yes headers, were mainly used by the mentally ill, apparently doctors & law enforcement people were using their behaviour in NGs as evidence:-) Needless to say the liar Krause was a user of such devices not withstanding his protests to the contrary (he would wouldn't he? he's a liar:-)). So now he has to tone it down because he's stuck using the public news servers again & I would have great pleasure I can assure you in having him chucked from them one after the other. I see it as electronic stoning which is probably too good for him:-) I have been in OT posts & it's rare (very rare?) that I'll start one (although I admit to same on occasion:-)), if that's your concern be assured I'll not be starting any OT threads while your truce is in play, however I reserve all my rights & remedies as regards the lying grub Krause. Sorry if this upsets you John because I think you do a sterling job of standing up to Krause's socialist simpleton tribe & I count you as one of the NG bricks, keep up the good work & don't get conned by him...... again:-) K |
#15
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Harry Krause wrote:
Harry Krause wrote: K. Smith wrote: That dumb uneducated lying idiot Krause has for years argued here that a timber boat of the same weight as boat of any other materials, will "float" higher in the water because... wait for it....wait....... wood floats!!!:-) Sorry, babe, but that sweet approach isn't going to work, either. You'll have to stuck to diddling yourself with that Louisville Slugger and five-gallon jug of K-Y. Er, stick. Mo' betta' Thanks for the correction creepy krause I hadn't fully got the message first time:-) K |
#16
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![]() "dixon" wrote in message news:3u2kd.76623$R05.15860@attbi_s53... A physics teacher once asked what would happen if water, when freezing into ice, became smaller as it got colder like all other materials. At the time it seemed simple, the ice wouldn't expand so no more cracked engine blocks and manifolds. Also docks wouldn't be lifted in winter and boats could probably be left in the water all winter. Other than that, not much change right? The answer was surprising! What do you think? Dixon There would be no life on earth so boats wouldn't be significant. Every body of water including the oceans would be frozen all the way to the bottom, perhaps thawing a thin layer on the top during the warm weather. del cecchi |
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