next message in archive
next message in thread
previous message in archive
Index of Subjects
This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C856DF.9318A220 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I have a question about the properties of water as it goes through the = transition from liquid to solid. Yesterday, following the heavy rains and mild temperatures, our stable = yard was quite a mucky mess. It was easy to sink well past one's ankles = in mud. This morning when I went out, the ground was not frozen, but it = was certainly much more solid to walk over. When I went out this morning, the temperature was +2.3C. The overnight = low was +1.8C. There were still pools of water in the footprints (and hoofprints) made = in yesterday's muck, so the ground certainly wasn't frozen, and there = was certainly enough water around to make it every bit as mucky as the = day before. So the question is, does water begin to "harden" before it actually = becomes ice? I understand that the activity (of the molecules?) slows = as the temperature drops, but when I stick my hand into cold water (say = water just above freezing), it feels every bit as liquid as when I put = my hand into lukewarm water. If there is a "hardening" process before = forming ice, does it happen in a very narrow band of temperature just = above the freezing point? I've tried to find an answer to this burning question on the internet. I = found several sites that talked about super cooled water and the way the = molecules line up in different ways in liquid water and ice, but nothing = that explained why water that should still be liquid appears to be more = solid, but not frozen, as the temperature drops to near freezing. Thanks, Andy Moir Freeport=20 ------=_NextPart_000_0006_01C856DF.9318A220 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.6000.16587" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>I have a question about the properties = of water as=20 it goes through the transition from liquid to solid.</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Yesterday, following the heavy rains = and mild=20 temperatures, our stable yard was quite a mucky mess. It was easy = to sink=20 well past one's ankles in mud. This morning when I went out, the = ground=20 was not frozen, but it was certainly much more solid to walk = over.</FONT></DIV> <DIV><FONT face=3DArial size=3D2>When I went out this morning, the = temperature was=20 +2.3C. The overnight low was +1.8C.</FONT></DIV> <DIV><FONT face=3DArial size=3D2>There were still pools of water in the = footprints=20 (and hoofprints) made in yesterday's muck, so the ground certainly = wasn't=20 frozen, and there was certainly enough water around to make it every bit = as=20 mucky as the day before.</FONT></DIV> <DIV><FONT face=3DArial size=3D2>So the question is, does water begin to = "harden"=20 before it actually becomes ice? I understand that the activity (of = the=20 molecules?) slows as the temperature drops, but when I stick my hand = into cold=20 water (say water just above freezing), it feels every bit as liquid as = when I=20 put my hand into lukewarm water. If there is a "hardening" process = before=20 forming ice, does it happen in a very narrow band of temperature just = above the=20 freezing point?</FONT></DIV> <DIV><FONT face=3DArial size=3D2>I've tried to find an answer = to this=20 burning question on the internet. I found several sites that talked = about super=20 cooled water and the way the molecules line up in different ways in = liquid=20 water and ice, but nothing that explained why water that should still be = liquid=20 appears to be more solid, but not frozen, as the temperature drops to=20 near freezing.</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Thanks,</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Andy Moir</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Freeport</FONT> </DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV></BODY></HTML> ------=_NextPart_000_0006_01C856DF.9318A220--
next message in archive
next message in thread
previous message in archive
Index of Subjects