Ice cubes freeze from the outside in. Thus initially there is a shell of ice surrounding water at 32F. As the freezing continues from the outside in, the water expands as it freezes. But since it is inside the cube, pressure builds up until the ice cracks at the top, and water will then flow out the crack onto the top and freeze. An opening will therefore form, allowing the water forced out because of the expansion to continue flowing onto the top, creating a stalagmite (it is not a stalactite) pointing up. When the freezing is finally complete, the water in the opening freezes as well, so you will not find any hole.
Marshall "James Osbourne, Holmes" wrote: > Hi John, > > Have you ever noticed that sometimes DW, when frozen in ice-cube trays in a > regular freezer at about 0 to plus 10 F, will make little stalactite like > points, not always straight but slightly curved, in the range of one quarter > to one half inch in length. I have always been curious about that behavior. > > James-Osbourne: Holmes > > -----Original Message----- > From: John A. Stanley [mailto:[email protected]] > Sent: Wednesday, July 24, 2002 9:54 AM > To: [email protected] > Subject: Re: CS>Distilled verses filtered/ drinking > > In article <00c901c23256$99c891b0$14000...@vaio>, > "akaJhon" <[email protected]> wrote: > > What are your opinions and or facts, concerning drinking = > >water,,distilled etc ?? > > > >this site concerns that.. > > > >http://www.mercola.com/2002/may/8/distilled_water.htm > > That site looks more to me like New Age religion than science. Distilled > water highly acidic? I'd always read that DW is usually pH neutral. > > And, why would water's behavior when frozen be an indication of superior > health qualities when ingested as a liquid by warm-blooded organisms > that will not freeze as long as they're alive? If I recall correctly, > the formation of beautiful ice crystals is simply an indication that > there are nuclei around which they can form; how is that an indication > that it is more healthy to drink? > > If flashy freezing behaviors are an indication of healthy drinking > water, then I offer this evidence that distilled water is healthy: > The temperature of DW can be lowered below 0 deg C while remaining in a > liquid state. If the vessel holding the DW is then jiggled, the DW will > instantly freeze solid and the temperature shoot up to 0 deg C. We did > this experiment in a freshman prep school science class, and it was way > kewl to watch. > > Supercooled = Super Healthy! Hey, why not? :) > > -- > John A. Stanley [email protected] > > -- > The silver-list is a moderated forum for discussion of colloidal silver. > > Instructions for unsubscribing may be found at: http://silverlist.org > > To post, address your message to: [email protected] > > Silver-list archive: http://escribe.com/health/thesilverlist/index.html > > List maintainer: Mike Devour <[email protected]>
