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Martin,
        Im not quite sure what you mean by an ice core
in the exhibit, but there are several exhibits I know
of that use refrigeration units.

One is the ice wall in the Titanic exhibit.  It has a
separate refrigeration unit which is attached to a
metal sheet that has metal tubing welded to the
back of it.  It builds up around a 4 inch thick ice
sheet.

Another is the bubble freezer that I saw at the
Exploratorium several years ago.  It has a refrig.
unit in the base and which keeps around a 4 foot
clear cube (open top) cold so bubbles will freeze
as they float down into it.

David

David Taylor
AHHA Museum Services
  "Now I Understand"
    (206) 363-8126
   e-mail:   [log in to unmask]
http://www.AHHA-MuseumServices.com

From: Martin Weiss <[log in to unmask]>
Reply-To: Informal Science Education Network
Date: Wed, 12 Nov 2003 15:36:06 -0500
Subject: ice core exhibit

        Has anyone seen or built an exhibit containing an ice core? I
am interested in the nuts and bolts (especially refrigeration and
anti-fogging).

Cheers,

Martin Weiss, PhD
Director of Science
New York Hall of Science


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