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<o:Author>KEVIN FREELS</o:Author>
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<DIV><SPAN class=698371817-29092004><FONT face=Arial color=#0000ff size=2>One
use is in 3D lithoprinting where you need to support disconnected parts of an
object. Typically this is done by leaving unsintered powder (which has to be
cleaned out), building struts that are then removed, or using some sort of wax
that is melted out after the fact. The cleaning process is in fact a big
portion of the time and cost for JIT manufacturing of objects. These new
materials don't require melting out as they liquify when they cool and can be
rinsed clean with water.</FONT></SPAN></DIV>
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<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
extropy-chat-bounces@lists.extropy.org
[mailto:extropy-chat-bounces@lists.extropy.org] <B>On Behalf Of </B>Kevin
Freels<BR><B>Sent:</B> Monday, 27 September, 2004 09:48<BR><B>To:</B> ExI chat
list<BR><B>Subject:</B> [extropy-chat] A liquid that freezes when
heated<BR><BR></FONT></DIV>
<DIV>It freezes when heated, and when cooled, melts. Pretty neat.</DIV>
<DIV> </DIV>
<DIV><A
href="http://physicsweb.org/articles/news/8/9/15">http://physicsweb.org/articles/news/8/9/15</A></DIV>
<DIV> </DIV>
<DIV>Any ideas on it's usefulness?</DIV>
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