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A comment on Zeolite retains heat indefinitely, absorbs 4x more heat than water. Parent comment

Re:Zeolite retains heat indefinitely, absorbs 4x more heat t... by excuse-me on Wednesday June 06, 2012 @06:53PM (#4076617)
The stuff is fragile (or at least the 5nm molecular sieve type)- if you shake it too much you make dust which blocks the pores
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