Pykrete is a composite mixture of approximatly 14% wood pulp/saw dust to 86% ice (by weight). Once mixed and frozen a very light yet strong material is created.  Pykrete takes a long time (in respect to regular ice) to melt and has been known to be bullet resistant. Tests made by some users of a 50/50 mix produced some very interesting results although no exact scientific measurements were found to compare various mixes of Pykrete and compare against various woods, ice, concrete, metal, etc... See below for some images and further reading: http://mythbustersresults.com/episode-116-alaska-special-2 - Well, Mythbusters - they rock! http://www.simegen.com/writers/lois/pykrete.htm - Some excellent pictures http://en.wikipedia.org/wiki/Pykrete - A lot of background historical information |
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Pykrete |