Monday, March 21, 2011

Geopolymer

Geopolymer is a term covering a class of synthetic aluminosilicate materials with potential use in a number of areas, essentially as a replacement for Portland cement and for advanced high-tech composites and ceramic applications.

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Dobro

  Dobro is an American brand of resonator guitars owned by Gibson and manufactured by its subsidiary Epiphone . The term "dobro&quo...