February 27, 2010
by Mr. Vine
Minerals is the naturally occurring inorganic solids, which posses a definite internal structure and specific chemical composition. Rocks (igneous, metamorphic, and sedimentary) consist of one or more minerals (e.g. mineral: calcite; rock: limestone). There are [Read further...]
February 24, 2010
by Mr. Vine
Hallo again from me, Mr. Vine… I’m quite busy during this few days…fuhh! OK, in this today’s episode I would like to introduce to you the typical sections of building structural. In my presentation, I [Read further...]