)are made by heating sand silica until it melts into a liquid state. the melted glass can then either be shaped by ) the liquid glass or by pouring the melted glass into a mold. the shape and size of the finished piece depends on the tools and method used by the artist.

Glass crafts are made by heating sand silica until it melts into a liquid state. The melted glass can then either be shaped by blowing the liquid glass or by pouring the melted glass into a mold. The shape and size of the finished piece depend on the tools and method used by the artist. 

Answer rodger sherman

The most basic method for controlling horizontal sway is to simply tighten up the structure. at the point where the horizontal girders attach to the vertical column, the construction crew bolts and welds them on the top and bottom, as well as the side. this makes the entire steel super structure move more as one unit, like a pole, as opposed to a flexible skeleton.