Glass; is a material that has long been a great part of people's daily life. Glass is obtained by mixing with silica sand pot or soda and melting it in high temperature. Hard, transparent, easy to break, based on chemical events, waterproof material. There are two kinds of glass: a) natural glass, b) artificial glass. Before people learn how to make artificial glass, many objects form beforehand by forming their shapes with glass. They brought. The most notable of these natural glasses is the so-called obsidiyen, a dark, cama-like stiff stone from the volcano. They are usually semi-transparent, transparent, and have one. From these, arrows, spearheads, knives and we were made in Stone Age. In more advanced civilizations, mirrors were used as ornaments.

Glass Tables Can Be Dangerous!