History Original of glass cup

Already a glass or cup plain We Use In Everyday Tools
Should We Also Knowing Origin of this glass cup
According to sources who in May of this is the History of Glass Simple Start to use.

Origin of glass initially, as obsidia, has been used since the stone age. Making the first glass direkodkan in Egypt around 2000 Before Masihi where glass is used as a coating for barangan pottery and others. In the first century Before Masihi glass blowing technique has evolved and become more commonly used glass. When times Empayar Rom are many forms of glass were created mostly in the manufacture of bottles and tubs.

So the 12th-century glass color (where the glass with mixed metal oxides as a dye) is not used extensively.

Glass-making center in the 14th century was Venice which promote many new techniques and become an important source of exports in dish bowls, mirrors, and other luxurious materials. Gradually sebahagian barangan glass makers moved to northern Europe and glass making techniques also grow with them.

Used so that the mid-1800s was the Crown glass process "Crown glass process", in which the glass blower plays a budget of 9 pounds of glass on the rod tip so that the glass forming cakera shallow and wide as 5 feet in diameter. Cakera glass will be cut into pieces. Glass made in Venice is very appreciated among the 10th century so that the 14th century they kerana merahsiakan process of making glass. Around 1688, the use of reference are developed, which causes the glass barangan more easily made. Custom barangan glass-forming machine in 1827 made the barangan glass made in lump and cheap.