GLASSBLOWING Obsidian, a black volcanic glass, is probably the best known of the naturally occurring glasses. It was used by early man to form cutting tools, arrowheads and spearheads and is now used by modern man to make the sharpest surgical blades. Synthetic glass was originally prepared by heating a mixture of sodium oxide (or

What is it? Scientific Glassblowing is the process of creating glass apparatus and glass systems used in research and production. Where is it found? Scientific glassware is found in many government, educational and industrial laboratories. Chemical, medical, pharmaceutical and engineering laboratories use scientific glassware extensively, and almost all areas of scientific research will use glass at some

People had used naturally occurring glass, especially obsidian (the volcanic glass) before they learned how to make glass. Obsidian was used for production of knives, arrowheads, jewelry and money. The ancient Roman historian Pliny suggested that Phoenician merchants had made the first glass in the region of Syria around 5000BC. But according to the archaeological evidence, the

Glassblowing, the practice of shaping a mass of glass that has been softened by heat by blowing air into it through a tube. Glassblowing was invented by Syrian craftsmen in the area of Sidon, Aleppo, Hama, and Palmyra in the 1st century BC, where blown vessels for everyday and luxury use were produced commercially and exported to all parts of the Roman

Glass is a state of matter. It is a solid produced by cooling molten material so that the internal arrangement of atoms, or molecules, remains in a random or disordered state, similar to the arrangement in a liquid. Such a solid is said to be amorphous or glassy. Ordinary solids, by contrast, have regular crystalline structures. The

Glassware is found in abundance in laboratories and comes in all shapes and sizes. Though it has become preferable in recent years to substitute glass vessels for cheaper, more durable, and less fragile plastic materials, some substances and experiments or applications still require the use of glassware. The reasons for these are manifold. Firstly, glass

The practice of blowing glass may seem hip and modern if you’ve recently hit up an art exhibition by Dale Chihuly or Harvey Littleton, but the technique of glassblowing has actually been around since antiquity. Although not as old as simpler methods like bead making or cutting and carving shapes from larger pieces of glass, glassblowing has