Even though the core-formed industry dominated mirror manufacture in the Greek universe, casting techniques also enjoyed an important role in the advancement glass in the ninth to fourth centuries B. C. Cast glass was produced in two basic ways-through the lost-wax method and with various open and plunger molds. The most common method used by Roman glassmakers for most of the open-form cups and bowls in the first century B. C. was the Hellenistic technique of sagging tumbler (81. 10. 243) over the convex "former" mold. Nevertheless , various casting and reducing methods were continuously utilised as style and well-liked preference demanded. The Romans also adopted and quoted various color and design schemes from the Hellenistic decanter or glass traditions, applying such models as network glass and gold-band glass to innovative shapes and forms. Clearly Roman innovations in textile styles and colors include marbled mosaic glass, short-strip mosaic a glass, and the crisp, lathe-cut dating profiles of a new breed of great as monochrome and colorless tablewares of the early disposition, introduced around 20 A. D. This class of glassware became one of the most revered styles because it closely was similar to luxury items such as the extremely valued rock crystal items, Augustan Arretine ceramics (as 10. 210. 37), and bronze and silver tablewares (as 20. 49. 2-12) so favored by the noble and prosperous classes of Roman society. In fact , these types of fine wares were the sole glass objects continually created via casting, even up to the as Late Flavian, Trajanic, and Hadrianic periods (96-138 A. D. ), following glassblowing superceded casting as the dominant method of glasses manufacture in the early 1st century A. D. SOMETIMES AROUND 70 B. C., in Jerusalem, someone realized that, if you took a mug tube -- then the stock for mass production of beads -- sealed you end and blew into the other, you could create a flute bulb. Blow hard enough and long enough, and you could make a little bottle. This was glassblowing in its most primitive. It is quite possible that, without further refinement, this kind of moment of experimentation could have passed unnoticed. A couple of years later, however , the introduction of another blowpipe, together with a tool-kit of variously-sized pincers and paddles, made it possible to blow and shape cup with much greater control, and with much greater novelty.
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