Search results
Results From The WOW.Com Content Network
The history of glass-making dates back to at least 3,600 years ago in Mesopotamia. However, most writers claim that they may have been producing copies of glass objects from Egypt. [1] Other archaeological evidence suggests that the first true glass was made in coastal north Syria, Mesopotamia or Egypt. [2]
Potash glass is a glass that uses potash or K 2 O as a flux in order to decrease the melting point of the glass and is the most common type of glass found in SE Asia. [ 22 ] Detailed compositional data recently summarised by (Lankton, & Dussubieux 2006) has uncovered several distinct and yet contemporaneous glass technologies across the Indian ...
Pages in category "History of glass" The following 89 pages are in this category, out of 89 total. ... 19th century glass categories in the United States;
However, glass was being produced in Roman contexts using primarily Hellenistic techniques and styles (see glass, history) by the late Republican period. The majority of manufacturing techniques were time-consuming, and the initial product was a thick-walled vessel which required considerable finishing.
Glass was not pressed in the United States until the 1820s. [8] Until the 20th century, window glass production involved blowing a cylinder and flattening it. [9] Two major methods to make window glass, the crown method and the cylinder method, were used until the process was changed much later in the 1920s. [10]
The production of beads from imported glass shards, cullet (scraps) and undesired glass beads has a lively presence in the history of Sub-Saharan Africa. Imported glass was either formed by melting such imported glass, potentially adding desired colorants, and then shaping the melt into a bead form; or, by grinding down the imported glass to ...
There may be around forty glass items made by Ravenscroft using his new lead recipe, but less than twenty with the raven's seal. The addition of lead oxide to the raw ingredients of glass resulted in a melted mixture that had a lower viscosity than ordinary glass, [2] which had the advantage of being less likely to contain air bubbles. This ...
Claw beaker from an Anglo-Saxon site.. Anglo-Saxon glass has been found across England during archaeological excavations of both settlement and cemetery sites. Glass in the Anglo-Saxon period was used in the manufacture of a range of objects including vessels, beads, windows and was even used in jewellery. [1]