Search results
Results from the WOW.Com Content Network
move to sidebar hide. From Wikipedia, the free encyclopedia
Hedwig glasses or Hedwig beakers are a type of glass beaker originating in the Middle East or Norman Sicily and dating from the 10th-12th centuries AD. They are named after the Silesian princess Saint Hedwig (1174–1245), to whom three of them are traditionally said to have belonged. [1] So far, a total of 14 complete glasses are known. [2]
(B) A tall-form or Berzelius beaker (C) A flat beaker or crystallizer Philips beaker which can be swirled like a conical flask. Standard or "low-form" (A) beakers typically have a height about 1.4 times the diameter. [3] The common low form with a spout was devised by John Joseph Griffin and is therefore sometimes called a Griffin beaker.
Beaker (drinkware), a beverage container; Beaker (laboratory equipment), a glass container used for holding liquids in a laboratory setting; Beaker (archaeology), a prehistoric drinking vessel; Beaker culture, the archaeological culture often called the Beaker people; Sippy cup, referred to as a beaker in UK English
Beaker made using the ‘Zwischengoldglas’ technique, mid 18th century V&A Museum no. 1271-1872. Zwischengoldglas, (German "gold between glass", plural Zwischengoldgläser) is a type of decorated glassware in which a design in gold leaf is created on a glass vessel, then sealed under another precisely-fitting glass vessel, which is then bonded to the first piece with cement.
A Fleaker is a brand of container for liquids used in the laboratory. It can be described as a cross between the Griffin beaker and the Erlenmeyer flask. [1]Like a beaker, the bottom is flat, with the sides meeting the bottom at a 90-degree angle.
A cage cup, also vas diatretum, plural diatreta, or "reticulated cup" is a type of luxury late Roman glass vessel, found from roughly the 4th century, and "the pinnacle of Roman achievements in glass-making". [1] Diatreta consist of an inner beaker and an outer cage or shell of decoration that stands out from the body of the cup, to which it is ...
Opacity in glass can be due to a number of factors; intensity of colour, bubbles in the glass or the inclusion of opacifying agents, such as tin (SnO 2 & PbSnO 3) and antimony (Ca 2 Sb 2 O 7 & CaSb 2 O 6 & Pb 2 Sb 2 O 7). [12] [11] The main type of glass found in the Anglo-Saxon period is a soda-lime-silica glass, continuing the Roman tradition ...