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Photosensitive glass is a clear glass in which microscopic metallic particles can be formed into a picture or image by exposure to short wave radiations such as ultraviolet light. Photosensitive glass was invented in November 1937 by S. Donald Stookey of Corning Glass Works. [275] 1937 Digital computer
Stars made of glow-in-the-dark plastic are placed on walls, ceilings, or hanging from strings make a room look like the night sky. [29] Other objects like figurines, cups, posters, [30] lamp fixtures, toys [31] and bracelet beads may also glow. [32] Using blacklights makes these things glow brightly, common at raves, bedrooms, theme parks, and ...
Taking this one stage further, the clue word can hint at the word or words to be abbreviated rather than giving the word itself. For example: "About" for C or CA (for "circa"), or RE. "Say" for EG, used to mean "for example". More obscure clue words of this variety include: "Model" for T, referring to the Model T.
Another common clue type is the "hidden clue" or "container", where the answer is hidden in the text of the clue itself. For example, "Made a dug-out, buried, and passed away (4)" is solved by DEAD. The answer is written in the clue: "maDE A Dug-out". "Buried" indicates that the answer is embedded within the clue.
Glass-paste cloisonné was made in the same periods with similar results – compare the gold Anglo-Saxon fitting with garnets (right) and the Visigothic brooch with glass-paste in the gallery. [12] Thick ribbons of gold were soldered to the base of the sunken area to be decorated to make the compartments, before adding the stones or paste.
Roman gold glass beads were made by using an inner tube or rod to which the gold leaf was stuck. A larger tube was slid over that and the beads crimped off. Easily transported and very attractive, Roman gold glass beads have been found as far outside the Empire as the Wari-Bateshwar ruins in Bangladesh, and sites in China, Korea, Thailand and ...
A substantial proportion of the gold is "invisible gold" incorporated into the pyrite (see Carlin-type gold deposit). It has been suggested that the presence of both gold and arsenic is a case of coupled substitution but as of 1997 the chemical state of the gold remained controversial. [15]
Absinthe glass, a short, thick-stemmed glass with a tall, wide bowl and some feature (like a ridge, bead, or bulge) indicating a correct serving of absinthe. Chalice or goblet, an ornate stem glass, especially one for ceremonial purposes. Champagne coupe, a stem glass with a wide, shallow bowl, for champagne (similar to a cocktail glass).