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It has been proposed that glass eye covers in hieroglyphs from the Old Kingdom of Egypt (c. 2686–2181 BCE) were functional simple glass meniscus lenses. [40] The so-called Nimrud lens, a rock crystal artifact dated to the 7th century BCE, might have been used as a magnifying glass, although it could have simply been a decoration. [41] [42 ...
Man with glasses. A woman with glasses. Glasses, also known as eyeglasses or spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces, that rest over the ears for support.
The first incarnations of glasses were made with the aim of providing aid to reading. [ 8 ] Though innovations in pre-modern eyewear technology occurred in both Imperial China and the Inuit territories, which both invented early forms of sunglasses and goggles, [ 9 ] Venice and Northern Italy have historically been the place of consolidation ...
The first Persian glass comes in the form of beads dating to the late Bronze Age (1600 BCE), and was discovered during the explorations of Dinkhah Tepe in Iranian by Charles Burney. Glass tubes were discovered by French archaeologists at Chogha Zanbil, belonging to the middle Elamite period.
In the 1790s, the O'Hara and Craig glass works was the first glass works in Pittsburgh, and this works was another early user of coal as a fuel for its furnaces. [67] By 1800, it is thought that roughly ten glass works were operating in the United States. [68] Challenges for American glass works revolved around labor, raw materials, and imports.
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The warning came after Vaughn’s first few attempts. Calling 911, police informed him, was for emergencies only. But the warning went in one ear and out the other — as Vaughn allegedly kept ...
Pressed glass is patterned only on the exterior and smooth inside. [26] Pressed glass, termed “mold-pressed,” has an interior form independent of the exterior, in contrast to mold-blown glass, whose interior corresponds to the outer form. [27] Plates, lamp bases and door knobs were usually made of pressed glass. [28]