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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 ...
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.
Leaders in the glassmaking industry described the employment of children, some as young as 10 years old, as essential for certain tasks—and they were cheap labor. [95] About 20 to 45 percent of laborers at glass factories were children, and some were aged eight to twelve. They typically moved items, cleaned, and helped with the annealing process.
AN6531 sunglasses with Type 1 AN6531 lenses made by American Optical. In the second half of the 1930s and early 1940s, a group of American firms kept developing sunglasses. The military "flying sun glasses (comfort cable)" were standardized in November 1941. They were produced in large quantities (several million pieces) for pilots and sailors.
They were also easier to adjust when flawed -- glass eyes could not be altered once they had hardened. M&G has loyal customers who have returned over the course of several decades and multiple generations -- like 65-year-old Laurine Cummings, who first came to the Gougelmanns in 1984 after losing her eye to choroidal melanoma at the age of 33.
Anton Chekhov with pince-nez, 1903. Pince-nez (/ ˈ p ɑː n s n eɪ / or / ˈ p ɪ n s n eɪ /, plural form same as singular; [1] French pronunciation:) is a style of glasses, popular in the late 19th and early 20th centuries, that are supported without earpieces, by pinching the bridge of the nose.
Image credits: windexfresh #5. I took out salary continuance insurance until I was 65 instead of just the 2 years I was originally thinking. I was only 35 when I did that.