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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.
Katharine Burr Blodgett (January 10, 1898 – October 12, 1979) [2] was an American physicist and chemist known for her work on surface chemistry, in particular her invention of "invisible" or nonreflective glass while working at General Electric.
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 ...
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 for eyewear innovation in the Western world. Upon the release of the printing press and the mass ...
A postage meter imprints an amount of postage, functioning as a postage stamp, a cancellation and a dated postmark all in one. The postage meter was invented by Chicago inventor Arthur Pitney, receiving a patent for the invention on October 14, 1902. [87] 1902 Teddy bear. A teddy bear is a stuffed toy bear.
Hermann Hammesfahr (February 20, 1845 – November 23, 1914) was a Prussian-American inventor who invented a type of fiberglass cloth in which glass was interwoven with silk. He was awarded the patent by the United States Patent Office in 1880.
Barge glass works: Jacob Barge began producing glass in 1760 in the Province of Pennsylvania. [116] The works was located in Bucks County close to Philadelphia. Archeological evidence indicates that window glass was made using the cylinder method. Various types of bottles were also made. The glass works appears to have operated through 1784. [117]
The University of Chicago Clinics and Clinical Departments, 1927–1952: A Brief Outline of the Origins, the Formative Years, and the Present State of Medicine at the University of Chicago (1952). Vermeulen, Cornelius W. For the Greatest Good to the Largest Number: A History of the Medical Center, the University of Chicago, 1927–1977 (1977).