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Otto Wichterle ( Czech pronunciation: [ˈoto ˈvɪxtr̩lɛ]; 27 October 1913 – 18 August 1998) was a Czech chemist, best known for his invention of modern soft contact lenses. [ 1] Wichterle is the author or co-author of approximately 180 patents and over 200 publications. The studies and independent books covered various aspects of organic ...
A pair of contact lenses, positioned with the concave side facing upward. Putting contacts in and taking them out. One-day disposable contact lenses with blue handling tint in blister-pack packaging. Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used ...
Polarography was invented by Jaroslav Heyrovský in 1922. [ 6] Cabin motorcycle (Dálník) was invented by Jan Anderle during 1930s. [ 7][ 8] Versatile pencil was invented by Czech company Koh-i-Noor Hardtmuth in 1937. [ 9][ 10] Silon textile material (synthetic fiber) was invented by Otto Wichterle during the 1940s.
Drahoslav Lím (September 30, 1925, in Czechoslovakia – August 22, 2003, in San Diego, California) was a Czech chemist. He invented polyhydroxyethylmethacrylate, the synthetic material used for soft contact lenses .
August Müller (inventor) August Müller (1864 – 1949), born in Mönchengladbach, was a medical student at the University of Kiel, Germany, and a pioneer in the manufacture of contact lenses. In 1889, he presented at the university his doctoral thesis titled Eyeglasses and corneal lenses [1] [2] in which he described his efforts to grind ...
America's Best Contacts & Eyeglasses is a discount provider of eye examinations, eyeglasses and contact lenses, with over 1000 retail locations in the United States as of May 31, 2024. The millennial store is located in Philadelphia, PA, which happened to be one of National Vision's first markets in their early days over 40 years ago. [1]
While a territory, Indiana had two governors appointed by the president of the United States. Since statehood in 1816, it has had 49 governors, serving 51 distinct terms; Isaac P. Gray and Henry F. Schricker are the only governors to have served non-consecutive terms. Four governors have served two four-year terms; territorial governor William ...
The history of human activity in Indiana, a U.S. state in the Midwest, stems back to the migratory tribes of Native Americans who inhabited Indiana as early as 8000 BC. Tribes succeeded one another in dominance for several thousand years and reached their peak of development during the period of Mississippian culture.