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  2. Sunglasses - Wikipedia

    en.wikipedia.org/wiki/Sunglasses

    Sunglasses are especially important for children, as their ocular lenses are thought to transmit far more HEV light than adults (lenses "yellow" with age). There has been some speculation that sunglasses actually promote skin cancer. [32] This is due to the eyes being tricked into producing less melanocyte-stimulating hormone in the body.

  3. 30 Historical Facts That You Might Not Have Heard Of Before - AOL

    www.aol.com/43-moments-had-bigger-influence...

    In 1858, Mason created jars that were made of transparent glass with a screw-on top. Inside the flat metal lids, he placed a rubber ring, which was crucial to making the container airtight.

  4. American Optical Company - Wikipedia

    en.wikipedia.org/wiki/American_Optical_Company

    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.

  5. Glasses - Wikipedia

    en.wikipedia.org/wiki/Glasses

    Sunglasses may be worn for aesthetic purposes, or simply to hide the eyes. Examples of sunglasses that were popular for these reasons include tea shades and mirrorshades. Many blind people wear nearly opaque glasses to hide their eyes for cosmetic reasons. Many people with light sensitivity conditions wear sunglasses or other tinted glasses to ...

  6. 1858 in the United States - Wikipedia

    en.wikipedia.org/wiki/1858_in_the_United_States

    September 14 – Fordyce Beals patents his six shooter revolver which will be produced by E. Remington & Sons of Ilion, New York as the Remington Model 1858. November 17 – Denver is founded. December 8 – Rensselaer, Indiana is incorporated.

  7. 1858 - Wikipedia

    en.wikipedia.org/wiki/1858

    1858 was a common year starting on Friday of the Gregorian calendar and a common year starting on Wednesday of the Julian calendar, the 1858th year of the Common Era (CE) and Anno Domini (AD) designations, the 858th year of the 2nd millennium, the 58th year of the 19th century, and the 9th year of the 1850s decade. As of the start of 1858, the ...

  8. 8th Street and St. Mark's Place - Wikipedia

    en.wikipedia.org/wiki/8th_Street_and_St._Mark's...

    There are several open-front markets that sell sunglasses, clothing, and jewelry. In her 400-year history of St. Mark's Place (St. Marks Is Dead), Ada Calhoun called the street "like superglue for fragmented identities" and wrote that "the street is not for people who have chosen their lives ... [it] is for the wanderer, the undecided, the ...

  9. History of optics - Wikipedia

    en.wikipedia.org/wiki/History_of_optics

    As the stones were experimented with, it was slowly understood that shallower lenses magnified more effectively. Around 1286, possibly in Pisa, Italy, the first pair of eyeglasses was made, although it is unclear who the inventor was. [50] The earliest known working telescopes were the refracting telescopes that appeared in the Netherlands in