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  2. Biological effects of high-energy visible light - Wikipedia

    en.wikipedia.org/wiki/Biological_effects_of_high...

    Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.

  3. Hawaii Medical Service Association - Wikipedia

    en.wikipedia.org/wiki/Hawaii_Medical_Service...

    The Hawaii Medical Service Association (HMSA) is a member of the Blue Cross Blue Shield Association, an association of independent medical insurance providers. A nonprofit, mutual benefit association founded in 1938, HMSA covers more than half of the state’s population. HMSA’s headquarters are located at the HMSA Center, 818 Keeaumoku ...

  4. Fluorescent lamp - Wikipedia

    en.wikipedia.org/wiki/Fluorescent_lamp

    Fluorescent lamp tubes are often straight and range in length from about 100 millimeters (3.9 in) for miniature lamps, to 2.43 meters (8.0 ft) for high-output lamps. Some lamps have a circular tube, used for table lamps or other places where a more compact light source is desired.

  5. Baltimore and Ohio P-7 - Wikipedia

    en.wikipedia.org/wiki/Baltimore_and_Ohio_P-7

    The Baltimore and Ohio’s P-7 class was a class of 20 Pacific type locomotives built in 1927. Named for the first 20 Presidents of the United States, they were the prime motive power for the B&O’s top passenger trains for 31 years. One example, Baltimore and Ohio 5300, the "President Washington", has been preserved.

  6. List of Blue Bloods episodes - Wikipedia

    en.wikipedia.org/wiki/List_of_Blue_Bloods_episodes

    Blue Bloods. episodes. Blue Bloods is an American police procedural television series created by Robin Green and Mitchell Burgess. It premiered on September 24, 2010, on CBS. [ 1] The series centers on the Reagans, a family of police officers in New York City. Frank Reagan ( Tom Selleck) is the police commissioner with three grown children ...

  7. Chesapeake and Ohio Railway - Wikipedia

    en.wikipedia.org/wiki/Chesapeake_and_Ohio_Railway

    The Chesapeake and Ohio Railway ( reporting marks C&O, CO) was a Class I railroad formed in 1869 in Virginia from several smaller Virginia railroads begun in the 19th century. Led by industrialist Collis P. Huntington, it reached from Virginia's capital city of Richmond to the Ohio River by 1873, where the railroad town (and later city) of ...

  8. Blue Star Line - Wikipedia

    en.wikipedia.org/wiki/Blue_Star_Line

    Plans for the liners Avila and Avelona, built in 1926–27. Blue Star Line was formed as an initiative by the Vestey Brothers, a Liverpool -based butchers company, who had founded the Union Cold Storage Company to take advantage of refrigeration practices. They developed a large importation business, shipping frozen meat from South America to ...

  9. List of companies of the United Kingdom A–J - Wikipedia

    en.wikipedia.org/wiki/List_of_companies_of_the...

    Hafren Dyfrdwy — is a utility company (water supply). Established in 1997, its headquarters is in Packsaddle, Rhostyllen, Wrexham, Wales. It was formed from the merger of Wrexham Water plc and Chester Waterworks Company, and was formerly known as Dee Valley Water. Its parent company is Severn Trent.

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