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  2. Electric eye - Wikipedia

    en.wikipedia.org/wiki/Electric_eye

    Electric eye for a garage door opener. An electric eye is a photodetector used for detecting obstruction of a light beam. An example is the door safety system used on garage door openers that use a light transmitter and receiver at the bottom of the door to prevent closing if there is any obstruction in the way that breaks the light beam.

  3. Hush kit - Wikipedia

    en.wikipedia.org/wiki/Hush_kit

    Hush kit for the Pratt and Whitney JT8D-1 through -17 engines Two JT4As installed on a KLM DC-8. A hush kit is an aerodynamic device used to help reduce the noise produced by older aircraft jet engines. These devices are typically installed on older turbojet and low-bypass turbofan engines, as they are much louder than later high-bypass ...

  4. Bleach bypass - Wikipedia

    en.wikipedia.org/wiki/Bleach_bypass

    Bleach bypass, also known as skip bleach or silver retention, is a chemical effect which entails either the partial or complete skipping of the bleaching function during the processing of a color film. By doing this, the silver is retained in the emulsion along with the color dyes. The result is a black-and-white image over a color image.

  5. National Register of Historic Places listings in Columbus, Ohio

    en.wikipedia.org/wiki/National_Register_of...

    This is a list of the National Register of Historic Places entries in Columbus, Ohio, United States.The National Register is a federal register for buildings, structures, and sites of historic significance.

  6. Ohio State Route 823 - Wikipedia

    en.wikipedia.org/wiki/Ohio_State_Route_823

    The proposal for a bypass began in the 1962 which called for the construction of a 8 mi (13 km) bypass designated as Ohio State Route 423 running north from Rosemount to east of Sciotoville. [8] An engineering contract was awarded in the waning days of Governor Michael DiSalle 's administration in 1963 which called for the construction of a 14. ...

  7. Scanning laser ophthalmoscopy - Wikipedia

    en.wikipedia.org/wiki/Scanning_laser_ophthalmoscopy

    Scanning laser ophthalmoscopy developed as a method to view a distinct layer of the living eye at the microscopic level. The use of confocal methods to diminish extra light by focusing detected light through a small pinhole made possible the imaging of individual layers of the retina with greater distinction than ever before. [4]

  8. Photorefractive keratectomy - Wikipedia

    en.wikipedia.org/wiki/Photorefractive_keratectomy

    Mitomycin C worsens post-surgical dry eye. [15] PRK may be performed on one eye at a time to assess the results of the procedure and ensure adequate vision during the healing process. Activities requiring good binocular vision may have to be suspended between surgeries and during the sometimes extended healing periods. [citation needed]

  9. The Godz (Ohio band) - Wikipedia

    en.wikipedia.org/wiki/The_Godz_(Ohio_band)

    Formed in 1976, the band conceived their moniker only to later learn of a band from New York City already known as the Godz.A monetary settlement allowed them to keep their name.