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  2. Guide number - Wikipedia

    en.wikipedia.org/wiki/Guide_number

    Guide numbers are a composite unit of measure comprising two factors: aperture ratio and distance. Guide numbers may be expressed in either of these units of measure: f‑number⋅meters or f‑number⋅feet. Throughout most of the world where the metric system ( SI) is observed, guide numbers are expressed as a unitless numeric value like 34 ...

  3. List of aviation, avionics, aerospace and aeronautical ...

    en.wikipedia.org/wiki/List_of_aviation,_avionics...

    ALT 2: Altimeter: ALT 3: Altitude: ALT hold Altitude hold mode ALTS Altitude select ALUM Aluminum AMC Acceptable Means of Compliance AME Aircraft Maintenance Engineer: AME Aviation Medical Examiner: AMLCD Active-matrix liquid-crystal display: AMM Aircraft Maintenance Manual AMO Approved Maintenance Organization AMS Air management system AMSL

  4. General Dynamics F-16 Fighting Falcon - Wikipedia

    en.wikipedia.org/wiki/General_Dynamics_F-16...

    The Block 15's APG-66(V)2 model added more powerful signal processing, higher output power, improved reliability, and increased range in cluttered or jamming environments. The Mid-Life Update (MLU) program introduced a new model, APG-66(V)2A, which features higher speed and more memory.

  5. Serial number - Wikipedia

    en.wikipedia.org/wiki/Serial_number

    A software serial number, otherwise called a product key, is usually not embedded in the software but is assigned to a specific user with a right to use the software. The software will function only if a potential user enters a valid product code. The vast majority of possible codes are rejected by the software.

  6. Fossil-hunting diver says he has found a large section of ...

    www.aol.com/news/fossil-hunting-diver-says-found...

    The tusk measures about 4 feet (1.2 meters) and weighs 70 pounds (31 kilograms), Lundberg said, and was found at a depth of about 25 feet (7.6 meters) near Venice, Florida. It's currently sitting ...

  7. Waltham Model 1857 - Wikipedia

    en.wikipedia.org/wiki/Waltham_Model_1857

    The Waltham Model 1857 is a watch made by the American Watch Company, later called the Waltham Watch Company in Waltham, Massachusetts . The Model 1857 was first made in 1857. Prior to that year, pocket watches were not made of standard parts and repairing and making the watches was difficult and expensive. The American Watch Company created ...

  8. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.

  9. Star catalogue - Wikipedia

    en.wikipedia.org/wiki/Star_catalogue

    The Guide Star Catalog is an online catalogue of stars produced for the purpose of accurately positioning and identifying stars satisfactory for use as guide stars by the Hubble Space Telescope program. The first version of the catalogue was produced in the late 1980s by digitizing photographic plates and contained about 20 million stars, out ...