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  2. Brown Boy 2 - Wikipedia

    en.wikipedia.org/wiki/Brown_Boy_2

    Brown Boy 2, also known as Good Intentions (Brown Boy 2 Deluxe Version), is a reissued studio album by Canadian rapper Nav. [2] It was released on May 11, 2020, as the deluxe edition of his third studio album, Good Intentions , which was released three days prior, on May 8, 2020. [ 3 ]

  3. North American Vertical Datum of 1988 - Wikipedia

    en.wikipedia.org/wiki/North_American_Vertical...

    It superseded the National Geodetic Vertical Datum of 1929 (NGVD 29), [2] previously known as the Sea Level Datum of 1929. NAVD 88, along with North American Datum of 1983 (NAD 83), is set to be replaced in 2025 with a new geometric reference frame and geopotential datum, based on GPS and gravimetric geoid models.

  4. Perfect Timing (mixtape) - Wikipedia

    en.wikipedia.org/wiki/Perfect_Timing_(mixtape)

    Before Perfect Timing was released, Nav and Metro Boomin both produced the former's song "Up", from his self-titled debut mixtape and first project (2017). On July 21, 2017, the same day the mixtape was released, Nav sat down for an interview with Paul Thompson of Complex. He described it as "more serious" and it features instrumentals that are ...

  5. Torino scale - Wikipedia

    en.wikipedia.org/wiki/Torino_scale

    ("Torino scale" is the proper usage, not "Turin scale.") [2] This version was published in a subsequent peer-reviewed article. [ 3 ] Due to exaggerated press coverage of Level 1 asteroids, a rewording of the Torino scale was published in 2005, adding more details and renaming the categories: in particular, Level 1 was changed from "Events ...

  6. Transit (satellite) - Wikipedia

    en.wikipedia.org/wiki/Transit_(satellite)

    The Transit system, also known as NAVSAT or NNSS (for Navy Navigation Satellite System), was the first satellite navigation system to be used operationally. The radio navigation system was primarily used by the U.S. Navy to provide accurate location information to its Polaris ballistic missile submarines, and it was also used as a navigation system by the Navy's surface ships, as well as for ...

  7. Board foot - Wikipedia

    en.wikipedia.org/wiki/Board_foot

    The board foot or board-foot is a unit of measurement for the volume of lumber in the United States and Canada. [1] It equals the volume of a board that is one foot (30.5 cm) in length, one foot in width, and one inch (2.54 cm) in thickness, or exactly 2.359 737 216 liters.

  8. Janka hardness test - Wikipedia

    en.wikipedia.org/wiki/Janka_hardness_test

    (The diameter was chosen to produce a circle with an area of 100 square millimeters, or one square centimeter.) [2] A common use of Janka hardness ratings is to determine whether a species is suitable for use as flooring. For hardwood flooring, the test usually requires an 80 mm × 150 mm (3 in × 6 in) sample with a thickness of at least 6–8 ...

  9. Thickness-to-chord ratio - Wikipedia

    en.wikipedia.org/wiki/Thickness-to-chord_ratio

    a=chord, b=thickness, thickness-to-chord ratio = b/a The F-104 wing has a very low thickness-to-chord ratio of 3.36%. In aeronautics, the thickness-to-chord ratio, sometimes simply chord ratio or thickness ratio, compares the maximum vertical thickness of a wing to its chord.