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The 7.5×54mm French, 7.5 French, or 7.5 MAS (designated as the 7,5 × 54 MAS by the C.I.P. [1]) is a rimless bottlenecked rifle cartridge. It was developed by France as an update to the 7.5×57mm MAS mod. 1924 cartridge. It replaced the obsolete 8×50mmR Lebel round used during World War I, and served as the French service cartridge until ...
The Munsell color system, showing: a circle of hues at value 5 chroma 6; the neutral values from 0 to 10; and the chromas of purple-blue (5PB) at value 5. In colorimetry, the Munsell color system is a color space that specifies colors based on three properties of color: hue (basic color), value ( lightness ), and chroma (color intensity).
Albert Henry Munsell (January 6, 1858 – June 28, 1918) was an American painter, teacher of art, and the inventor of the Munsell color system . He was born in Boston, Massachusetts, [ 1] attended and served on the faculty of Massachusetts Normal Art School, and died in nearby Brookline . As a painter, he was noted for seascapes and portraits.
Munsell Color Company. The Munsell Color Company was founded by Albert H. Munsell in 1917 with two other stockholders, Arthur Allen and Ray Greenleaf. [1] It was located at Boston, Massachusetts. This company was manufactured to carry on business by publishing books, selling color supplies for schools such as crayons, water colors, paper colors ...
The Farnsworth–Munsell 100 Hue Color Vision test is a color vision test often used to test for color blindness. The system was developed by Dean Farnsworth in the 1940s and it tests the ability to isolate and arrange minute differences in various color targets with constant value and chroma that cover all the visual hues described by the ...
7.5mm 1882 Ordnance. The Swiss 7.5mm center-fire revolver cartridge, also known as 7.5x23mmR, was used militarily in the 1882 and 1882/1929 revolvers of the Swiss army, as well as in Swiss civilian revolvers of the 'bulldog' type. The case is of brass; the heeled bullet is of a hard lead alloy, fully jacketed and coated externally with a wax ...
Another influential older cylindrical color model is the early-20th-century Munsell color system. Albert Munsell began with a spherical arrangement in his 1905 book A Color Notation, but he wished to properly separate color-making attributes into separate dimensions, which he called hue, value, and chroma, and after taking careful measurements ...
Typical for French rifles of the period, the MAS-36 had no manual safety. [4] The rifle was designed with an iron sight line consisting of a rear tangent-type aperture sight element that was calibrated for 7.5×54mm French mle1929 C ammunition for 100–1,200 m (109–1,312 yd) in 100 metres (109 yd) increments. The original front sighting ...