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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).
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 ...
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 ...
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.
This system was developed by Albert Munsell, a painter, in the early 20th century to describe the full color spectrum, though the specially adapted Munsell soil color books commonly used by soil scientists only include the most relevant colors for soil. [16] The Munsell color system includes the following three components: [1] Hue: indicates ...
Photosynthetic reaction centre. Electron micrograph of a 2D crystal of the LH1-Reaction center photosynthetic unit. A photosynthetic reaction center is a complex of several proteins, pigments, and other co-factors that together execute the primary energy conversion reactions of photosynthesis. Molecular excitations, either originating directly ...
Photosystem. Photosystems are functional and structural units of protein complexes involved in photosynthesis. Together they carry out the primary photochemistry of photosynthesis: the absorption of light and the transfer of energy and electrons. Photosystems are found in the thylakoid membranes of plants, algae, and cyanobacteria.
The photosynthetic efficiency is the fraction of light energy converted into chemical energy during photosynthesis in green plants and algae. Photosynthesis can be described by the simplified chemical reaction. 6 H 2 O + 6 CO 2 + energy → C 6 H 12 O 6 + 6 O 2. where C 6 H 12 O 6 is glucose (which is subsequently transformed into other sugars ...