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  2. Yellow ribbon - Wikipedia

    en.wikipedia.org/wiki/Yellow_ribbon

    Yellow Ribbon rededication ceremony to commemorate the 3rd Infantry Division's fourth deployment since September 11, 2001, at Victory Park in Hinesville. Yellow is the official color of the armor branch of the U.S. Army, used in insignia, etc., and depicted in Hollywood movies by the yellow neckerchief adorning latter-half 19th century, horse-mounted U.S. Cavalry soldiers.

  3. Soil color - Wikipedia

    en.wikipedia.org/wiki/Soil_color

    Soil colors influenced by mineralogy. Soil color is often the most visually apparent property of soil. While color itself does not influence the behavior or practical use of soils, [1] it does indicate important information about the soil organic matter content, mineralogy, moisture, and drainage.

  4. Ochre - Wikipedia

    en.wikipedia.org/wiki/Ochre

    The major ingredient of all the ochres is iron(III) oxide-hydroxide, known as limonite, which gives them a yellow colour. A range of other minerals may also be included in the mixture: [5]: 134 Yellow ochre (Goldochre) pigment. Yellow ochre, FeO(OH)·nH 2 O, is a hydrated iron hydroxide (limonite) also called gold ochre. Red ochre, Fe 2 O 3 ·nH

  5. Color blindness - Wikipedia

    en.wikipedia.org/wiki/Color_blindness

    For denotative tasks (color naming), using the most common shades of colors. For example, green and yellow are colors of confusion in red–green CVD, but it is not common to mix forest green ( ) with bright yellow ( ). Mistakes by the color blind increase drastically when uncommon shades are used, e.g. neon green ( ) with dark yellow ( ).

  6. Penalty card - Wikipedia

    en.wikipedia.org/wiki/Penalty_card

    A yellow card is used in several sports and most commonly indicates a warning or a temporary suspension. Two of them are always and most commonly followed by a red card. A yellow card is used in many different sporting codes. Its meaning differs among sports; however, it most commonly indicates a caution given to a player regarding their ...

  7. Gadsden flag - Wikipedia

    en.wikipedia.org/wiki/Gadsden_flag

    Gadsden flag; Use: Banner: Proportion: Varies, generally 2:3: Adopted: December 20, 1775: Design: A yellow banner charged with a yellow spiraled timber rattlesnake facing toward the hoist sitting upon a patch of lush green grass, with thirteen rattles, representing the thirteen colonies, the words Dont Tread on Me positioned below the snake in black font

  8. Arylide yellow - Wikipedia

    en.wikipedia.org/wiki/Arylide_Yellow

    Arylide yellow, also known as Hansa yellow and monoazo yellow, is a family of organic compounds used as pigments. They are primarily used as industrial colorants including plastics, building paints and inks. They are also used in artistic oil paints, acrylics and watercolors. These pigments are usually semi-transparent and range from orange ...

  9. Yellow line (road marking) - Wikipedia

    en.wikipedia.org/wiki/Yellow_line_(road_marking)

    Countries formerly part of the British Empire are likely to retain a modified version of the British laws including the basic principles regarding road safety. [citation needed] In Malta for example, a single yellow line, means no waiting (i.e. no parking, but alighting of passengers is permitted).