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  2. Stack light - Wikipedia

    en.wikipedia.org/wiki/Stack_light

    Stack light in automated production for in-line quality inspection. Stack lights (also known as signal tower lights, indicator lights, andon lights, warning lights, industrial signal lights, or tower lights) are commonly used on equipment in industrial manufacturing and process control environments to provide visual and audible indicators of a machine's status to machine operators, technicians ...

  3. 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.

  4. 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.

  5. Hazardous Materials Identification System - Wikipedia

    en.wikipedia.org/wiki/Hazardous_Materials...

    A sign that uses a yellow 'Instability' bar, which was never part of HMIS. ("Instability" is a NFPA 704 term.) Prior to 2002, with HMIS' third edition (HMIS III), both systems used the same colors, blue, red, yellow and white, and used the same criteria for 'flammability'/'Fire Hazard' and 'reactivity'.

  6. Xanthochromia - Wikipedia

    en.wikipedia.org/wiki/Xanthochromia

    Xanthochromia, from the Greek xanthos (ξανθός) "yellow" and chroma (χρώμα) "colour", is the yellowish appearance of cerebrospinal fluid that occurs several hours after bleeding into the subarachnoid space caused by certain medical conditions, most commonly subarachnoid hemorrhage. [1]

  7. National colours of Germany - Wikipedia

    en.wikipedia.org/wiki/National_colours_of_Germany

    Coat of arms of Emperor Henry VI, Codex Manesse The Reichsbanner of the Holy Roman Emperors as used from the 15th century. The choice of black, red, and gold as national colours was retrospectively motivated by occurrence of this combination of colours in the medieval coat of arms of the Holy Roman Emperors, the black Reichsadler in a golden field used since the 12th century.

  8. School colors - Wikipedia

    en.wikipedia.org/wiki/School_colors

    Princeton University's store, featuring the school's orange and black colors. The tradition of school colors appears to have started in England in the 1830s. The University of Cambridge chose Cambridge blue for the Boat Race against the University of Oxford in 1836, [2] Westminster School have used pink as their color since a boat race against Eton School in 1837, [3] and Durham University ...

  9. Flag of Mauritius - Wikipedia

    en.wikipedia.org/wiki/Flag_of_Mauritius

    Yellow represents the light of freedom shining over the island. Green represents the agriculture of Mauritius and its colour throughout the 12 months of the year. In an attempt to unite the nation, especially following the deadly and divisive riots of 1965 and those of 1968 , the colours also have political origins.