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  2. Violet Parr - Wikipedia

    en.wikipedia.org/wiki/Violet_Parr

    Violet Parr is a fictional character in Pixar 's animated superhero film The Incredibles (2004) and its sequel Incredibles 2 (2018). The oldest child of Bob and Helen Parr (Mr. Incredible and Elastigirl), Violet is born with the superhuman abilities to render herself invisible and generate force fields. Voiced by Sarah Vowell, Violet is a shy ...

  3. Secondary color - Wikipedia

    en.wikipedia.org/wiki/Secondary_color

    A RYB color wheel with tertiary colors described under the modern definition. RYB is a subtractive mixing color model, used to estimate the mixing of pigments (e.g. paint) in traditional color theory, with primary colors red, yellow, and blue. The secondary colors are green, purple, and orange as demonstrated here: red.

  4. Crystal violet - Wikipedia

    en.wikipedia.org/wiki/Crystal_violet

    Crystal violet or gentian violet, also known as methyl violet 10B or hexamethyl pararosaniline chloride, is a triarylmethane dye used as a histological stain and in Gram's method of classifying bacteria. Crystal violet has antibacterial, antifungal, and anthelmintic ( vermicide) properties and was formerly important as a topical antiseptic.

  5. Spectral color - Wikipedia

    en.wikipedia.org/wiki/Spectral_color

    Newton's color terms included red, orange, yellow, green, blue, indigo, and violet; this color sequence is still used to describe spectral colors colloquially and a mnemonic for it is commonly known as "Roy G. Biv". In modern divisions of the spectrum, indigo is often omitted [broken anchor] and a blue-green color is sometimes included. Some ...

  6. Visible spectrum - Wikipedia

    en.wikipedia.org/wiki/Visible_spectrum

    The spectral colors from red to violet are divided by the notes of the musical scale, starting at D. The circle completes a full octave, from D to D. Newton's circle places red, at one end of the spectrum, next to violet, at the other. This reflects the fact that non-spectral purple colors are observed when red and violet light are mixed.

  7. Blue laser - Wikipedia

    en.wikipedia.org/wiki/Blue_laser

    A blue laser emits electromagnetic radiation with a wavelength between 400 and 500 nanometers, which the human eye sees in the visible spectrum as blue or violet. [1] Blue lasers can be produced by: direct, inorganic diode semiconductor lasers based on quantum wells of gallium (III) nitride at 380-417nm [2] [3] or indium gallium nitride at 450 ...

  8. Orchid (color) - Wikipedia

    en.wikipedia.org/wiki/Orchid_(color)

    Vivid purple. B: Normalized to [0–255] (byte) Orchid is a bright rich purple color that resembles the color which various orchids often exhibit. Various tones of orchid may range from grayish purple to purplish-pink to strong reddish purple. The first recorded use of orchid as a color name in English was in 1915. [1]

  9. Biuret test - Wikipedia

    en.wikipedia.org/wiki/Biuret_test

    The intensity of the color, and hence the absorption at 540 nm, is directly proportional to the protein concentration, according to the Beer–Lambert law. Despite its name, the reagent does not in fact contain biuret [(H 2 N−CO−) 2 NH]. The test is named so because it also gives a positive reaction to the peptide-like bonds in the biuret ...