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  2. Thermochromism - Wikipedia

    en.wikipedia.org/wiki/Thermochromism

    Thermochromism is the property of substances to change color due to a change in temperature. A mood ring is an example of this property used in a consumer product although thermochromism also has more practical uses, such as baby bottles, which change to a different color when cool enough to drink, or kettles which change color when water is at ...

  3. Color of chemicals - Wikipedia

    en.wikipedia.org/wiki/Color_of_chemicals

    The color of chemicals is a physical property of chemicals that in most cases comes from the excitation of electrons due to an absorption of energy performed by the ...

  4. Hue-heat hypothesis - Wikipedia

    en.wikipedia.org/wiki/Hue-heat_hypothesis

    Taj Mahal in warm light from a low elevation sun. Taj Mahal in the cold light from a high elevation sun. The hue-heat hypothesis is the hypothesis that an environment with warm colors (red, orange yellow hues) will feel warmer in terms of temperature and comfort, while an environment with cold colors (blue, green hues) will feel cooler.

  5. Blue bottle experiment - Wikipedia

    en.wikipedia.org/wiki/Blue_bottle_experiment

    However, shaking the bottle oxidizes methylene blue back into its blue form. With further shaking, this color-change cycle can be repeated many times. [1] This experiment is a classic chemistry demonstration that can be used in laboratory courses as a general chemistry experiment to study chemical kinetics and reaction mechanism. [2]

  6. Flame test - Wikipedia

    en.wikipedia.org/wiki/Flame_test

    A flame test involves introducing a sample of the element or compound to a hot, non-luminous flame and observing the color of the flame that results. [4] The compound can be made into a paste with concentrated hydrochloric acid, as metal halides, being volatile, give better results. [5] Different flames can be tried to verify the accuracy of ...

  7. Color temperature - Wikipedia

    en.wikipedia.org/wiki/Color_temperature

    The color temperature scale describes only the color of light emitted by a light source, which may actually be at a different (and often much lower) temperature. [1] [2] Color temperature has applications in lighting, [3] photography, [4] videography, [5] publishing, [6] manufacturing, [7] astrophysics, [8] and other fields.

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    mail.aol.com

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  9. Correlated color temperature - Wikipedia

    en.wikipedia.org/wiki/Correlated_color_temperature

    As it does not use one fixed table, it can be applied to any observer color matching function. [26] The inverse calculation, from color temperature to corresponding chromaticity coordinates, is discussed in Planckian locus § Approximation.