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Colors

Refrigerator color. Figure: Courtesy of researchers, UCLA

White colors especially for cooling buildings

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William Henry Parkin. From Wikipedia

The accidental discovery of William Henry Parkin is the basis for the organic chemistry and pharmaceutical industries

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Mitvan fabrics, made of wool and decorated with red and blue stripes. Photo: Clara Amit, courtesy of the Antiquities Authority.

Evidence of the use of dyeing plants in textiles from the days of Kings David and Solomon

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Tiny bundles of melanin bound between keratin found in the feathers of this African starling react with light to produce the iridescent colors on its back. [Courtesy of Liliana D'Alba]

Colorful nanomaterials inspired by bird feathers

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The crystal structure used to make the pigment in different colors. Graphic courtesy of the University of Oregon

Development of new colors thanks to a new pigment

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Blue and orange glow in response to purple lighting

A new family of light-emitting materials

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student with carotenoids. Image: Rich Richins. Photo: University of New Mexico

"Green" extraction method to produce red pigment

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A Coca Cola bear with a red shirt

Red attracts women

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Cut through the retina. Except for the gray engulfing layers at the bottom, all the parts are transparent and have been painted here for demonstration purposes only. The nerve cells fill the blue volume, and the cell nuclei are pink, brown and red. The light comes from the pupil of the eye (above) and is captured in the funnels of the glial cells (green) where it is concentrated to the color-sensitive cells (membranes) marked in purple. The rest of the scattered light reaches the reed cells that are not sensitive to color (in orange). The thickness of the retina is about a quarter to half a millimeter.

A 120-year-old mystery was solved - Technion researchers found how the structure of the retina helps sharpen vision

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New durable blue pigment

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New materials change their color when exposed to a magnetic field

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Characterization of the blue color of the Mayan culture

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