News tagged with pigments

Why have Murillo's skies turned grey?

Smalt was one of the blue pigments the most commonly used by the artists between the 16th and 18th centuries. Unfortunately, this pigment is unstable and tends to fade with time. Researchers from the new European ...

May 19, 2011
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Lasers ID deadly skin cancer better than doctors

High-resolution images from a laser-based tool developed at Duke University could help doctors better diagnose melanoma, the deadliest form of skin cancer, while potentially saving thousands of lives and millions of dollars ...

Feb 23, 2011
3.7 / 5 (3) 0 | with audio podcast

Skin color: Handy tool for teaching evolution

Variations in skin color provide one of the best examples of evolution by natural selection acting on the human body and should be used to teach evolution in schools, according to a Penn State anthropologist.

Feb 20, 2011
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Aboriginal Australians at risk of bone, muscle pain

(PhysOrg.com) -- Aboriginal Australians are at risk of increased bone and muscle pain due to their inability to produce sufficient vitamin D, according to a University of Adelaide study published in the Medical Jo ...

Feb 07, 2011
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Impregnating plastics with carbon dioxide

Everyone has heard that carbon dioxide is responsible for global warming. But the gas also has some positive characteristics. Researchers are now impregnating plastics with compressed CO2 in a process that could ...

Jan 03, 2011
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Ecologists get fish eye view of sexual signals

Carotenoid pigments are the source of many of the animal kingdom's most vivid colours; flamingos' pink feathers come from eating carotenoid-containing shrimps and algae, and carotenoid colours can be seen among garden birds ...

Nov 10, 2010
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