Related topics: light

Biomimetic dual-color domes programmable for encryption

Many organisms in nature have evolved spots with two structural colors on their bodies, like the Papilio Palinurus butterfly. The green color on its wings derives from the turquoise-yellow dual color spots.

Red giant Betelgeuse was yellow some 2,000 years ago

An interdisciplinary team centered around a Jena astrophysicist utilized observations from antiquity to prove that Betelgeuse—the bright red giant star in the upper left of the constellation Orion—was yellow-orange some ...

New model for analyzing color vision in aphids

Aphids are one of the least welcome garden visitors. These small insects can cause substantial damage in agriculture, but how do they actually choose their host plants? What are the basic mechanisms behind this? Researchers ...

New method can remove dyes from wastewater

North Carolina State University researchers have demonstrated that a synthetic polymer can remove certain dyes from water, and that the polymer can be recovered and reused. The findings offer a new potential method for cleaning ...

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