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Scientists Discover Modern Usage for the 4000-Year-Old Blue Pigment

• arclein

Derived from calcium copper silicate, it was already known that photons absorbed by 'Egyptian blue' can be emitted in the near-infrared range, however, scientists "measuring the temperature of surfaces coated in the color," demonstrated that it was "able to emit as many photons as it absorbs." This, Berkeley researchers believe , might lead to "applications in building integrated PV, such as solar windows tinted with the blue, and

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