The Wenatchee World

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Tonight

Lo60° Mostly Clear

Monday

Hi88° Sunny

Monday Night

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Tuesday

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Tuesday Night

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Wednesday Night

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Thursday Night

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Friday

Hi75° Slight Chance T-storms

Science in the public eye

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PHILADELPHIA — “That, to me, looks like Egyptian blue,” Lynn Grant said as she scrutinized a painting on mud plaster from more than 3,100 years ago. Colleague Molly Gleeson agreed, but was curious why tests showed that the paint contained iron — not a standard ingredient in the ancient blue pigment.

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