The Wenatchee World

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This Afternoon

Hi38° Snow Likely

Tonight

Lo31° Snow

Sunday

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Sunday Night

Lo30° Cloudy

Monday

Hi30° Mostly Cloudy

Monday Night

Lo21° Mostly Cloudy

Tuesday

Hi28° Partly Sunny

Tuesday Night

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Wednesday

Hi27° Patchy Freezing Fog

Wednesday Night

Lo18° Mostly Cloudy

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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