The Wenatchee World

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Tonight

Lo23° Partly Cloudy

Tuesday

Hi37° Sunny

Tuesday Night

Lo31° Partly Cloudy

Wednesday

Hi50° Mostly Sunny

Wednesday Night

Lo32° Mostly Cloudy

Thursday

Hi43° Slight Chance Rain

Thursday Night

Lo32° Mostly Cloudy then Chance Rain

Friday

Hi44° Chance Rain

Friday Night

Lo28° Slight Chance Showers

Saturday

Hi42° Chance Snow Showers

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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