The Wenatchee World

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Overnight

Lo71° Mostly Clear

Monday

Hi102° Hot

Monday Night

Lo71° Clear

Tuesday

Hi102° Hot

Tuesday Night

Lo71° Mostly Clear

Wednesday

Hi98° Hot

Wednesday Night

Lo70° Mostly Clear

Thursday

Hi100° Hot

Thursday Night

Lo70° Mostly Clear

Friday

Hi99° Slight Chc Thunderstorms

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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