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Smoke from Canadian wildfires is again blanketing parts of the U.S. in a thick haze. Midwestern cities like Chicago, Minneapolis, Detroit and Milwaukee posted some of the worst air quality in the ...
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The Color Purple You Are Seeing Is ‘Not Real’. It Is Just a Mere Optical Illusion Created in the Brain
From early childhood, we’ve been taught to recognize the colors of the rainbow—red, orange, yellow, green, blue, indigo, and violet—using the iconic acronym ROYGBIV. We see them in nature, on color ...
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