The Presidential Daily Brief

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    Meet the Tech That Turns You Magenta

    Fashion’s always chasing rainbows. Scientists have developed fabrics, nail polish and even hair dyes that react to changes in temperature and airflow with the ability to shift color like a mood ring. Wearable tech, such as sensors and LEDs woven into clothes, can keep time with your heartbeat or glimmer when you take a breath. With thermochromic dyes, super-strong and highly conductive graphene and other revolutionary materials, tech-savvy designers are letting humans mimic color-changing animals — not for camouflage, but to stand out from the monochromatic crowd.

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