From myth to reality: Photos prove triple rainbows exist


Few people have ever claimed to see three rainbows arcing through the sky at once. In fact, scientific reports of these phenomena, called tertiary rainbows, were so rare — only five in 250 years —…

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Faster diagnostics through cheap, ultra-portable blood testing


Blood tests are important diagnostic tools. They accurately tease-out vanishingly small concentrations of proteins and other molecules that help give a picture of overall health or signal the presence of specific diseases. Current testing procedures,…

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