30, 20, and 10 Years Ago in OPN

Environmental optics; Islamic optics achievements; underwater imaging

Woman in lab1993 [Courtesy of Corning]

“In the last three decades, businesses used to spewing black soot from smokestacks have undergone nothing short of a transformation … In 30 years’ time, businesses have learned how to negotiate with regulators to achieve compromise on strict environmental standards. Slowly, environmental R&D has produced substitute chemicals and naturally occurring substances to reduce industry’s reliance on harsh pollutants. As businesses learn how to adjust their fabrication processes, they actually eliminate pollutants rather than transfer them from one medium to another.”

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