Purdue Univ. researchers led by Prof. Xiulin Rucan create the world’s whitest white paint, using BaSO₄ to reflect up to 98.1% of sunlight

A new paint developed by researchers at Purdue University is the coolest — literally — according to a report by The Associated Press. When Xiulin Ruan, a professor of mechanical engineering at the school, and his graduate students began working on this project seven years ago, they didn’t set out to invent a new paint…