Color-changing road signs could be better at getting drivers' attention

Published August 12, 2019

New Atlas, a popular science and tech news outlet, quotes Qiaoqiang Gan in a story about a new material that could be used to create road signs that change color when reflecting light at night. “Just like a prism can split a white light into a rainbow, this microsphere coating delivers another way to selectively reflect a part of the white light and result in a colorful image,” said Gan.


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