#author("2022-08-02T04:12:04+09:00","","") Engineers repurpose 19th-century photography technique to make stretchy, color-changing films - Phys.org Imagine stretching a piece of film to reveal a hidden message. Or checking an arm band's color to gauge muscle mass. Or sporting a swimsuit that changes hue as you do laps. Such chameleon-like, color- Author : Jennifer Chu #technology #tech #innovation #engineering #business #iphone #technews #science #design #apple #gadgets #electronics #android #programming #software #smartphone #samsung #instagood #coding #computer #pro #instatech #education #security #gadget #mobile #instagram #technologynews #HATINC READ MORE : https://hatinco.com/2022-08-repurpose-19th-century-photography-technique-stretchy.htm