Engineers repurpose 19th-century photography technique to make stretchy, color-changing films - Phys.org
Jennifer Chu |
Technology |
Phys.Org |
08-01-2022 |
94
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, colorâ
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