ecouterre.com
14 Aug '12, 3pm
Coming soon: A UV-monitoring wristband that changes from yellow to pink when you've had too much sun
No need to wait for your skin to blister before you realize it’s time to retreat into the shade. Scientists from the University of Strathclyde have invented an ultraviolet-ray-detecting wristband that changes color with prolonged exposure to the sun. Designed to provide a visual warning that no amount of clock-watching can match, the monitor works through an acid-release agent that gradually breaks down in the presence of UV radiation. The agent, in turn, triggers a pH-sensitive dye, which responds by turning from yellow to pink.
Full article:
http://www.ecouterre.com/uv-monitoring-bracelet-warns-you...