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en.wikipedia.org/wiki/Mood_ring

A mood ring is a ring that contains a thermochromic element, such as liquid crystal, that changes colors based upon the temperature of the finger of the wearer.

news.vanderbilt.edu/2016/11/21/mood-ring-materials-a-new-way-to-detect-damage-in-failing-infrastructure

Nov 21, 2016 ... “Mood ring materials” could play an important role in minimizing and mitigating damage to the nation's failing infrastructure. The American ...

www.thoughtco.com/mood-rings-thermochromic-liquid-crystals-608013

Mar 24, 2017 ... Mood rings have a stone or band that changes color in response to temperature. Here's a look at the liquid crystals in mood rings and how they ...

www.alibaba.com/showroom/mood-ring-material.html

Mood Ring Material, Wholesale Various High Quality Mood Ring Material Products from Global Mood Ring Material Suppliers and Mood Ring Material Factory ...

.ask.com/youtube?q=Mood+Ring+Material&v=ENbRprZcuV8
Nov 21, 2016 ... "Mood ring materials" are a new type of smart sensing technology that could play an important role in minimizing and mitigating damage to the ...

www.azobuild.com/news.aspx?newsID=21738

Nov 22, 2016 ... Mood ring materials” are likely to play a significant role in reducing and mitigating damage to the failing infrastructure around the country.

www.paintsquare.com/news/?fuseaction=view&id=15868

Nov 29, 2016 ... Mood rings may have been a fleeting fad of the 1970s, but researchers at Vanderbilt University are using the basic concept as a means of ...

www.constructionequipment.com/video-mood-ring-material-infrastructure-under-stress

Nov 23, 2016 ... Video: 'Mood Ring Material' for Infrastructure Under Stress. Vanderbilt University develops 'self-reporting' coatings that show potential for ...

www.bestmoodrings.com/blog/how-mood-rings-work

Mar 7, 2012 ... So How Do Mood Rings Work? and where did they come from? The History of Mood Rings. Moods rings were invented in 1975 by two New ...

entertainment.howstuffworks.com/question443.htm

Mood rings were first seen as an extremely popular fad in the late 1970s, and they resurface regularly! The idea behind a mood ring is simple: Wear it on your ...