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  2. Mood ring - Wikipedia

    en.wikipedia.org/wiki/Mood_ring

    The original "mood ring" introduced as the Mood Stone in the summer of 1975. A mood ring is a finger ring that contains a thermochromic element, or "mood stone", that changes colors based on the temperature of the finger of the wearer. Finger temperature, as long as the ambient temperature is relatively constant, is significantly determined by ...

  3. 'Love Tester' mood rings recalled due to high lead levels - AOL

    www.aol.com/news/2010-09-21-love-tester-mood...

    "Love Tester" mood rings and necklaces sold over the past five years are being recalled after testing showed they contain high levels of lead, the U.S. Consumer Product Safety Commission said.

  4. Thermochromism - Wikipedia

    en.wikipedia.org/wiki/Thermochromism

    A mood ring is an example of this property used in a consumer product although thermochromism also has more practical uses, such as baby bottles, which change to a different color when cool enough to drink, or kettles which change color when water is at or near boiling point.

  5. 50 Toy Fads That Drove the Grown-ups Crazy - AOL

    www.aol.com/finance/50-toy-fads-drove-grown...

    Related: Most Dangerous Toys of All Time. Amazon. Bruised shins, America. America, bruised shins. ... Mood rings were supposed to be as individual as the teens who emptied the shelves of them ...

  6. Mood (psychology) - Wikipedia

    en.wikipedia.org/wiki/Mood_(psychology)

    The idea of social mood as a "collectively shared state of mind" (Nofsinger 2005; Olson 2006) is attributed to Robert Prechter and his socionomics. The notion is used primarily in the field of economics (investments). In sociology, philosophy, and psychology, crowd behavior is the formation of a common mood directed toward an object of ...

  7. Scientists Can't Decide if Social Media Is Addictive - AOL

    www.aol.com/lifestyle/scientists-cant-decide...

    In particular, some studies suggest abstaining from social media can improve mood and well-being, while others seem to argue that stepping away from the screens can cause serious withdrawal ...

  8. Liquid crystal thermometer - Wikipedia

    en.wikipedia.org/wiki/Liquid_crystal_thermometer

    Liquid crystal thermometers are also commonly used in aquariums, [2] in homebrewing, [3] and in mood rings. The liquid crystal thermometer was invented by Bob Parker in California, one of many of the inventor's thermochromic applications patented in the 1970s.

  9. Meet the mood ring of makeup: This magic Givenchy lipstick ...

    www.aol.com/lifestyle/meet-mood-ring-makeup...

    True to its name, Temptation Black Magic lipstick appears to be black in the tube. But don’t worry; a swipe of this shade won’t make you look like you’re auditioning for a goth band.