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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 ...
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.
Thermochromic ink (also called thermochromatic ink) is a type of dye that changes color in response to a change in temperature. [1] [2] [3] It was first used in the 1970s in novelty toys like mood rings, but has found some practical uses in things such as thermometers, product packaging, and pens. [4]
Mood Rings While mood rings did change color, it had less to do with changing mood than body heat. Given that most people had a green or blue "mood," the trend faded by the end of the decade.
"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.
From puka shell necklaces to ruffled denim skirts, and as many mood rings as one could fit on their hand, the prime Britney/Justin era truly saw it all. SEE ALSO: What your old Barbies are worth now
The physical uses of temperature sensitive glass is mostly in a visual context. Some shower walls use these glass tiles on the walls so users can observe how hot/cold the water is before entry. [3] Other applications include mood rings, battery condition display and coffee cups.
Mood rings. Image credits: fermat9990 #28. ... The 20 best stocking stuffers you can get from Walmart under $20. AOL. Wayfair's Black Friday sale has over a million deals for your home — shop ...
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