Mood ring: Difference between revisions
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→History: Re-added Maris Ambats to the history section. The son of Marvin Warwick regularly attempts to remove and change the history section of this article, though most other sources credit Joshua Reynolds and Maris Ambats as the inventors of the mood ring. |
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[[File:Original Mood Stone ring.jpg|thumb|The original "mood ring" introduced as the Mood Stone in the summer of 1975]] |
[[File:Original Mood Stone ring.jpg|thumb|The original "mood ring" introduced as the Mood Stone in the summer of 1975]] |
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A '''mood ring''' is a finger [[ring (jewelry)|ring]] that contains a [[thermochromism|thermochromic]] element, or "mood stone" that changes colors based |
A '''mood ring''' is a finger [[ring (jewelry)|ring]] that contains a [[thermochromism|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 peripheral blood flow. A mood ring contains [[liquid crystal|liquid crystals]] that change color depending on the temperature.<ref name="marechal">{{cite book |last1=Marechal |first1=Catherine |display-authors=etal |editor1-last=Kołodziej |editor1-first=Joanna |editor2-last=González-Vélez |editor2-first=Horacio |title=High-Performance Modelling and Simulation for Big Data Applications |date=2019 |isbn=978-3-030-16272-6 |page=308 |chapter=Survey on AI-Based Multimodal Methods for Emotion Detection|publisher=Springer }}</ref> |
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== History == |
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The idea to use thermosensitive elements in jewelry first arose from the [[United States|American]] [[Jewellery|jeweler]] Marvin Wernick in 1974 after reading a magazine article about the use of liquid crystal elements in medical thermometers.{{sfn|Shook|1982|pp=423}} He found a compound that changed color from black to green, blue and deep blue in the range of 32–38 °C and in January 1975 developed a technique for using it in pendants and rings.{{sfn|Shook|1982|pp=423}} Sales began in February. Wernick called the jewelry "magical", and his promotional materials claimed that the color of the pendant or ring is an indicator of the warmth of the wearer's character.{{sfn|Shook|1982|p=44}} Since Wernick did not patent the invention, other jewelers adopted the idea and began to produce their thermosensitive jewelry. Soon someone came up with a successful term "mood ring", which was quickly adopted by all manufacturers, including Wernick.{{sfn|Shook|1982|p=45}} |
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{{unreferenced section|date=October 2021}} |
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The original mood stone was a quartz crystal oval [[cabochon]] treated with heat sensitive ([[thermochromic]]) liquid crystal material. The mood stone ring was made of sterling silver or [[vermeil]] (gold-gilded sterling), whereas the majority of mood rings were based on base metals, such as copper. Changes in peripheral blood flow (thus finger temperature) cause the liquid crystal to reflect different wavelengths of light which changes the color of the stone. The liquid crystal used in the original mood stone ring was engineered to display a range of 7 distinct colors spanning over a 20 degree Fahrenheit temperature range. A black stone reflects cold hands. As finger temperature warms, with more blood flow to the extremities, the mood stone's color progresses from brown to yellow to light green to dark green to light blue to dark. |
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Important producers of "mood rings" were Joshua Reynolds and Maris Ambats; many sources credit them as their inventor.{{sfn|Sagert|2007|p=126}} Reynolds called the rings "a real biofeedback tool" that allows a person to get additional information about their body.{{sfn|Sagert|2007|p=126}} In December 1975 the total value of the rings sold reached $15 million.{{sfn|Sagert|2007|p=127}} However, in mid-December, the demand for rings suddenly fell as the market was oversaturated, and companies that did not have time to sell rings suffered losses.{{sfn|Shook|1982|pp=47-48}} After a couple of years, "mood rings" went out of fashion.{{sfn|Sagert|2007|p=127}} |
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==See also== |
==See also== |
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*[[Biorhythm (pseudoscience)]] |
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*[[Liquid crystal thermometer]] |
*[[Liquid crystal thermometer]] |
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*[[Methods of divination]] |
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==References== |
==References== |
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{{Reflist}} |
{{Reflist}} |
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==Sources== |
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* {{cite book |last=Sagert |first=K. B. |date=2007 |title=The 1970s |chapter=Fads: Mood Rings |chapter-url=https://books.google.com/books?id=SzGfma0m6bwC&pg=PA126 |location= |publisher= Greenwood Press|page=126—127 |isbn=978-0313339196 }} |
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* {{cite book |last=Shook |first=R. L. |date=1982 |title=The Mood Ring |chapter= Why didn't I think of that! |url=https://books.google.com/books?id=7h4XS2x5KMAC&q=mood+ring |location= |publisher= New American Library|page=38—49 |isbn=0453004199 }} |
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{{DEFAULTSORT:Mood Ring}} |
{{DEFAULTSORT:Mood Ring}} |
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Latest revision as of 17:07, 17 December 2024
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 peripheral blood flow. A mood ring contains liquid crystals that change color depending on the temperature.[1]
History
[edit]The idea to use thermosensitive elements in jewelry first arose from the American jeweler Marvin Wernick in 1974 after reading a magazine article about the use of liquid crystal elements in medical thermometers.[2] He found a compound that changed color from black to green, blue and deep blue in the range of 32–38 °C and in January 1975 developed a technique for using it in pendants and rings.[2] Sales began in February. Wernick called the jewelry "magical", and his promotional materials claimed that the color of the pendant or ring is an indicator of the warmth of the wearer's character.[3] Since Wernick did not patent the invention, other jewelers adopted the idea and began to produce their thermosensitive jewelry. Soon someone came up with a successful term "mood ring", which was quickly adopted by all manufacturers, including Wernick.[4]
Important producers of "mood rings" were Joshua Reynolds and Maris Ambats; many sources credit them as their inventor.[5] Reynolds called the rings "a real biofeedback tool" that allows a person to get additional information about their body.[5] In December 1975 the total value of the rings sold reached $15 million.[6] However, in mid-December, the demand for rings suddenly fell as the market was oversaturated, and companies that did not have time to sell rings suffered losses.[7] After a couple of years, "mood rings" went out of fashion.[6]
See also
[edit]References
[edit]- ^ Marechal, Catherine; et al. (2019). "Survey on AI-Based Multimodal Methods for Emotion Detection". In Kołodziej, Joanna; González-Vélez, Horacio (eds.). High-Performance Modelling and Simulation for Big Data Applications. Springer. p. 308. ISBN 978-3-030-16272-6.
- ^ a b Shook 1982, pp. 423.
- ^ Shook 1982, p. 44.
- ^ Shook 1982, p. 45.
- ^ a b Sagert 2007, p. 126.
- ^ a b Sagert 2007, p. 127.
- ^ Shook 1982, pp. 47–48.
Sources
[edit]- Sagert, K. B. (2007). "Fads: Mood Rings". The 1970s. Greenwood Press. p. 126—127. ISBN 978-0313339196.
- Shook, R. L. (1982). "Why didn't I think of that!". The Mood Ring. New American Library. p. 38—49. ISBN 0453004199.