Talk:Mood ring

Factual error

In the article it states that "the average human skin temperature [...] is approximately 98.6 °F (37.0 °C)", which already sounds fishy, but even the linked source says that "The normal temperature of skin is about 33 °C or 91 °F." So, I don't know if I should just change the temperature values in the sentence or what. Apoyon (talk) 13:55, 7 April 2010 (UTC)

98.6 Fahrenheit was the conventional commonly-accepted value for human body temperature in English-speaking countries for decades (including when the mood ring first came out). Not sure if an average skin temperature is very meaningful, since it would depend strongly on the surroundings (environment)... AnonMoos (talk) 18:42, 7 April 2010 (UTC)

Average body temperature is 36.6 °C (measured under arm) to 37 °C (measured in rectum). Skin on fingers can not be much cooler than 36 °C (you'd feel nerves refusing to work under 35), but due to slow heat transport in skin, fast in metal, and quite fast from metal to air (due to quite large contact area) I can believe skin on finger can heat the ring only up to 33 °C. It depends, however, on ring's material and shape. Any value from 30 to 36 °C seems possible average for some ring.

For what it's worth, the thermometer on my wristwatch reads 30.2 °C right now (in a room where the air is 20-ish), and it's not rare for it to go below 25 °C when I'm outside in coldish weather. --A. di M. (talk) 20:49, 7 March 2011 (UTC)

It's likely that a ring would have an even larger range because the fraction of it's surface that's in contact with the skin is much less than a wristwatch - and fingers tend to be cooler than more chunky bits of the body. However, all that matters is that the range it produces is significant compared to the range of possible healthy body temperatures. If so, then the ambient room temperature is by far more important than any possible variation in body temperature due to mood changes...which means that (surprise, surprise) these things don't work. SteveBaker (talk) 01:41, 8 March 2011 (UTC)

Agree with Apoyon following the relevant information on hypertextbook (and using discretion to weed out the less-relevant entries on that page), including "With normal clothing in a room at 15-20 °C, mean skin temperature is 32-35°C." Given the hands are not usually 'clothed', they could be expected to be a bit cooler than (say) the groin, although the presence of the ring would provide some 'protection' from the cooler ambient air. Then again, most rooms would be set to about 20 to 25 °C for comfort (if practicable), not 15 to 20 °C. I have amended the number to show 'roughly' 34 °C. A range could also be stated, but 37 °C is core body temperature and clearly incorrect for typical skin temperature, as mentioned above. Any further changes should be supported with reliable citation(s).

—DIV (120.17.3.67 (talk) 14:07, 19 May 2017 (UTC))

Price in the past

ME AND MY SISTERS ALL HAD MOOD RINGS IN THE EARLY 70'S AND WE NEVER PAID MORE THAN $5.00 TO $8.00 FOR THEM. THEY WERE never $45.00 IN THOSE DAYS. MAYBE IF HALF OF YOU WERE ALIVE THEN YOU WOULD KNOW NOT TO JUST ARBITRARILY REPEAT WHAT YOU HAVE READ SOMEWHERE ELSE ON THE WEB. — Preceding unsigned comment added by 98.239.250.100 (talk) 02:36, 17 October 2013 (UTC)

I have to second this; I had one as early as '74 and they were cheap at that time. They had to come along prior to '75. I would put the date around '73 at the latest. They were fads for the average person. Any of them sold at a jewelry store for over $40 had to come along later, not earlier. — Preceding unsigned comment added by 184.0.121.254 (talk) 03:50, 15 August 2016 (UTC)

The problem is that we need a reliable source or piece of media that can prove it. Hextor26 (talk) 22:20, 31 October 2021 (UTC)

Mood rings

Actual experiences. 108.203.149.93 (talk) 00:39, 22 September 2018 (UTC)My name is Shelby Largent. I am 67 years old. I would challenge your article about the time mood rings where first used. In 1963 we had mood rings. I am not sure when they were first invented but long before 1975. It was quite a unique thing at the time.

Shelby Largent

Can you provide a reliable source? DonIago (talk) 13:43, 24 September 2018 (UTC)

Unsourced material

Below content was tagged for needing sources long-term. Feel free to reinsert with appropriate references. DonIago (talk) 13:23, 8 April 2022 (UTC)

Properties

==Properties== 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 used base metals, such as copper. Changes in peripheral blood flow (thus finger temperature) caused the liquid crystal to reflect different wavelengths of light, which change the color of the stone. The liquid crystal used in the original mood stone ring was engineered to display a range of seven distinct colors spanning a 20 °F (11 °C) temperature range. A black stone indicated cold hands. As finger temperature warmed, with more blood flowing to the extremities, the mood stone's color progressed from brown through yellow, light green, dark green and light blue to dark blue.

History?

Whats the history of mood rings? (for the article) Inventor? Company?

~~Ted~~ 2607:FEA8:4A2:4100:AD3B:1C68:D290:AD61 (talk) 04:02, 31 March 2023 (UTC)