When the resistor heats up, the liquid crystal also heats up and changes color. The resistor is surrounded by thermochromic liquid crystal. Here's how it works: When you press the necessary spots on the battery to confirm it's still good, it completes a circuit involving a low voltage electric resistor and the power from the battery. the ones with the little strip that changed from black to green if the battery has a charge. The same technology is even used in self-testing batteries. When the liquid crystal begins to heat up, the molecular structure of the crystal rearranges and (depending on the orientation of the molecules) reflects back light of a certain wavelength. The 'secret' ingredient in this thermal reaction is a thermochromic liquid crystal.Д«asically, when the thermochromic liquid crystal is cool, it absorbs all color wavelengths. In fact, you have probably seen these plastic strip thermometers on the sides of aquariums either at your home in your local pet store. Marvin Wernick got the idea when he saw a thermometer made out of a thin strip of plastic that changed colors depending on the temperature of the forehead, or whatever other part of the body the plastic strip was placed on.ДЄlthough the medical industry have since moved on to faster and more accurate forms of measuring body heat, this color-changing technology is still used used on many aquarium thermometers.

Mood rings were first invented in 1975 by a jeweler named Marvin Wernick. Next, I summarize the most common mood ring color meanings. On this page, I have tried to encapsulate how mood rings actually work with an easy to understand explanation. Do you have a mood ring and wondering what the colors mean?

Mood ring color meanings