Making a Liquid Crystal Thermometer
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Abstract
Liquid crystals are matter that has properties between those of a liquid and a solid. Liquid crystals may flow like a liquid but have crystals like a solid.colors of the objects are Color is the outcome of various light properties: absorption, refraction, or reflection. In the case of liquid crystals, the reflection and refraction takes place from the nanosize helices. As the stimulus changes (temperature, humidity, etc.) the pitch of the helix changes and so does the reflection. These helices are actually stacks of layers of liquid crystals that rotate in response to temperature. This lesson explores the temperature response of liquid crystals.
Credits
Developed by the Georgia Institute of Technology NNIN RET Program.
Sponsored by
This lesson was developed with support of the National Science Foundation, NNIN and the NNIN RET Program.
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Submitter
NNCI Education and Outreach, Georgia Institute of Technology, Atlanta, GA