4B30.53 - Heat Transfer - Liquid Crystal Indicator

Code Number:
4B30.53
Demo Title:
Heat Transfer - Liquid Crystal Indicator
Condition:
Good
Principle:
Conductivity
Area of Study:
Heat & Fluids
Equipment:
Copper Sheet with Attached Liquid Crystal Film, Insulated Cups with Holes for the Copper Sheet, Aluminum Plate with Attached Postcard Liquid Crystal, and Two Beakers.
Procedure:

Put cold water in one beaker and hot water in the other.  Insert the apparatus and observe the heat conduction from hot to cold with the liquid crystal.

References:
  • M. P. Strzys, S. Kapp, M. Thees, J. Kuhn, P. Lukowicz, P. Knierim, and A. Schmidt, "Augmenting the Thermal Flux Experiment: A Mixed Reality Approach with the HoloLens", TPT, Vol. 55, #6, Sept. 2017, p. 376. 
  • R. D. Edge, "Thermal Conductivity and Liquid Crystal Thermometers", TPT, Vol. 31, #7, Oct. 1993, p. 412.
  • Michael E. Bacon, R. M. WIck, and P. Hecking, "Heat, Light, and Videotapes: Experiments in Heat Conduction Using Liquid Crystal Film", AJP, Vol. 63, #4, Apr. 1995, p. 359.
  • Brian W. Dodson, Thomas L. Hunzeker, "A Quantitative Demonstration of Conductive Heat Transfer", AJP, Vol. 41, #2, Feb. 1973, p. 281
  •  Ashley G. Smart. "Laser Beam Remodels Liquid Crystals on the Fly", Physics Today, Vol. 68, #6, June 2015, p. 12.
  •  "H-395. Liquid Crystal - Hammer Blow", DICK and RAE Physics Demo Notebook, 1993.
  •  Robert Ehrlich, "I.7. Heat Conductivity Demonstration Using Thermostrips", Turning the World Inside Out and 174 Other Simple Physics Demonstrations, p. 119 - 120.


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