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Code Number: 6H35.53
Demo Title: Polarization - Butterfly & Cube - Selenite Designs
Condition: Excellent
Principle: Polarization of Light & Birefringence
Area of Study: Optics, E & M
Equipment:
Polarizers on the overhead, selenite designs.
Procedure:
Place the Polaroids on the overhead and turn so that no light is transmitted. Place the designs between the Polaroids and turn until the figure is recognizable.
References:
- Jerry Saxon, "The Beauty of Physics", TPT, Vol. 33, # 3, p. 146, March 1995.
- Paul Changnon, "Animated Displays IV: Linear Polarization", TPT, Vol. 31, # 8, Nov. 1993, p. 489 and referenced in Resource Letter TLC-1 Teaching Light and Color, Demonstration Experiments Resource Articles.
- Aaron D. Slepkov, "Painting in Polarization", AJP, Vol. 90, #8, Aug. 2022, p. 617.
- Thomas B. Greenslade, Jr., "Polarization Specimens (photo)", AJP, Vol. 76, # 4 & # 5, April/May 2008, p. 473.