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Code Number: 6A44.10
Demo Title: Blackboard Optics - Total Internal Reflection
Condition: Excellent
Principle: Critical Angle and Total Internal Reflection
Area of Study: Optics
Equipment:
Blackboard Optics kit 12 VDC power supply, Dry Erase Blackboard on wheels.
Procedure:
The blackboard optics unit is pretty self explanatory, however there is a pamphlet on its use with the unit and in the file. Do Not run the power supply for the light bulb over 12 volts.
References:
- Jiwon Lee, "Revisiting A Surprising Demonstration of Total Internal Reflection", TPT, Vol. 54, #7, Oct. 2016, p. 410.
- Carlos E. Aguiar, Antonio C. F. Santos, Eric B. Lopes, and Walter S. Santos, "The Goldfish Over the Rainbow", TPT, Vol. 51, #9, Dec. 2013, p. 522.
- ZHU Yuhua, SHI Fengliang, "Why Does the Goldfish Disappear in the Fishbowl?", TPT, Vol. 47, # 7, Oct. 2009, p. 424.
- Mario Branca and Isabella Soletta, "Construction of Optical Elements with Gelatin", TPT, Vol. 41, # 4, Apr. 2003, p. 249.
- B.F. Melton, "A Surprising Demonstration of Total Internal Reflection", TPT, Vol. 29, #8, Nov. 1991, p. 539.
- Arthur Guertin and Douglas Giancoli, "What Causes Total Internal Reflection?", TPT, Vol. 21, #8, Nov. 1983, p. 539.
- Mark Davids, et al., "Finding the Critical Angle", Teaching about Lightwave Communications, 1994, p. 3 - 18.
- Jearl Walker, "6.138, Disappearing Coin", The Flying Circus of Physics Ed. 2, p. 300.
- Jearl Walker, "6.94, Diamonds", The Flying Circus of Physics Ed. 2, p. 279.
Video Credit: Jonathan M. Sullivan-Wood