Code Number: 6J11.20
Demo Title: Visual Fatigue & Afterimage
Condition: Good
Principle: Visual Fatigue
Area of Study: Optics, Human Biology
Equipment:
Construction Paper Flag Made Out of Green, Black, and Yellow, and "Hello, Red Fox" Book.
Procedure:
Stare at the flag without moving your eyes up to a minute. Now look at a white surface and you should see the flag in its normal red, white, and blue colors.
The book "Hello, Red Fox" has a collection of pictures that are the "wrong" color when viewed from the book but are the "right" color when the afterimage is observed.
References:
- Martin Gardner, "An Apparition", TPT, Vol. 36, #5, May 1998, p. 317.
- John W. Jewett Jr., "LED's and the 'Fluttering Heart' Phenomenon", TPT, Vol. 31, #3, Mar. 1993, p. 180.
- D. Rae Carpenter Jr. and Richard B. Minnix, "O-770. Retinal Fatigue-Color Illusion", DICK and RAE Physics Demo Notebook, 1993.
- Pat Murphy, Ellen Macaulay, and the staff of the Exploratorium, "Color", Exploratopia, p. 301.
- Paul Doherty and Don Rathjen, "Afterimage", The Cheshire Cat, p. 3.
- Paul Doherty and Don Rathjen, "Bird in the Cage", The Cheshire Cat, p. 17.
- Martin Gardner, "Ghost Penny", Entertaining Science Experiments with Everyday Objects, p. 36.
- Raymond Bruman and the Exploratorium Staff, "Recipe No. 38: Fading Dot", Exploratorium Cookbook I, p. 38-1 - 38-2.
- Raymond Bruman and the Exploratorium Staff, "Recipe No. 37: Afterimage", Exploratorium Cookbook I, p. 37-1.
- Raymond Bruman and the Exploratorium Staff, "Bird in the Cage", Exploratorium Cookbook I, p. 30.1.
- "Bird in the Cage", The Exploratorium Science Snackbook, p. 27.
- Jearl Walker, "7.15, Reading in the Dark", The Flying Circus of Physics Ed. 2, p. 311.
- Charles Taylor, "Demonstration 3.4", The Art and Science of Lecture Demonstration, p. 114.
- Janice VanCleave, "Negative Afterimage", Biology for Every Kid - 101 Easy Experiments That Really Work, p. 158 - 159.
- Eric Carle, "Hello, Red Fox", Simon & Schuster Books for Young Readers, 1998.
- T. D. Rossing and C. J. Chiaverina, "Afterimages", Light Science, Physics and Visual Arts, p. 185.
- Robert J. Brown, "Color Fatigue", 200 Illustrated Science Experiments for Children, p. 154 - 155.
- Martin Keen, "Experiments With Human Senses", Let's Experiment, 1968, p. 153 - 155.
- Don Herbert and Hy Ruchlis, "Your Senses", Mr. Wizard's 400 Experiments in Science, p. 9 - 12.
- Brenda Walpole, 175 Science Experiments to Amuse and Amaze Your Friends, p. 148 - 151.
- Jess Romeo, "The Original Illusions", Popular Science, Spring 2020, p. 114.
- Sara Stein, "The Illusion of Color", The Science Book, p. 202.