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Description
- Overview:
- In this optics activity, learners discover that when they rotate a special black and white pattern called a Benham's Disk, it produces the illusion of colored rings. Learners experiment with the speed of rotation and direction of rotation to observe varying patterns. Use this activity to explain to learners how our eyes detect color and how different color receptors in the eye respond at different rates.
- Subject:
- Physics
- Level:
- Lower Primary, Upper Primary, Middle School, High School
- Material Type:
- Activity/Lab
- Author:
- California Department of Education, Don Rathjen, National Science Foundation, NEC Foundation of America, The Exploratorium
- Provider:
- Exploratorium
- Provider Set:
- Science Snacks
- Date Added:
- 10/31/2012
- License:
-
Creative Commons Attribution Non-Commercial Share Alike
- Language:
- English
- Media Format:
- Text/HTML
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Does this source present adulthood as the sole perspective, standard or norm?
This resource does a good job of using pictures of different age groups, genders and perhaps race/ethnicity. The images give a positive identity to older and younger people as engineers who can build examples to explore phenomenon.
However, the resource does not mention the original research of the phenomenon of color illusion, which is attributed to German physicists Gustav Fechner and Hermann von Helmholtz but also was influenced by an American woman psychologist Florence Winger Bagley.
This resource could be remixed to include a better historical component to represent the research and science of the phenomenon.