Benham’s Disk
Source Institutions
-
Twin Cities Public Television
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In this activity (on page 2 of the PDF), learners will see the illusion of colors produced by a rotating black and white image known as Benham’s Disk. They will experiment with rotation direction and speed to see if they can discern a relationship between the patterns and what colors they reproduce. Relates to the linked video, DragonflyTV GPS: Light and Color.
- 5 to 10 minutes
- 45 to 60 minutes
- $1 - $5 per group of students
- Ages 8 - 14
- Activity
- English
Quick Guide
Materials List (per group of students)
- posterboard or cardboard
- glue stick or other suitable adhesive
- pattern disk
- access to a copy machine
- a black marking pen
- a rotator, such as a portable electric drill
Subjects
- Life Sciences
- Human Body
- The Brain and Nervous System
- Human Senses and Perception
- Vision
- Perception
- Human Body
- Physical Sciences
- Light and Optics
- Sunlight and Color
- Vibration and Waves
- Light and Optics
- Light and Optics
- The Nature of Science
- The Scientific Process
- Conducting Investigations
- Formulating Explanations
- Communicating Results
- The Scientific Process
Audience
To use this activity, learners need to:
- see
- see color
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
Components that are part of this resource:
This resource is part of:
Access Rights:
- Free access
By:
Source Collection:
- DragonflyTV
Rights:
- All Rights Reserved, Twin Cities Public Television, Inc., ©2006
Funding Source:
- National Science Foundation, 515566
