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Most people in our society use computer technology every day, and depend upon it (for government and tax records, banking, medical records, etc.), even if they never touch a computer themselves. However, very few people have a good understanding of how the technology works. This lesson demonstrates some very simple science behind a complex device, the color computer monitor.
The activity was inspired by the Viewpoints article "The Computer as a Materials Science Benchmarks"(1). In the description of how advances in materials chemistry have led to our ability to visualize information through the computer, there is a note describing how to see the red, blue, and green contributions to each pixel using a magnifying glass.
This actvity sheet is available as a PDF file. You will need to download Acrobat Reader to be able to read this file.
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