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ERIC Number: EJ913302
Record Type: Journal
Publication Date: 2010-Mar
Pages: 5
Abstractor: As Provided
Reference Count: 11
ISSN: ISSN-0021-9584
The Pixel Paradox and Transition-Metal Spectroscopy: One of Many Uses of the Handheld Digital Microscope in Chemical Demonstrations
Vitz, Ed
Journal of Chemical Education, v87 n3 p275-279 Mar 2010
A handheld digital microscope (HDM) interfaced to a computer with a presentation projector is used to project an out-of-focus yellow patch on the screen, then the patch is brought into focus to show that, paradoxically, there are red and green but no yellow pixels. Chromaticity diagrams are used to discuss this observation and spectroscopic examples of additive mixing. Types of HDMs and other uses of these devices are described. (Contains 8 figures and 5 notes.)
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A