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ERIC Number: EJ1013024
Record Type: Journal
Publication Date: 2013-Mar
Pages: 3
Abstractor: As Provided
Reference Count: 16
ISSN: ISSN-0021-9584
Two Simple Classroom Demonstrations for Scanning Probe Microscopy Based on a Macroscopic Analogy
Hajkova, Zdenka; Fejfar, Antonin; Smejkal, Petr
Journal of Chemical Education, v90 n3 p361-363 Mar 2013
This article describes two simple classroom demonstrations that illustrate the principles of scanning probe microscopy (SPM) based on a macroscopic analogy. The analogy features the bumps in an egg carton to represent the atoms on a chemical surface and a probe that can be represented by a dwarf statue (illustrating an origin of the prefix "nano"), a plastic bottle, or a glass. The demonstrations allow students to visualize certain physical aspects of SPM, such as probing "hilly" atoms on a surface using changes in distance between probe and atoms. Both demonstrations are appropriate to introduce SPM into high school or undergraduate science education. (Contains 3 figures.)
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: High Schools; Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A