The CADET Project Modification computer analysis, and both hard copy map-like images and computer tapes are available to the public. A mainframe computer program that permits an Apple microcomputer user to select a particular 40 by 40 pixel sub-scene from a Landsat computer compatible tape and download it to Apple computer diskette via telephone…

Describes a computerized method to test error analysis that helps motivate introductory physics students to learn the topic. The computer generates a test consisting of four topics from a list of 10 that students should know. Numerical data within realistic ranges are also generated. (JN)