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Peer reviewed Peer reviewed
Cardon, Bartley L. – American Journal of Physics, 1977
Discusses a photograph of an unusual combination of lunar halos: the 22-degree refraction halo, the circumscribed halo, and a reflection halo. Deduces the form and orientations of the ice crystals responsible for the observed halo features. (MLH)
Descriptors: Astronomy, College Science, Higher Education, Instructional Materials
Peer reviewed Peer reviewed
Zeilik, Michael, II – American Journal of Physics, 1973
Discusses the use of a horoscope-casting laboratory exercise in the astronomy course. Indicates that students can fulfill three objectives: (1) summarize the planetary motions in the geometric universe, (2) be familiar with sidereal and solar time, and (3) be acquainted with the uses ephemerides. (CC)
Descriptors: Astronomy, College Science, Curiosity, Earth Science