Articles: High-Speed Flas Photography with Sound Triggers (12), 2. Learning Cycles for a Large-Enrollment Class (20), Illuminating Physics with Light Bulbs (30), The Jerk (36). .Notes: Picking Up Penies (29), There Was a Professor from Troy (44), A Not-So-Obvious Pendulum Experiment (51). Departments: Editorial (10), Letters (6), AV Corner (54), Book Reviews (59), Information For Contributors (61).

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