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Articles: How Much Energy Does a Star Radiate? (526), Concepts in Force and Motion (530), Theaching Geometrical Optics with the "Optic Mirage" (534). Notes: A Demonstration of Car Braking Instabilities (522), Who Will Win the Race, II (537), The "Quicker-Picker-Upper" (548), Science Friction Adventure-Part II (533), Supernova Core Bounce: ADEmonstration (558).

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