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Peer reviewedFabrikant, V. A. – Quantum, 1992
Discusses the energy flux-density of two beams of light of equal energy that are intersected at a given angle. Examines an apparent contradiction to the physics law of conservation of energy known as Vavilov's paradox. (MDH)
Descriptors: Elementary Secondary Education, Energy, Enrichment Activities, Learning Activities
Peer reviewedOtani, Robert; Siegel, Peter – Physics Teacher, 1991
Presents an experiment to demonstrate Charles's Law of Ideal Gases by creating a constant-pressure thermometer from materials that can be found in the kitchen. Discusses the underlying mathematical relationships and a step-by-step description of the experiment. (MDH)
Descriptors: Enrichment Activities, High Schools, Mathematical Formulas, Measurement
