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Direct linkLevesque, L. – European Journal of Physics, 2009
Images formed from light rays refracting a spherical surface are often introduced in textbooks using the paraxial approximation. Incoming rays propagating from the object meeting the surface of a transparent medium at a given point for which the angle is larger than 15 degrees with respect to the normal are not described accurately from the…
Descriptors: Textbooks, Optics, Computation, Experiments
Kraftmakher, Yaakov – European Journal of Physics, 2007
A student experiment on dynamic calorimetry is described. Dynamic calorimetry is a powerful technique for calorimetric studies, especially at high temperatures and pressures. A low-power incandescent lamp serves as the sample. The ScienceWorkshop data-acquisition system with DataStudio software from PASCO Scientific displays the results of the…
Descriptors: Heat, Scientific Concepts, Physics, Lighting
