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Euler, Manfred – Physics Education, 2008
A force spectroscopy model experiment is presented using a low-cost tensile apparatus described earlier. Force-extension measurements of twisted rubber bands are obtained. They exhibit a complex nonlinear elastic behaviour that resembles atomic force spectroscopy investigations of molecules of titin, a muscle protein. The model experiments open up…
Descriptors: Science Activities, Spectroscopy, Scientific Concepts, Science Instruction
Osterheider, Mattis; Bourdon, Bjoern; Boettcher, Rasmus; Beeken, Marco; Imlau, Mirco – Physics Education, 2022
Spectrometers play a decisive role in the education of A-level and/or under-graduate students in the field of natural sciences. They are capable to demonstrate atomic emission, transmission, reflection and fluorescence spectra, but can be used for wavelength filtering, as well. Here, we present a do-it-yourself spectrometer setup based on a…
Descriptors: Science Instruction, College Science, Secondary School Science, High School Students
Peer reviewed
Knott, R. G. A. – Physics Education, 1972
The approach generally used in writing undergraduate textbooks on Atomic and Nuclear Physics presents this branch as historical in nature. Describes the concepts of astrophysics, plasma physics and spectroscopy as contemporary and intriguing for modern scientists. (PS)
Descriptors: Atomic Theory, College Science, Nuclear Physics, Physics
Peer reviewed
Latimer, Colin J. – Physics Education, 1983
Discusses some lesser known examples of atomic phenomena to illustrate to students that the old quantum theory in its simplest (Bohr) form is not an antiquity but can still make an important contribution to understanding such phenomena. Topics include hydrogenic/non-hydrogenic spectra and atoms in strong electric and magnetic fields. (Author/JN)
Descriptors: College Science, Higher Education, Physics, Quantum Mechanics
Peer reviewed
Wynne, Brian – Physics Education, 1979
Discusses Barkla's part in the controversy around the J-phenomenon, and the different factors that contributed to the refutation of the phenomenon. (GA)
Descriptors: Atomic Structure, Atomic Theory, Higher Education, Light
Peer reviewed
Clarke, D. – Physics Education, 1975
Descriptors: Atomic Structure, College Science, Higher Education, Instruction
Peer reviewed
Poole, R. T. – Physics Education, 1983
Examines the physical basis for colors of noble metals (copper, silver, gold) developed from energy conservation/quantum mechanical view of free electron photoabsorption. Describes production of absorption edges produced by change in density of occupied valence electron states in the d-band, which allows stronger absorption in the visible photon…
Descriptors: Atomic Structure, College Science, Color, Energy