- importsource = "00029505-2012-03.txt"
- Artículo:
Resource Letter PhD-2: Physics Demonstrations
- Autor:
Richard E. Berg
- Resumen:
This Resource Letter provides a guide to physics demonstrations, computer simulations of physics demonstrations, and physics education research regarding the use and effectiveness of demonstrations and simulations. Articles, books, and materials on the internet are cited for the following: professional journals dealing with demonstrations, web sites of professional organizations, workshops including use of demonstrations and simulations, books dealing with demonstrations in classroom teaching as well as informal settings, web sites for physics demonstrations, videos of physics demonstrations, demonstration simulations, and physics education research regarding the use of demonstrations in teaching.
- Página:
181
- Publicación:
American Journal of Physics
- Volúmen:
80
- Número:
3
- Periodo:
marzo 2012
- ISSN:
00029505
- SrcID:
00029505-2012-03.txt
- Documento número 25400
- Actualizado el martes, 23 de mayo de 2017 03:30:01 p. m.
- Creado el martes, 23 de mayo de 2017 03:30:01 p. m.
- Enlace directo
- Artículo:
Experiments with a Malkus–Lorenz water wheel: Chaos and Synchronization
- Autor:
Lucas Illing
Rachel F. Fordyce
Alison M. Saunders
- Resumen:
We describe an experimental implementation of the Malkus–Lorenz water wheel. We demonstrate that both chaotic and periodic behavior is observed as wheel parameters are changed in agreement with predictions from the Lorenz model. We further show that when the measured angular velocity of the water wheel is used as an input signal to a computer model implementing the Lorenz equations, high-quality synchronization of the model and the water wheel is achieved in the chaotic regime. This indicates that the Lorenz equations provide a good description of the water wheel dynamics.
- Página:
192
- Publicación:
American Journal of Physics
- Volúmen:
80
- Número:
3
- Periodo:
marzo 2012
- ISSN:
00029505
- SrcID:
00029505-2012-03.txt
- Documento número 25401
- Actualizado el martes, 23 de mayo de 2017 03:30:01 p. m.
- Creado el martes, 23 de mayo de 2017 03:30:01 p. m.
- Enlace directo
- Artículo:
Embeddings and time evolution of the Schwarzschild wormhole
- Autor:
Peter Collas
David Klein
- Resumen:
We show how to embed spacelike slices of the Schwarzschild wormhole (or Einstein-Rosen bridge) in 3. Graphical images of embeddings are given, including depictions of the dynamics of this nontraversable wormhole at constant Kruskal times up to and beyond the “pinching off” at Kruskal times ±1.
- Página:
203
- Publicación:
American Journal of Physics
- Volúmen:
80
- Número:
3
- Periodo:
marzo 2012
- ISSN:
00029505
- SrcID:
00029505-2012-03.txt
- Documento número 25402
- Actualizado el martes, 23 de mayo de 2017 03:30:01 p. m.
- Creado el martes, 23 de mayo de 2017 03:30:01 p. m.
- Enlace directo
- Artículo:
A low-cost spatial light modulator for use in undergraduate and graduate optics labs
- Autor:
Derek Huang
Henry Timmers
Adam Roberts
- Resumen:
Spatial light modulators (SLMs) are a versatile tool for teaching optics, but the cost associated with an SLM setup prevents its adoption in many undergraduate and graduate optics labs. We describe a simple method for creating a low-cost SLM by extracting components from a commercial LCD projector. We demonstrate the pedagogical applications of this SLM design by providing examples of its use in teaching diffraction and interference phenomena. We also discuss an SLM’s potential as a research tool in graduate labs. In particular, we demonstrate its use in holography and in the generation of optical vortices.
- Página:
211
- Publicación:
American Journal of Physics
- Volúmen:
80
- Número:
3
- Periodo:
marzo 2012
- ISSN:
00029505
- SrcID:
00029505-2012-03.txt
- Documento número 25403
- Actualizado el martes, 23 de mayo de 2017 03:30:01 p. m.
- Creado el martes, 23 de mayo de 2017 03:30:01 p. m.
- Enlace directo
- Artículo:
Quantitative investigation of Fresnel reflection coefficients by polarimetry
- Autor:
Ertan Salik
- Resumen:
The phase shift that occurs upon reflection from a dielectric surface is an interesting yet elusive topic in undergraduate and graduate level optics courses. Many students learn the Fresnel equations, which describe the theory of reflection-induced phase shifts, but there are few experiments which enable direct measurements of these phase shifts. We describe several experiments based on polarimetry to measure the differential phase shifts which occur upon reflection from dielectric–dielectric interfaces. Comparison of the experimental results with the theory given in optics textbooks reveals apparent inconsistencies, which can be resolved by taking into account various conventions.
- Página:
216
- Publicación:
American Journal of Physics
- Volúmen:
80
- Número:
3
- Periodo:
marzo 2012
- ISSN:
00029505
- SrcID:
00029505-2012-03.txt
- Documento número 25404
- Actualizado el martes, 23 de mayo de 2017 03:30:01 p. m.
- Creado el martes, 23 de mayo de 2017 03:30:01 p. m.
- Enlace directo