Recent Compadre Portal Releases
http://www.compadre.org/portal/
The latest Compadre Portal features, resource additions, and announcements.en-USCopyright 2015, ComPADRE.orgwebmaster@compadre.org (Managing Editor)Sat, 05 Sep 2015 12:17:51 ESThttp://blogs.law.harvard.edu/tech/rsshttp://www.compadre.org/portal/services/images/LogoSmallPortal.gifCompadre Portal
http://www.compadre.org/portal/
125353D Simulations of Interacting ParticlesAt the Institute for Science Education, a simulation program named xyZET has been developed and combined with an introductory course in mechanics to demonstrate its usefulness in teaching and learning physics. One of its distinct features enables the visualization of the movement of interacting particles in 3D. It adds value to teaching and learning complex processes, where visualization can help reduce cognitive load. The program can be used during lectures, where a simulation can often speak for itself in place of verbal explanation. The program also supports the development of exercise material for individualized learning. Such material in the form of Web pages can be combined with xyZET simulations, controlled by applets. Its basic features are discussed.Mon, 31 Aug 2015 14:46:53 EST3D Simulations of Interacting ParticlesAt the Institute for Science Education, a simulation program named xyZET has been developed and combined with an introductory course in mechanics to demonstrate its usefulness in teaching and learning physics. One of its distinct features enables the visualization of the movement of interacting particles in 3D. It adds value to teaching and learning complex processes, where visualization can help reduce cognitive load. The program can be used during lectures, where a simulation can often speak for itself in place of verbal explanation. The program also supports the development of exercise material for individualized learning. Such material in the form of Web pages can be combined with xyZET simulations, controlled by applets. Its basic features are discussed.Mon, 31 Aug 2015 14:46:20 ESTSomething Wonderful This Way Comes [Bootable Cluster CD]Clusters dedicated exclusively for educational purposes are rare, yet most educational institutions have an abundance of PC and Macintosh laboratories. The suggestive name bootable cluster CD (BCCD) offers hope. Indeed, at the BCCD's core is a bootable image that runs completely off dedicated media, which lets us use the BCCD to convert, within minutes, practically any room of Intel- or PowerPC-based workstations into a potent parallel computing environment. What we have here is a comprehensive framework for high-performance computing education, and that, my friends, is the opposite of a failure to communicate. This article elaborates on what lies under the BCCD hood, some uses of the BCCD, and future directions.Mon, 31 Aug 2015 14:41:19 ESTPASCOPASCO offers a comprehensive inventory of physics laboraty apparatus, and a variety of interfaces and sensors bundled with computer based curriculum for Chemistry, Biology, Physics and General Science.Mon, 31 Aug 2015 12:08:03 ESTQuilt JS Package: Time Evolution of a Wave FunctionThe QuILT JavaScript package contains exercises for the teaching of time evolution of wave functions in quantum mechanics. The file contains ready-to-run JavaScript simulations and a set of curricular materials. The material presents a computer-based tutorial on the "Time Evolution of the Wave Function." This package is one of the recently developed computer-based tutorials that have resulted from the collaboration of the Quantum Interactive Learning Tutorials (QuILT) project and the Open Source Physics (OSP) project. <br /><br />Other Java and JavaScript packages for teaching Quantum Mechanics are also available. They can be found by searching ComPADRE for QuILT or Quantum Mechanics.
http://www.compadre.org/profiles/Quilt_sm.jpg
Tue, 25 Aug 2015 20:03:34 ESTSoftware Carpentry: Getting Scientists to Write Better Code by Making Them More ProductiveThis article describes a one-semester course that teaches scientists and engineers the most important aspects of modern software development. This course has shown a significant increase in the efficiency of the students in computational work. Topics include the importance of version control, testing, scripting languages, and collaborative software development. The course focuses on small-scale and immediately practical issues.Tue, 25 Aug 2015 18:33:38 ESTComputational Physics Education with PythonEducators at an institution in Germany have started using Python to teach computational physics. The author describes how graphical visualizations also play an important role, which he illustrates here with a few simple examples.Tue, 25 Aug 2015 18:10:20 ESTVPython: 3D interactive scientific graphics for studentsThis article introduces the features of VPython, a package for programming and displaying interactive 3D graphics. Beginning students without prior programming experience have used VPython to write programs with real time 3D visualizations of mechanical systems. Developed at Carnegie Mellon University, VPython is part of an effort to develop a more modern first-year physics curriculum.Tue, 25 Aug 2015 17:59:41 ESTWhy Computer Architecture MattersThis is the first of a three-part series of articles on improving the computational efficiency of numerical algorithms. The authors present the implementation of a simple but computationally intensive algorithm and show how a series of incremental refinements to the code yields significant performance gains.<br /><br />In this first installment, the focus is on instruction selection and scheduling.Tue, 25 Aug 2015 17:53:56 ESTThe Verlet AlgorithmThis Mathematica Notebook presents the Verlet Algorithm for integrating second order differential equations. This is an improvement on the Euler method because it better conserves energy for mechanical systems.Tue, 25 Aug 2015 17:33:47 ESTThe trouble with numerical derivativesThis Mathematica Notebook explores the effect of noise in data when performing numerical analysis. The numerical derivative of a set of data is always less smooth than the data itself because any noise is magnified by the derivative. Ways to improve the analysis are also illustrated.Tue, 25 Aug 2015 17:15:27 ESTWave Packet ScatteringThis Mathematica Notebook illustrates the computation of time dependent wave packet scattering from square wells. The calculation is done for one dimensional systems.<br /><br />This notebook includes code only, and does not include information about either the calculation or the physical system. Users will need some familiarity with Mathematica code.Tue, 25 Aug 2015 17:00:46 ESTEvaluation MonitorsThis brief tutorial illustrates Mathematica Tools that monitor the intermediate steps in computations. EvaluationMonitor and StepMonitor are options for many of Mathematica's numerical functions and are excellent ways of tracking the performance of an ODE solver. Included is introductions to the functions Sow and Reap.Tue, 25 Aug 2015 11:21:06 ESTSolutions Manual for Numerical Solutions to the Schrödinger EquationThis Mathematica notebook contains solutions to several numerical problems and exercises in quantum mechanics. Topics include the shooting method, wavepacket dynamics, probability functions, and the Laplace equation. All of the problems are in one dimension, to help students focus on the physics of quantum systems.
http://www.compadre.org/profiles/QuantumMath.jpg
Tue, 25 Aug 2015 11:12:08 ESTSolutions Manual for Numerical Solutions to the Schrödinger EquationThis Mathematica notebook contains solutions to several numerical problems and exercises in quantum mechanics. Topics include the shooting method, wavepacket dynamics, probability functions, and the Laplace equation. All of the problems are in one dimension, to help students focus on the physics of quantum systems.
http://www.compadre.org/profiles/QuantumMath.jpg
Tue, 25 Aug 2015 11:11:07 ESTNumerical Solutions to the Schrödinger EquationThis Mathematica notebook provides an introduction to a number of computational techniques for solving quantum mechanics problems. It focuses on one-dimensional problems that allow the student to learn the basics of quantum mechanics and to develop a quantum intuition without some of the mathematical complexities present in three-dimensions.
http://www.compadre.org/profiles/QM-CompNb.jpg
Tue, 25 Aug 2015 11:09:32 ESTNumerical Methods for Physics, 2nd Ed.Numerical Methods for Physics is an upper-division/graduate level textbook on computational physics. The book's website provides errata, additional exercises, and information on the book's programs.
http://www.compadre.org/profiles/NumericalMethodsForPhysics1.JPG
Tue, 25 Aug 2015 11:02:30 ESTNumerical Methods for Physics, 2nd Ed.Numerical Methods for Physics is an upper-division/graduate level textbook on computational physics. The book's website provides errata, additional exercises, and information on the book's programs.
http://www.compadre.org/profiles/NumericalMethodsForPhysics1.JPG
Tue, 25 Aug 2015 11:00:47 ESTJOpticsThis website contains an ensemble of resources and java applets for teaching university level Physical Optics as part of physics or optics and optometry studies. Some of the resources can also be used by high school teachers or students to illustrate and broaden knowledge on some aspects of optical physics at this teaching level. The resources may be used either in an ordinary course as support material or as the main working tool in an on-line Internet course.
http://www.compadre.org/profiles/eyeIcon.gif
Tue, 25 Aug 2015 10:55:34 ESTJOpticsThis website contains an ensemble of resources and java applets for teaching university level Physical Optics as part of physics or optics and optometry studies. Some of the resources can also be used by high school teachers or students to illustrate and broaden knowledge on some aspects of optical physics at this teaching level. The resources may be used either in an ordinary course as support material or as the main working tool in an on-line Internet course.
http://www.compadre.org/profiles/eyeIcon.gif
Tue, 25 Aug 2015 10:55:06 ESTJOpticsThis website contains an ensemble of resources and java applets for teaching university level Physical Optics as part of physics or optics and optometry studies. Some of the resources can also be used by high school teachers or students to illustrate and broaden knowledge on some aspects of optical physics at this teaching level. The resources may be used either in an ordinary course as support material or as the main working tool in an on-line Internet course.
http://www.compadre.org/profiles/eyeIcon.gif
Tue, 25 Aug 2015 10:54:38 ESTJOpticsThis website contains an ensemble of resources and java applets for teaching university level Physical Optics as part of physics or optics and optometry studies. Some of the resources can also be used by high school teachers or students to illustrate and broaden knowledge on some aspects of optical physics at this teaching level. The resources may be used either in an ordinary course as support material or as the main working tool in an on-line Internet course.
http://www.compadre.org/profiles/eyeIcon.gif
Tue, 25 Aug 2015 10:54:11 ESTThe Quantum Mechanics of Two and Three Dimensional Nano-StructuresNano-science is one of the fastest growing fields in both physics and engineering. It is now possible to design and fabricate devices whose physical dimensions are on the nanometer scale and whose quantum properties can be tuned as desired. In this notebook we will study the quantum mechanics of what are known as reduced dimensional structures. A structure is said to have reduced dimensionality if one or more of the dimensions is on the order of the De Broglie wavelength of the particles confined to the structure. An ordinary wire for example, has no reduced dimensionality since both its length and its radius are large compared to the De Broglie wavelength of room temperature electrons.Tue, 25 Aug 2015 10:49:04 ESTThe Quantum Mechanics of Two and Three Dimensional Nano-StructuresNano-science is one of the fastest growing fields in both physics and engineering. It is now possible to design and fabricate devices whose physical dimensions are on the nanometer scale and whose quantum properties can be tuned as desired. In this notebook we will study the quantum mechanics of what are known as reduced dimensional structures. A structure is said to have reduced dimensionality if one or more of the dimensions is on the order of the De Broglie wavelength of the particles confined to the structure. An ordinary wire for example, has no reduced dimensionality since both its length and its radius are large compared to the De Broglie wavelength of room temperature electrons.Tue, 25 Aug 2015 10:48:42 ESTThe Quantum Mechanics of Two and Three Dimensional Nano-StructuresNano-science is one of the fastest growing fields in both physics and engineering. It is now possible to design and fabricate devices whose physical dimensions are on the nanometer scale and whose quantum properties can be tuned as desired. In this notebook we will study the quantum mechanics of what are known as reduced dimensional structures. A structure is said to have reduced dimensionality if one or more of the dimensions is on the order of the De Broglie wavelength of the particles confined to the structure. An ordinary wire for example, has no reduced dimensionality since both its length and its radius are large compared to the De Broglie wavelength of room temperature electrons.Tue, 25 Aug 2015 10:48:08 EST