 CabriJava  JeanMarie Laugier; L'Université de Provence (AixMarseille I)
Optique, électicité, mécanique. CabriHop: Une série de constructions d'optique géométrique et physique, niveau lycée et un peu +, à visiter en premier pour les paramétrages de votre navigateur,
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 CERFACS  European Centre for Research and Advanced Training in Scientific Computation
CERFACS is one of the world's leading research institutes working on efficient algorithms for solving largescale scientific problems. This involves the evaluation of existing, and the development of new tools which exploit highperformance serial, vector,
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 E and M  Finzer, Berkelman, Bennett; Key Curriculum Press
Two sketches showing how to model force fields. One sketch models a capacitor, and the other shows the strength at various points of the field generated by two charged particles.
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 Electronics Library, Electronics Community
Thousands of links to R&D documents in electronics. Utilities, general electronics, components, circuits, digital signal processing, measuring, electromagnetics, electric effect, energy, communications, more on the Web. Community and forum.
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 From Galaxies to Electrons (Math Chat)  Frank Morgan, MAA Online
What are the largest and smallest objects anyone has ever seen with the naked eye? heard? felt? (For the first part, the whole object must be seen, though not necessarily in full detail or from every side.)
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 Mathematical and Computational Sciences  National Institute of Standards and Technology (NIST)
Part of the Information Technology Laboratory of the National Institute of Standards and Technology (NIST) (an agency of the Department of Commerce, U.S. Government), this was formerly CAML. Mathematicians of the Applied and Computational Mathematics
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 The Missed Physics of SourceFree Magnetic Fields  Bibhas R. De
This paper proposes a fundamentally new discovery in physics, suggesting that Maxwell's equations have another solution beyond the electromagnetic waves: The sourcefree static magnetic field structures. See also Source Free Magnetic Structures, a paper
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 Noga Alon
Noga Alon researches combinatorics, graph theory, their applications to theoretical computer science, combinatorial geometry and number theory, and the relationship of combinatorial algorithms and circuit complexity. Some of his papers, along with a
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 Toys from Trash  Arvind Gupta
Stepbystep photographic instructions for building elegantly simple, colorful "Math Magic" doityourself manipulatives: Abacus, Flexagon, Triangle Grid, Flat Flexagon, Slipper Insets, Folding Pentagon, Tangram, Paper Octagon, Cylinder and Cone, Area
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 Twistors  What Are They?  Fedja Hadrovic
Notes briefly introducing the basic definitions of twistor theory, which might provide an "elegant formalism for both general relativity and quantum theory. Roger Penrose was first led to the concept of twistors in his investigation of the structure of
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 VRML Gallery of Electromagnetism  Rob Salgado
A collection of VRML worlds that visualize the vector fields of electromagnetism. Subcategories: addition; wedge product; raising and lowering of indices; unit vectors; charged point (Coulomb); two charged points; charged dipole; charged sphere; charged
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 The Wavelet Tutorial  Robi Polikar
The engineer's ultimate guide to wavelet analysis: a tutorial that explains basics of signal processing with a focus on the technique of wavelet transformations (WT). Basic concepts of importance in understanding wavelet theory; Short Term Fourier Transform
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