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Circuit Construction Kit (AC+DC) - Circuits, Light Bulbs, Batteries

Circuit Construction Kit (AC+DC) - Circuits, Light Bulbs, Batteries
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Space Time Travel – Relativity Visualized Alternance jour-nuit et ensoleillement de la Terre L'animation permet de comprendre le phénomène des saisons. L'axe de rotation de la Terre n'étant pas perpendiculaire au plan de l'écliptique, selon la période de l'année, les rayons du Soleil n'arrivent pas de la même manière à la surface de la Terre : c'est le phénomène des saisons. Aux équinoxes, les rayons du Soleil sont parallèles au plan de l'équateur ; entre les équinoxes, ils sont au-dessus (printemps, été) ou en-dessous (automne, hiver), avec un angle maximum aux solstices : le soleil se positionne alors au-dessus d'un des tropiques (tropique du Cancer au solstice d'été, tropique du Capricorne au solstice d'hiver. La déclinaison solaire correspond à l'angle que font les rayons solaires avec le plan de l'équateur. La limite de l'ombre (un grand cercle de la Terre) oscille donc de part et d'autre de la position à l'équinoxe. Le petit soleil montre l'endroit de la Terre où le Soleil est au zénith à cet instant. Mode d'emploi Cliquer-glisser sur la sphère pour changer l'angle de vue.

Construire un atome - Structure atomique, Atomes, noyau atomique Contenu Atomes Structure atomique Isotope Symbols noyau atomique Description Construire un atome de protons, de neutrons et d'électrons, et voir comment l'élément, la charge et la masse changent. Echantillon d'objectifs d'apprentissage Utilisez le nombre de protons, de neutrons et d'électrons pour dessiner un modèle de l'atome, identifier l'élément, et déterminer la masse et la charge.Prédire comment l'addition ou la soustraction d'un proton, d'un neutron, ou d'un électron va changer l'élément, la charge et la masse.Utilisez le nom de l'élément, la masse et de charge pour déterminer le nombre de protons, de neutrons et d'électrons.Définir protons, neutrons, électrons, atomes, ions et.

CosmoLearning - Physics Physics 210: General Physics I Ce1 Du CP au CM2, de 6 à 11 ans les enfants sont en pleine construction. A l'école élémentaire, ils abordent les apprentissages fondamentaux : la lecture, l'écriture, les opérations mathématiques, etc. L'école doit être un lieu où les élèves apprennent également l'autonomie, un lieu d'éveil dédié à l'apprentissage, mais aussi un lieu qui éveille leur curiosité et leur apporte une ouverture d'esprit. L'école élémentaire est divisée en cycles : le cycle 2, (cycle des apprentissages fondamentaux) qui comprend le CP, le CE1 et le CE2 et le cycle 3 (cycle de consolidation) avec le CM1, le CM2 et la classe de sixième.

Problem of Reciprocity Back to main course page John D. Norton Department of History and Philosophy of Science University of Pittsburgh Background reading: J. Schwartz and M. What's the Problem? Relativity theory tells us that a moving clock is slowed down and a moving rod is shrunk in the direction of its motion. Each finds the other's clocks slowed and rods shrunk. The Car and the Garage That each finds the other's clocks slowed and rods shrunk is troubling. That perspectival effect should not worry anyone. Now image that we drive the car at 86.6% speed of light through the garage from right to left. Now this is a serious problem. More formally, we have a true paradox. It IS the case that car is fully trapped with in the garage. It is usually take to be a fatal problem when a theory is shown to harbor contradictions. Relativity of Simultaneity... ...Solves the Problem Both agree that the two events "left door shut" and "right door shut" happened.

Physics Simulation with Java Charges and Fields - Electric Charges, Electric Field, Electric Potential Topics Electric Field Electrostatics Equipotential Electrostatic Potential Electric Charges Voltage Description Arrange positive and negative charges in space and view the resulting electric field and electrostatic potential. Plot equipotential lines and discover their relationship to the electric field. Create models of dipoles, capacitors, and more! Sample Learning Goals Determine the variables that affect the strength and direction of the electric field for a static arrangement of charges.Investigate the variables that affect the strength of the electrostatic potential (voltage).Explain equipotential lines and compare them to the electric field lines.For an arrangement of static charges, predict the electric field lines.

QM Experiments for Undergraduates Textbook My book is titled Quantum Mechanics: Theory and Experiment, and is written for a junior/senior level quantum mechanics class. It is unique in that it describes not only quantum theory, but also presents laboratories that explore truly modern aspects of quantum mechanics. The book begins the presentation of quantum mechanics using photon polarization as a prototypical two-dimensional quantum system. It also has chapters describing quantum measurement, entanglement, quantum field theory and quantum information. You can order the book from the publisher, or from Amazon. Description Technology has advanced to the point where truly modern experiments which explore the fundamentals of quantum mechanics are accessible to undergraduates. Overview · Slides of a talk given at Amherst College in Oct. 2004. · Slides of a talk given at AAPT Meeting, July 2006. · Slides of a talk given at AAPT Meeting, July 2006. Experiments Proof of the Existence of Photons (the Grangier Experiment) [1] P. Links

Seminar: Visualizing Special Relativity The following text is that of a seminar presented to the ANU Physics Department on 25 September 1997. Note that the links to animations will not function. Animations may be downloaded elsewhere. Antony Searle Australian National University Distinguished Scholars Program Animations The Lorentz factor can be thought of as the degree of relativistic effects. An explanation of the Head-up Display: Aberration Animations: THE DOPPLER EFFECT Like sound, light undergoes frequency shifting when and observer moves at comparable speeds. where v is the velocity of the observer, a and n are the angle subtended and frequency of the photon in the rest frame, and n' is the frequency recorded by the moving observer The relativistic formula is similar, but corrected for time dilation Doppler Shift Animations: Headlight Effect Animations: Animations:

Maxwell's equations Quote So if Coulombs law works best for you, then use coulomb's law - there's no need to re-invent the wheel. As far as the original problem goes it is solved, but it uncovered great many things for me, so what is left now is curiosity because this solution implies Coulomb's and Biot-Savart law tell different and more complete story than Maxwell's equations and yet they are supposed to talk about the same E and B fields. There are two kinds of fields, "radial" like gravity and electric fields, and we have "rotational", like vortexes, whirlpools or magnetic fields. Uniform and constant "radial" field potentials have zero divergence and zero rotation (curl), it's a uniform magnitude distribution and inverse square law which defines topology and geometry of an electric field, not the other way around. This page here shows you how to get coulomb's law from maxwell's first equation: -- This page says: -"Gauss's law can be derived from Coulomb's law

Perspectives of Hans Bethe

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