This HTML5 app simulates an experiment for the determination of the Planck constant and the work function: A single spectral line is filtered out from the light of a mercury lamp. This light strikes the cathode (C) of a photoelectric cell and causes the emission of electrons (or not).
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This app shows a small part of the table of nuclids in which short notations like Th 232 (consisting of the chemical symbol and the mass number) are used for reasons of space. The number of protons is indicated at the left, the number of neutrons at the beginning of a column.
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This simulations allows to visualize the relation between hydrostatic pressure and depth. Students can raise or lower the manometer as well as select one of several liquids. They can also write the values of density and depth directly into the text fields
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A spaceship is flying a distance of 5 light hours, for example from Earth to the dwarf planet Pluto. The applet demonstrates that the clock in the spaceship goes more slowly than the two clocks of the system in which Earth and Pluto are motionless.
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This HTML5 app simulates a simple refracting astronomical (inverting) telescope, consisting of two lenses which are called the objective and the eyepiece (ocular).
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A ray of light coming from the top left strikes the boundary surface of two media. (It is possible to choose the substances in both lists.) The medium which has the bigger index of refraction is painted blue, the other yellow. You can vary the incident ray with pressed mouse button.
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This simulation deals with an electromagnetic oscillating circuit, consisting of a capacitor (center) and an inductor (i.e. a coil, on the right). The animation will be 10 or 100 times slower than the real oscillation, depending on the selected radio button.
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This HTML 5 app shows a simple circuit consisting of an alternating voltage source and, depending on the selected radio button, a resistor (without inductivity), a capacitor or an ideal coil (without resistance).
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This HTML5 app simulates a generator which is reduced to the most important parts for clarity.
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This HTML 5 app shows a direct current electrical motor which is reduced to the most important parts for clarity. Instead of an armature with many windings and iron nucleus there is only a single rectangular conductor loop; the axis the loop rotates on is omitted.
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