Java applets

The following are links to all Java applets existing on this site:

• CyberCardiologist! Simulation of action potentials propagating on a two-dimensional surface, like the surface of the heart. Start abnormal spiral wave propagation patterns (in an attempt to kill the patient) and then try to stop them (saving the patient).

• Animation of the production of the Northern Lights caused by electron precipitation. This is not a simulation, by the way, since it make no attempt to realistically model the physics. In real life, the electrons are probably accelerated by parallel electric fields due to so-called "Alfvén waves." In this animation, the electrons are accelerated by a convenient and computationally expedient mathematical expression.

• Simulation of the two-stream instability. This one actually is a particle simulation. It displays what happens when two inter-penetrating plasma populations which are moving relative to each other act on each other through their respective electrostatic fields. Since this is a real particle simulation, and since Java is presently an interpreted, and therefore very slow, language, this simulation runs like molasses. If you wait long enough this simulation will produce vortex structures in the phase space displayed in the Java window.

• Solitaire card game. This applet allows you to manipulate the 52 cards of a standard deck. The cards are initially arranged for playing the solitaire card game Seahaven. There still appear to be some bugs in this applet, although I can't tell whether they are my fault.

• Cardiac rhythm model. This is a mathematical model we have been using to study electrical cardiac rhythms. The model duplicates many of the rhythm patterns seen in out experiments.

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