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Full version, free for use in Education settings.

Features:

• range of sources, inlcuding doppler
• a range of models, including refraction, lenses and the earth
• variable refractive index for most models
• a range of tools for measuring, visualising and recording waves
• pause button and clipboard/save buttons
• a button to clear ripples and a drip button

 

 

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Full version, realtime simulation of magnets and their feilds.

Features:

• bar magnets, wires and coils
• range of visualisations, including field lines and iron filings
• buttons to save to clipboard or to a file
• movement of magnets and motors is simulated

 

 

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The simulation is the same size as the full version.

Features:

• a beam source (four otheres in full version)
• a model of a simple block (nine others in full version)
• block has fixed refractive index (models in full version are controllable )
• no tools or loggers (eight in full version)
• no pause button or clipboard/save buttons
• a button to clear ripples and a drip button (so it's still fun to play with!)