Notes:

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Railway Allows control from the web browser as you build your own railway system. The railway can be modified as the train is running. It is available at http://www.parallelGraphics.com/showroom/stuff/games/railway/

The periodic table of the elements demonstrates the configuration of all of the elements. It uses a onion-shell model for the electrons. You can select any element to view. It is available at http://www.parallelGraphics.com/showroom/solutions/distance-training/mendeleev/