Measuring Salinity

Here's a great little project for creating a device that will measure the amount of salinity in any given liquid. This is in no way necessary for the home cook, but it should be very interesting for doing kitchen chemistry experiments, and it might be useful for creating new recipes. There's also a link for a free java program called Molecular Workbench that will let you model certain chemical reactions. I am keen to play around with that, and see what can be done with it.