Ice is remarkable in many ways. A simple experiment one can do at home is to add salt to an amount of water in different concentrations. For example, one can mimic the concentration of the ocean, or one can make it even saltier.
Ira FlatowThere's something very magical about water and what happens to it when it freezes. I don't think there's anything else in the world, perhaps in our universe, that is quite like ice.
Ira FlatowThe different colors [of water] again refer to the fact that those little jacks, if you want to call them jacks, those little pyramids, can be packed together in all different ways. And depending on how they're packed together.If you Google blue ice, as I did just while your caller was asking his question, you see some beautiful pictures of ice covering a lake.
Ira Flatow