The 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.

The 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.

I think the most remarkable thing about ice, in my opinion at least, is that it occurs in many, many, many different forms. Most solids occur in typically one or maybe two or three different forms, and ice has approximately 15 different crystal forms, as well as two forms that are called amorphous, which means without any shape at all.

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.

People tend to romanticize what they can't quite remember.

Amorphous forms [of ice], for example, are found naturally on comets, on asteroids, and the crystalline forms are found on Earth or at least could be made on Earth with enough pressure. Nothing else does this.

H2O it's a complicated, three-dimensional, charged object. And one can pack these things in many different ways, a little like playing the child's game of jacks, where those complicated little objects can be thrown together in all different ways.