Our visitor had just arrived in the United States from South America. I had no idea what he was talking about, so I joined him at the door and saw the scene on the cover of this issue of our journal. Nothing would stop him from joining my girls to make his own snowman.
Water is indeed a remarkable material.
The design of its molecular structure allows it to dissolve other materials in large amounts. This same structure allows water to hold huge amounts of heat. It also allows water to exist as a solid. Liquids like alcohol have a molecular design that does not make them anywhere near as good as water in these critical ways. Perhaps the most important use of water is in living things.