During the winter we may wonder about a few things.
We know that low clouds, cumulus and status, are made of water droplets. But how can clouds be made of water if the temperature is below freezing? It can be far below the freezing point and these clouds are still there.
How do snowflakes form perfectly symmetrical patterns? But the pattern in each snowflake is different from the others.
Why are those rings that form on icicles that contain impurities exactly one cm apart?
Sand is rock that has been broken down by the incessant impact of waves. But why are grains of sand the scale that they are? It is because of the nature of water, rather than the nature of rock.
Why is water ideal for nuclear processes? Heavy water is water where the hydrogen atoms in the molecule each has a neutron. This makes it so that it will slow neutrons down, but not absorb them, unlike ordinary water, which makes heavy water ideal as a moderator. It is also used in hydrogen, or thermonuclear, bombs, as a layer of heavy water around an ordinary atomic bomb. The molecules of heavy water are fused together by the energy that is released, releasing far more energy.
Here is a link to my theory of how water works, "Water Made Really Simple", on the meteorology and biology blog:
www.markmeeklife.blogspot.com/2012/11/water-made-really-simple.html?m=0
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