Saturday, September 12, 2009

Another Reason to Suspect God Exists

Density is defined as a material's mass unit per volume, or the ratio (concentration) of matter contained in a given volume. For most liquids, freezing decreases mass and increases density causing it to become smaller and heavier.

Not so with water.

When water freezes, a crystallized lattice (like a web) of hydrogen-bonded molecules forms that contains more open spaces than liquid water causing the structure to expand and become less dense than liquid water.

That's why ice cubes float in a glass of water and water freezes from the top down. It's also why freezing sea water produces drinkable water - the salt in the water won't crystallize.

Think about the effect on life if water behaved like other liquids.

- Temperatures on islands and other land masses surrounded by water would not have stabilized.
- Even the temperature of the human body would not have stablized.
- Lakes and oceans would freeze all they life they contain, ultimately affecting the oxygen levels in the atmosphere.

In short, if the molecular properties of water were just slightly different, life as we know it would not have formed and survived.

For me, it seems highly unlikely that water's unique chemical properties that are necessary for life would have developed by mere chance. It's far more reasonable to believe a rational mind gave water it's unique properties to support our particular form of life.

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