Multitudes of folk tales of various peoples are based on the legend of the "water of life." It healed wounds and revived the dead. It made the coward brave and increased the strength of the brave a hundredfold.

   It is not by chance that man attributed such magic properties to water. The very fact that we are alive on Earth, that we are surrounded by green woods and flowering fields, that we can go boat riding or run through puddles under the rain in summer and go skiing or skating in winter - is all due to water. To be more exact, all this is due to the ability of water molecules to attract each other and form associations. This is one of the conditions for the origin and development of life on our planet.

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