Water fascinating in all its phases, forms and states of aggregation. Without it, life as we know it would not exist on Earth, for as Paracelsus stated in the 16th century water is the matrix of the world and of all its creatures. While it may appear to be a simple molecule, there is still much about it which is not fully understood. What is notably lacking is a microscopically-based understanding of the reasons for the many anomalous properties of water.This book presents lectures from the Enrico Fermi summer school Water fundamentals as the basis for understanding the environment and promoting technology held in Varenna, ukryj opis