Measuring the Wellspring of KnowledgePublished: 2001
In the spruce forest behind my parents home in Sweden springs a natural well. It is so small that you don´t notice it until you almost stumble upon it.
What you see is a pond of water no more than a half meter in diameter. The surface looks calm, but then you see that water is slowly emerging on to the surface from a source hidden beneath. The water is slowly flowing over the edge of the pond and spreading into the ground below it.