Because Albert Atterberg spent a lot of time making "worms" out of soil so you could live a safe and happy life. Albert Atterberg is one of the “Three Musketeers” of soil testing along with Arthur Casagrande and Karl Terzaghi. He developed this somewhat arcane test method that allows soil engineers to determine the moisture content limits where a silt or clay soil goes from one moisture state to another moisture state. "What is this moisture state I speak of?" At low moistur