David Pratt May 2001 Part 1 of 4 Contents Part 1: The Solid Earth Hypothesis 1. The standard earth model 2. Deep drilling springs surprises 3. Mass, density, and seismic velocity (09/05) 4. Deep earthquakes 5. Geomagnetism References Part 2: The Hollow Earth Hypothesis 1. Early theories 2. Modern theories 3. Hollow moons 4. Feasibility — I (06/04) 5. Feasibility — II (08/05) References Part 3: Polar Puzzles 1. The open polar sea 2. The north pole controversy 3. […] Read More