It offers an introduction to the exact solutions of Einstein's vacuum field equations, describing spherical and axisymmetric ... The proper acceleration of a hovering observer -- 2.8.2. Surface ...

Operators in spherical coordinates. Separation of variables 164 4. Solution of the differential equation for spherical harmonics 166 5. Some properties of spherical harmonics 170 6. Normalized ...

February 1991, the Gulf War. Republican Guard units defend the flank of the Iraqi army occupying Kuwait. The Battle of 73 Easting was named after a north-south coordinate line (an "Easting ...