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+=========================================
+Physical Observations, Applications
+=========================================
+
+
+Michealson-Morley and Gravitational Redshift <=> Locally Lorentz
+--------------------------------------------------------------------
+(motivational)
+
+
+Precession Perhelion of Mercury <=> Schwartzchild?
+------------------------------------------------------
+(explicit calculation)
+
+
+Deflection of Light <=> Geodesics
+-----------------------------------
+From Carroll p292,
+G M_sun /(c^2) = 1.48e5 cm, R_sun = 6.96e10 cm, deflection angle of 1.75 arcsec
+
+
+Gravitational Waves <=> Weak Field Approximation, Perturbation Theory
+---------------------------------------------------------------------------
+See Carroll p293
+
+
+GPS Corrections <=> Geodesics with E&M
+------------------------------------------
+(order of magnitude?)
+
+
+Gravity Probe B <=> Frame Dragging, geodetic
+----------------------------------------------------------------------------
+(probably not...)
+