Using slices to construct a two-dimensional embedding of a construction named for this physicist creates the slightly confusingly named Flamm’s paraboloid. This scientist’s namesake equation models radiative transfer in mediums that absorb (15[1])and emit radiation. (15[2])This physicist’s namesake metric was developed from the first exact solution of the (*) Einstein field (10[1])equations (10[1])and assumes (10[4]-5[1])the (10[1])charge, (10[2]-5[1])angular momentum, (10[2]-5[1])and cosmological (10[1])constant of a spherical (10[1])mass is zero. (10[3]-5[1])A distance named for this physicist (10[1])is equal to two times the gravitational (10[1])constant (10[2])times mass divided by the speed of (-5[1])light squared. For 10 points, name this (10[1])physicist (10[1])who names the first defined radius (10[1])that any astronomical body must be smaller (-5[1])than to be a black hole. ■END■ (10[6]0[2])