(Note that the output times change for a while during the middle of each movie to resolve the rather rapid absorption of the second pulse)

scalar field gradient (with "full scale" on) :  Phi.mpg (1.41M)

lapse and shift:  alpha_beta.mpg (807K)

psi:  psi.mpg (716K)

outgoing null expansion (triggers excision when it falls below -0.01):  exp_out.mpg (729K)

K^r_r:  Krr.mpg (784K)

mass aspect:  mass.mpg (937K)