an electron)
                                 (1 e.u. = 1.602 x 10^-19 coul)

time           ---             clicks (1 click = 48.88821 fmsec)
timestep       dt              clicks
input timestep dt_in           fmsec
time convert   dtfactor        48.88821 fmsec / click

temperature     t_current       degrees K
                t_start
                t_stop
input damping   t_freq_in       inverse fmsec
internal temp   t_freq          inverse clicks
  damping

dielec const    dielectric      1.0 (unitless)