On the singularities of Reissner-Nordstrom space-time

It is shown that if two Reissner-Nordstrom space-times, both with the same mass m and charge e, glued together in the singularities, then the light ray in black hole of the first space time can go continuously through the singularity into black hole of the second. The behavior of tidal forces near the Reissner-Nordstrom space-time singularity is examined by considering what happens between two particles falling freely towards the singularity. (C) 2004 Published by Elsevier Ltd.