I saw on Discovery Science the programme of the universe. There have been told a lot of interesting things, for instanse,For big bang happened due to "nothing".Stephen Howking explained this phenomenon by the fact the the law of conservation of energy is saved.And what is the sum of positive and negative energy is 0. The negative energy went into space.I don't understand the phenomenon that is explained there.The essence of it is that if the clock fall into a black hole, time will slow down.And when the clock will reach black hole, time stops.In other words, in black hole no time!I have a quetions.1) What frame of reference time stops K or K'?2) In this case, Does Lorentz transformation relate to this phenomena?t'=t/sqrt(1-(v/c)^2) and t=(t'+(v/(c^2))x')/sqrt(1-(v/c)^2)