Journal of Experimental and Theoretical Physics . 1989. T. 95, vol. 3, s. 769-776. The paper suggests that the known laws of physics do not seem to contradict the fundamental possibility of creating a time machine that allows you to travel into the past. Quantitative characteristics of the time machine are given. A new version of the time machine is proposed. Principal issues related to the possibility of the existence of closed time lines are considered. The work is supplemented by the application and. D. Novikov "Physical Properties of Time Machine" Advances in Physical Sciences. 1989. T. 157, s. 549-550.