0:00:04well or euclid introducing how they are is the decisions of the universe
0:00:09my i don't really and i'm walking by
0:00:14in july of nineteen forty nine the ingenious location kroger omission favourite five and example
0:00:21of the type of all possible solution aligns find the integration of gravitation
0:00:27in that it is this article to his friend all the time on the occasion
0:00:32of seven is firstly
0:00:34they actually miss traditional phonological solution is the existence of closed time occurs which make
0:00:41it feasible to go one bodily injury into one own house
0:00:47the main goal of our goal is to visualize this unusual space you
0:00:53in general relativity like call diagrams are used to get the first idea about structure
0:00:59of a space time you can see like on diagram of goodness universe image the
0:01:04future like onset point almost time axis
0:01:07as one increases distance to the origin light comes keel over and reach domain of
0:01:12negative corner time along the existence of closed time like ours
0:01:18understand the visual perception in this universe one has to know how like probably case
0:01:24two shows too light rays emitted at the origin common to all like rate is
0:01:29there have a construction stretch long as taxes so you reveals that all light rays
0:01:34emanating from the origin are in contrast by a single decision trees mediated by the
0:01:39rest circle with radius called critical good rate
0:01:44what visualization of quilt universe use tracing a simple but powerful method
0:01:50the basic idea is to trace back light rays from your server side to the
0:01:55scene
0:01:56in case the library is an object the corresponding pixel on the screen is coloured
0:02:00accordingly
0:02:03as a first example initialize the fusion at low seemed are not directly origin
0:02:10there exist two possible ways
0:02:12the orange and blue ones that light can take to reach the of a
0:02:17these two possibilities need to me of inverting images of the glow in this annotation
0:02:24it's one between is that this is not the glow from the origin the two
0:02:28images come closer in finally marriage you the radius
0:02:32we don't the critical going radius the global south side
0:02:40we are now ready
0:02:41two and bar on our mind boggling journey into the past
0:02:47in order to go on such a my journey we have to find a proper
0:02:51in a closed curve
0:02:53by using a boundaries we can transform the simplest close time curve such that it
0:02:58passes through the origin
0:03:00well visualization we use exact is corrupted sense you on a trip back in time
0:03:06the first phase of the journey of this here is addressed but also the time
0:03:11t equals zero this year starts to move along closed time occurs after that returns
0:03:15back to the origin but interface to the destructor sphere remains addressed media server
0:03:24the visualisation of this scenario shows the error rates here and it's copies you to
0:03:29the light phrase the first figured it should give the rice and
0:03:33suddenly the older version of the c approaches the youngest here addressed
0:03:38it reaches the origin at the same moment in time in which the red dispute
0:03:43you are trendy along the clothes i-vector
0:03:46why the refugees appears to prosecute the rights and its blue all the variations remains
0:03:51addressed
0:03:54in our project tracing to provide you perspective on the structure of the universe
0:04:01and you know that it inspires further investigations of other curved space times using this
0:04:06powerful technique