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Description
English:This illustration shows abstracted "slices" of space at different points in time. It is simplified as it shows only two of three spatialdimensions, to allow for the time axis to be displayed conveniently.
This image has been (or is hereby) released into the public domain by its author, Fredrik at the English Wikipedia project. This applies worldwide.
In case this is not legally possible: Fredrik grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.