This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionNonsymmetric velocity time dilation.gif
Schematic representation of asymmetric velocity time dilation. The animation represents motion as mapped in a Minkowski space-time diagram, with two dimensions of space, (the horizontal plane) and position in time vertically. The circles represent clocks, counting lapse of proper time. The Minkowski coordinate system is co-moving with the non-accelerating clock.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Add a one-line explanation of what this file represents
Animación esquemática de la dilatación asimétrica la velocidad del tiempo. La animación representa el movimiento como se mapea en un diagrama de espacio-tiempo de Minkowski.
Σχηματική κίνηση ασύμμετρης διαστολής με την ταχύτητα του χρόνου. Το κινούμενο σχέδιο αναπαριστά την κίνηση όπως έχει χαρτογραφηθεί σε ένα χωροχρονικό διάγραμμα Minkowski.