Autor:
fratellowatches
Publicado el:
18/07/2017
The current Speedmaster Professional X-33 Skywalker distinguishes itself from its predecessors by two useful functions for space exploration: mission elapsed time (MET) and phase elapsed time (PET). It also has an extra time zone compared to the first two generations. PET is based on a patented design by ESA astronaut Jean-Franc?ois Clervoy and add...
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