TITLE:
Is Global Simultaneousness Compatible with Special Relativity?
AUTHORS:
Hans H. Diel
KEYWORDS:
Space-Time Models, Global States, Global Time, Global Simultaneousness, Direction of Time
JOURNAL NAME:
Open Access Library Journal,
Vol.2 No.6,
June
17,
2015
ABSTRACT: Special relativity theory abandoned the notion of absolute space and
time. For many physicists, it also abandoned the notion of global time, i.e., a unique time coordinate that could
be assigned to the overall universe. On the other hand, with theories and
discussions on the dynamical development of the overall universe, the notion of
a global state, which is associated with global time, seems to be very useful,
if not unavoidable. This paper discusses to what extent the notions of global
states, global time and global simultaneousness can be defined such that they
are compatible with Einstein’s relativity theories. The results show that the
establishment of a global coordinate system requires, in addition to the choice
of suitable space and time coordinates the selection of a physical object with
an assumed uniform velocity.