Quote#Time
Light signals alone provide the metrical structure of the…
Quote byHans Reichenbach · 1891–1953
Commonly attributed — not confirmed in an authoritative edition. Cited on Wikiquote to: The Philosophy of Space and Time (1928, tr. 1957).
English (original)
Light signals alone provide the metrical structure of the four-dimensional space-time continuum. The construction may be called light axioms.
— Hans Reichenbach
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