The phrase "a question of relativity" is correct and usable in written English.
It can be used in discussions about perspectives, interpretations, or contexts that vary based on different viewpoints or circumstances.
Example: "In the realm of ethics, what is right or wrong can often be seen as a question of relativity, depending on cultural norms."
Alternatives: "a matter of perspective" or "a matter of context".
The derivation outlined in the previous section contains all the information needed to define general relativity, describe its key properties, and address a question of crucial importance in physics, namely how the theory can be used for model-building.
This is a question of domain: they've got all the household words they need, but probably don't know how to say "general relativity" or "space-time continuum" in their language.
And although Einstein's development of general relativity was in large part motivated by a desire to implement a general principle of relativity, to wit that all motion is relative motion, that it succeeds in doing so was questioned shortly after the theory was introduced.
The Special Theory of Relativity (STR) is notionally based on a principle of relativity of motion; but that principle is 'special' — meaning, restricted.
Having read both books back to back it seems to me that the second offers an overwhelming answer to questions – of cultural relativity and ethics –raised in the first.
Nevertheless, a residue of relativity remains.
38 39 Triggering and delaying are a matter of relativity.
Since the wave function has a covariant dynamics, the question of the compatibility with relativity turns on the dynamics of the additional properties —the so-called 'hidden variables'— that no-collapse theories typically postulate.
If serious scientists can question Einstein's theory of relativity, then there must be room for debate about the workings and complexities of the Earth's atmosphere.
But writing for television gives novelists a whole new view of relativity.
But Einstein needed to answer the question to invent his theory of relativity, the breakthrough that wrenched science into a new century and enshrined the equivalence of matter and energy.
