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kurious
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What is the definition of a clock in relativity theory?
Definition of a clock in relativity theory
- Context: Graduate
- Thread starter kurious
- Start date
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- Tags
- Clock Definition Relativity Theory
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Discussion Overview
The discussion centers around the definition of a clock within the context of relativity theory. Participants explore the conceptual and practical implications of what constitutes a clock, touching on both theoretical and empirical aspects.
Discussion Character
- Conceptual clarification
- Debate/contested
- Historical
Main Points Raised
- One participant suggests that a clock is defined as "an object that measures the rate of time flow."
- Another participant argues that the meaning of a clock is not clearly defined in relativity, proposing that it is acceptable to have "blind faith" in the existence of "ideal clocks" conceptually.
- A historical perspective is provided, mentioning the development of the first naval chronometer and its practical implications for navigation, emphasizing the empirical evolution of clock definitions.
- It is noted that the current definition of a "good clock" is based on standards set by a commission, specifically referencing the SI second defined through atomic transitions.
- A participant expresses the opinion that defining a clock theoretically is unproductive, advocating for empirical definitions based on observation.
- A reference to an article by a general relativity expert is shared, suggesting further reading on the nature of time and clocks.
Areas of Agreement / Disagreement
Participants do not reach a consensus on the definition of a clock in relativity theory, with multiple competing views presented regarding its theoretical and empirical aspects.
Contextual Notes
There is a lack of clarity regarding the theoretical versus empirical definitions of clocks, and the discussion reflects differing opinions on the productivity of each approach.