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Pedant here! > NIST researchers have made the most accurate atomic clock to date — one that can measure time down to the 19th decimal place. That's precision,
by gwerbret 1y ago
Pedant here!
> NIST researchers have made the most accurate atomic clock to date — one that can measure time down to the 19th decimal place.
That's precision, not accuracy.
- _se 1y agoNope, it is not. A single measurement cannot be precise. Precision is a measure of how close multiple measurements are to one another. Accuracy is how close a single measurement is to its true value. A clock that can measure a point in time to 19 decimal places with respect to its true value is accurate.
- johnnyballgame 1y agoWhat is that true value? And was it accurate?
- _se 1y agoUnfortunately, I am not a time lord, so I don't know. But I do know the definitions of these words, and that is what they are. You are free to argue with someone else about the true meaning of time. A single measurement can _never_ be precise, it is simply not possible.
- RyJones 1y agoTell me you have never shot a rifle for score, without saying you haven't. You can be accurate, precise, or both. Said clock may be precise, but not accurate.
- konstantinua00 1y agothere is no true value, so it's not accuracy it's precision
- deleted 1y ago[deleted]