Asked by susie
Why is the second not defined by the length of day? Is it because it's such a small fragment of time?
Answers
Answered by
bobpursley
The length of a day? How would that be determined? think on that. Remember the length of a day varies in orbit. We could use a "mean" solar day, but that is as useless as determining "mean" tide.
Time is something that we need a reference to that anyone can get the precise standard, so we use atomic standards, which do not vary.
Time is something that we need a reference to that anyone can get the precise standard, so we use atomic standards, which do not vary.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.