Tagged Questions
-3
votes
1answer
38 views
How many measurements should be done? [closed]
I am measuring time of a computer operation. The operation should run roughly same time each time I measure it. How many times should I measure it to get good average and standard deviation?
3
votes
2answers
245 views
Atomic clocks and how to synchronize them
During teaching measurement section in the class, Our teacher told us about atomic clocks. I have two questions:
What is exactly an atomic clock?
and how do we synchronize two atomic clocks far ...
1
vote
1answer
57 views
How to properly read a measurement result if it is a number?
If the result of a measurement is i.e. $3.2 \pm 0.7$, what is 0.7? At which confidence level we know that the real result is inside of this interval?
7
votes
3answers
355 views
If time standard clocks and any memories about the time standard are destroyed, can we recover the time standard again?
Assume the time standard clocks and any memories about the time standard are destroyed. Can we recover the time standard again exactly?
Recovering the time standard again means we can determine the ...
4
votes
4answers
651 views
Measuring the speed of light and defining the metre - absolute or relative?
If the metre is now defined as the distance light travels in vacuum in 1⁄299,792,458th of a second and the speed of light is accepted to be ...
