Is everything relative? Length and time?
22682
If everything in the universe doubled in size overnight, would it be noticeable?
63081
Is the moment of a force the same about any point?
57455
How to average time intervals?
40328
Can something be nothing?
75788
Is spacetime absolute?
71976
Is every element on a set also a set?
91403
Can you calculate unix timestamps (universal clock) from any planet?
20872
Is it possible for a physical object to have an irrational length?
67661
Is there an observable of time?
148993
Can the initial time be non-zero?
131267
How can other processes affect measurements made with `time`?
96689
What is the relationship between size of object with distance?
48497
Doesn't entropy increase backwards in time, too?
147051
Soundness vs completeness, am I understanding? And proving soundness?
27080
When should I use a fixed or variable time step?
124797
What is the speed of time?
28733
Every Number is Describable?