The scale is subjective, and different observers may determine different values.

But it's not that simple, because different observers read different things from Reagan's economic record.

Obviously, though described somewhat differently by two different observers 5 the actual fact was the same.

Not in the cheese, for different observers give quite different accounts of it.

Such collections of events are perceived differently by different observers.

This applies to the total energy of systems, although different observers disagree as to the energy value.

The invariant mass of the system is also conserved, but does not change with different observers.

However, inter-observer variability is that of systematic differences among different observers.

What is actually true about space and time does not just look different for different observers.

It was written by at least eight different observers; as he points out, the margin of error here is substantial.