Time is that which is measured by a clock. This is a sound way of looking at things. A quantity like time, or any other physical measurement, does not exist in a completely abstract way. We find no sense in talking about something unless we specify how we measure it. It is the definition by the method of measuring a quantity that is the one sure way of avoiding talking nonsense about this kind of thing.


Hermann Bondi (1980), Relativity and Common Sense: A New Approach to Einstein, p. 65

Hermann Bondi Quotes

Time is that which is measured by a clock. This is a sound way of looking at things. A quantity like time, or any other physical measurement, does...

Time is that which is measured by a clock. This is a sound way of looking at things. A quantity like time, or any other physical measurement, does...

Time is that which is measured by a clock. This is a sound way of looking at things. A quantity like time, or any other physical measurement, does...

Time is that which is measured by a clock. This is a sound way of looking at things. A quantity like time, or any other physical measurement, does...