Why We Often Measure Distances In Time

Distances are typically documented using specific measurement terms like centimetres, metres and even kilometres. But when someone asks you how far it is to the shopping centre, you'll usually respond with a measurement of time instead of an exact number of kms.

So in its latest video, Minute Physics explains why we often refer to distances as measurements of time, why scientists will refer to huge distances in space as light seconds, light minutes, or even light years, and why it's a terrible idea to take a whale from LA to Sydney unless you've got a lot of time on your hands. [YouTube]

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