Science 101: Why is a light-year a unit of distance rather than a unit of time? | NSTA

Science 101: Why is a light-year a unit of distance rather than a unit of time?

Science and Children -- October 2006

There are many issues associated with measurement that can be confusing. From light-years, to Richter scales, to logarithmics, Bill Robertson makes science more palpable for the average person.

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