Microscopes are equipped with a scale called a reticule . This is built into the eyepiece. The ocular micrometer consists of 50-100 divisions.
Light years
You don't, miles are not a unit in the metric system. All distances are measured in metres. Prefixes are used for multiples or fractions of a metre. Distances that used to be measured in miles would, today, be measured in kilometres.
Stellar distances are measured in light-years, which is the average distance between the Earth and the Sun.
Distances are measured in metres.
The SCALE of the map indicates the relationship between distances measured on a map and the actual distances.
they are measured in AU
Long distances are measured in AU in Eve Online. For short distances, it is measured in KM.
Usually such distances are measured either in light-years, or in parsecs.
Usually small distances. You may get rainfall measured in mm.
The distances are measured from the tip of home plate to the bottom of the fence.
It depends on what you are trying to measure. Long distances usually are measured in miles. Survey distances usually are measured in feet.
Microscopic current are measured in microamps1(0-6) , nanoamps(10-9 ) and picoamps(10-12)
lightyear
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Light years
Light Years
distances between cities are usually measured from the central post offices