Megameter (Mm)
Definition: A megameter (Mm) is a unit of length equal to one million meters (10^6 meters). It is used to measure large distances in both geography and astronomy.
History: The megameter was introduced alongside other metric units to standardize measurements of large distances. It has been mainly used in astronomical contexts to simplify expressions of distances in space.
Current Use: Megameters are used in astronomy to describe distances between astronomical objects such as the Earth and the Sun. They also appear in some applications in geology and planetary science.
Hectometer (hm)
Definition: A hectometer (hm) is a unit of length equal to 100 meters. It is primarily used in fields like forestry, agriculture, and environmental science for measuring land areas and distances.
History: The hectometer was introduced in the 18th century as part of the metric system, designed to provide a logical scale for measurement based on powers of ten. It is less common in everyday use but has practical applications in certain industries.
Current Use: Hectometers are used in environmental monitoring and land measurement, especially in forestry to describe distances between trees or in large-scale agricultural fields.
Quick Conversion Table Megameter (Mm) to Hectometer (hm)
1 Megameter (Mm) equal to 10,000 Hectometer (hm)
5 Megameter (Mm) equal to 50,000 Hectometer (hm)
10 Megameter (Mm) equal to 100,000 Hectometer (hm)
20 Megameter (Mm) equal to 200,000 Hectometer (hm)
30 Megameter (Mm) equal to 300,000 Hectometer (hm)
50 Megameter (Mm) equal to 500,000 Hectometer (hm)
75 Megameter (Mm) equal to 750,000 Hectometer (hm)
100 Megameter (Mm) equal to 1,000,000 Hectometer (hm)