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.
Micron (µ)
Definition: A micron (µ) is a unit of length equal to one-millionth of a meter (10^-6 meters). It is also known as a micrometer and is used for measuring small objects like bacteria, cells, and micro-particles.
History: The micron was introduced in the late 19th century during the advancement of microscopy. It provided scientists with a standardized unit to describe very small dimensions, especially in biological and material sciences.
Current Use: Microns are widely used in fields such as microbiology, materials science, and nanotechnology. They help measure the size of cells, dust particles, fibers, and in the manufacturing of high-precision components.
Quick Conversion Table Megameter (Mm) to Micron (µ)
1 Megameter (Mm) equal to 1,000,000,000,000 Micron (µ)
5 Megameter (Mm) equal to 5.0e+12 Micron (µ)
10 Megameter (Mm) equal to 1.0e+13 Micron (µ)
20 Megameter (Mm) equal to 2.0e+13 Micron (µ)
30 Megameter (Mm) equal to 3.0e+13 Micron (µ)
50 Megameter (Mm) equal to 5.0e+13 Micron (µ)
75 Megameter (Mm) equal to 7.50e+13 Micron (µ)
100 Megameter (Mm) equal to 1.0e+14 Micron (µ)