Gigameter (Gm)
Definition: A gigameter (Gm) is a unit of length equal to one billion meters (10^9 meters). It is used to describe large-scale distances, typically in astronomy and astrophysics.
History: The gigameter is part of the International System of Units and was introduced to handle extremely large measurements that are common in space science and the study of galaxies.
Current Use: Gigameters are used primarily in astronomy for measuring distances between large-scale celestial objects, such as stars, galaxies, and intergalactic spaces. It helps scientists express the vast scale of the universe.
Nanometer (nm)
Definition: A nanometer (nm) is one-billionth of a meter. It is commonly used in nanotechnology, semiconductor design, and physics to measure atomic-scale structures and wavelengths of light.
History: The nanometer gained importance in the 20th century as scientists developed electron microscopes and advanced microfabrication techniques. It became critical for measuring molecules and tiny electronic components.
Current Use: Nanometers are used in physics, materials science, and chip manufacturing. They help define the scale of microprocessors, DNA strands, and wavelengths in ultraviolet and X-ray light applications.
Quick Conversion Table Gigameter (Gm) to Nanometer (nm)
1 Gigameter (Gm) equal to 1.0e+18 Nanometer (nm)
5 Gigameter (Gm) equal to 5.0e+18 Nanometer (nm)
10 Gigameter (Gm) equal to 1.0e+19 Nanometer (nm)
20 Gigameter (Gm) equal to 2.0e+19 Nanometer (nm)
30 Gigameter (Gm) equal to 3.0e+19 Nanometer (nm)
50 Gigameter (Gm) equal to 5.0e+19 Nanometer (nm)
75 Gigameter (Gm) equal to 7.50e+19 Nanometer (nm)
100 Gigameter (Gm) equal to 1.0e+20 Nanometer (nm)