Convert Electron Radius (re) to Nautical League (Int) (nl (int)) instantly.
About these units
Electron Radius (re)
The classical electron radius, approximately 2.818 × 10⁻¹⁵ meters, is a theoretical value derived from classical electromagnetic theory rather than an actual measured size. It represents the radius a charged sphere would need to have in order for its electrostatic self-energy to equal the electron's rest energy. Although electrons are now understood to be point-like or extremely small compared to this radius, the classical electron radius remains useful in scattering theory, especially in calculations involving Thomson scattering — the elastic scattering of electromagnetic radiation by free electrons. Thus, while not a physical dimension of the electron, the classical radius serves as a meaningful parameter in specific areas of physics and retains importance in radiation modeling and plasma physics.
Nautical League (Int) (nl (int))
The international nautical league is defined as 3 international nautical miles, or 5,556 meters. It simplifies the expression of moderately large maritime distances by grouping nautical miles into a more manageable larger unit. Because nautical miles relate directly to Earth's geometry, the nautical league also maintains a connection to latitude and longitude. While not widely used in modern navigation—pilots and mariners typically stick to nautical miles and knots—nautical leagues still appear in older literature, historical accounts of sea voyages, and some naval traditions. They offer narrative convenience when describing long journeys without resorting to extremely large numbers. The unit highlights the tendency of sailors to create practical, scaled units that simplify communication during long-distance travel.