Average Temperatures for France in April. Average temperatures for April at cities throughout France are listed below in degrees Celsius and Fahrenheit. The tables give the normals for maximum and minimum monthly temperatures based on weather data collected from 1981 to 2010.
Permittivity is a measure of how easy or difficult it is to form an electric field inside of a medium. Likewise, permeability is a measure of the ability to form a magnetic field inside of a medium. Permittivity Îµ and Îµ0. Permittivity is determined by how much a medium can polarize in response to an electric field. In cgs units, Îµ is unitless. In SI units, Îµ is in units of Farads/meter. This highlights the fundamental difference between the two measures of permittivity in the different unit systems.
Chirality /kaÉªËrÃ¦lÉªti/ is a geometric property of some molecules and ions. A chiral molecule/ion is non-superposable on its mirror image. The presence of an asymmetric carbon center is one of several structural features that induce chirality in organic and inorganic molecules. The term chirality is derived from the Greek word for hand, ÏÎµÎ¹Ï (kheir). The mirror images of a chiral molecule/ion are called enantiomers or optical isomers.