Metric System

Système CGS

Définition

Un système d'unités métriques fondé sur le centimètre, le gramme et la seconde comme unités fondamentales, utilisé dans certaines branches de la physique et de l'électromagnétisme.

Explication

The CGS system was the dominant scientific framework from the 1870s until the mid-20th century. It produces units suited to small-scale phenomena: the dyne (force = g·cm/s²), erg (energy = g·cm²/s²), and poise (viscosity). One dyne = 10⁻⁵ newtons; one erg = 10⁻⁷ joules. Electromagnetic CGS has two variants (Gaussian and SI-Gaussian) that differ in how they handle electric and magnetic constants. Modern science now predominantly uses SI.

02

RELATED ARTICLES

03

RELATED TERMS