Assertion: metric system's unit | /r/HasProperty | esu
Facets:
Source sentences:
text: The reports recognised two centimetre–gram–second based systems for electrical units: the Electromagnetic (or absolute) system of units (EMU) and the Electrostatic system of units (ESU).
text: The Electrostatic system of units (ESU) was based on Coulomb's quantification in 1783 of the force acting between two charged bodies.