TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

PLANCK UNIT [2 records]

Record 1 2023-10-17

English

Subject field(s)
  • Metrology and Units of Measure
  • Astrophysics and Cosmography
  • Space Physics
Universal entry(ies)
mP
correct, symbol, see observation
CONT

[Planck mass is a] natural unit of mass that can be obtained by combining the fundamental natural constants that govern spacetime, the strength of gravity and the quantum world : the gravitational constant, Planck's constant and the speed of light. Compared with the masses we’re used to in everyday life, the Planck mass is rather small, a mere 2 hundredths of a thousandth of a gram.

OBS

mP: written mP.

French

Domaine(s)
  • Unités de mesure et métrologie
  • Astrophysique et cosmographie
  • Physique spatiale
Entrée(s) universelle(s)
mP
correct, symbol, see observation
OBS

mP : s'écrit mP.

Spanish

Save record 1

Record 2 2022-01-27

English

Subject field(s)
  • Metrology and Units of Measure
  • Astrophysics and Cosmography
  • Space Physics
CONT

The Planck units are characteristics of the properties of the Universe during its first moments. The standard Big Bang model can account for the evolution of the Universe back to around the Planck time, when the Universe was at the Planck temperature and the mean energy of photons was close to the Planck energy.

French

Domaine(s)
  • Unités de mesure et métrologie
  • Astrophysique et cosmographie
  • Physique spatiale

Spanish

Save record 2

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