Noun
English Wikipedia has an article on:Planck lengthWikipedia
Planck length (plural Planck lengths)
(physics) A unit of length, believed to be the scale at which quantum gravity effects become significant, that is defined in terms of the speed of light, the gravitational constant and the reduced Planck's constant, namely:
ℓ
P
=
ℏ
G
c
3
≈
1.616252
(
81
)
×
10
−
35
meters
{\displaystyle \ell _{P}={\sqrt {\frac {\hbar G}{c^{3}}}}\approx 1.616252(81)\times 10^{-35}{\mbox{ meters}}}
According to string theory, every particle in the universe, at its most microscopic level ( Planck length ), consists of varying combinations of vibrating strings (or strands) with preferred patterns of vibration. Source: Internet
The discovery of Planck's constant enabled him to define a new universal set of physical units (such as the Planck length and the Planck mass), all based on fundamental physical constants upon which much of quantum theory is based. Source: Internet
The ideas of Planck length and Planck time in modern physics place a limit on the measurement of time and space, if not on time and space themselves. Source: Internet