Planck length

短语

词形变化

Planck lengths 复数 Planck lengths

释义与例句

n.
  1. 1.

    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=√hbar Gc³≈1.616 252(81)×10⁻³⁵ mbox m

    物理

词源

Named after Max Planck, who defined it.

来源：wiktionary