Planck Length

In physics, the Planck length, denoted ℓP, is a unit of length, equal to 1.616199(97)×10−35 metres. It is a base unit in the system of Planck units. The Planck length can be defined from three fundamental physical constants: the speed of light in a vacuum, Planck's constant, and the gravitational constant.

Read more about Planck Length:  Value, Physical Significance

Famous quotes containing the word length:

    “A needless Alexandrine ends the song,
    That, like a wounded snake, drags its slow length along.”
    —Alexander Pope (1688–1744)