"Planck Length"@en . . "\\(\\ell_P\\)"^^ . "1.61625e-35"^^ . . . "In physics, the Planck length, denoted \\(\\ell_P\\), is a unit of length, equal to \\(1.616199(97)\u00D710^{-35}\\)\u00A0metres. 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. "^^ . . "\\(\\ell_P = \\sqrt{\\frac{ \\hbar G}{c^3}} \\approx 1.616199(97)) \\times 10^{-35} m\\), where \\(c\\) is the speed of light in a vacuum, \\(\\hbar\\) is the reduced Planck's constant, and \\(G\\) is the gravitational constant. The two digits enclosed by parentheses are the estimated standard error associated with the reported numerical value."^^ . "http://en.wikipedia.org/wiki/Planck_length?oldid=495093067"^^ . "plancklength" . "http://dbpedia.org/resource/Planck_length"^^ . "https://en.wikipedia.org/wiki/Planck_units"^^ . .