Planck length | has symbol lP |  |
has value 1.6160 × 10-35 m |  |
has equation  |  |
has uncertainty 0.0012 × 10-35 m |  |
has definition The dimension at which space is predicted to become "foamlike" and at which Einstein's theory is supposed to break down. |  |
has definition The size limit at which normal notions of space-time are supposed to break down. |  |
has definition The scale below which quantum fluctuations in the fabric of spacetime would become enormous. The size of a typical string in string theory. |  |
is an instance of universal constant |  |
is an instance of length |  |
length | has unit length unit |  |
fundamental physical constant | has accuracy |  |