Named after physicist

Max Planck, considered to be the father of

quantum mechanics. There are two different calculations used for Planck time, which give different

values:

- $t_p = sqrt(G\hbar/c^5)$, which is approximately 5.391E-44 seconds.
- $t_p = sqrt(Gh/c^5)$, which is approximately 1.351E-43 seconds.

G = 6.672E-11

N m**2/

kg**2

h = 6.6262E-34

J s
\hbar = h / (2

pi)

c=2.9979

m/

s