It is the smallest length scientists have discovered. Anything smaller makes "no physical sense"
No, they are not.
Max Planck.
1000 meters
meter
look below
365 days
The Planck distance, or Planck length, is 1.6 x 10^-35 meters.
Planck length and Planck time Planck time is the time it would take a photon moving at the speed of light in a vacuum to cross a distance equal to the Planck length. The Planck length is 1.616252 × 10−35 meters, and the Planck time is 5.39121 × 10−44 seconds. Links are provided to the relevant Wikipedia articles.
The meter.
Erwin Planck was born in 1893.
Erwin Planck died in 1945.
The Planck Dive was created in 1998-02.