1.616*10^-35 metres. That's so small. If atoms (~ 10^-15 metres) were planck length diameter, packed in next to each other in an array at planck length distances, and there wasn't any pesky forces and ...
Fermilab scientists have been conducting experiments to look for quantum fluctuations of space and time at the smallest scale imaginable according to known physics. At this limit, the Planck length, ...