As software engineers have realised lately, one of the important aspects of the scientific process is falsification. Much is to be gained by pushing a concept/law (or software for that matter), to the extremes.
Cosmic variance, in a recent post tells us about one such important experiment–to test for the smallest length scale at which Newton’s inverse square law for gravity still holds– and the answer happens to be down to 56 microns! Take a look!
