English

The Rubber band and the Ruler

Popular Physics 2016-05-10 v1

Abstract

In this short presentation, we address two somewhat separate issues. The first one deals with the establishment (vs discovery) of what we call "physical laws". The discussion runs on a "successive approximations" approach, suited to our own thinking process, and aiming at the "simplest \emph{possible} formulation ", as opposed to the idea of pre-existing laws to be discovered. In the second part, we review briefly an approach to the (observed) metric originating from a short distance fractal structure, and remind how a symmetrical situation can arise from mere re-summations.

Keywords

Cite

@article{arxiv.1605.02568,
  title  = {The Rubber band and the Ruler},
  author = {Jean-Marie Frère},
  journal= {arXiv preprint arXiv:1605.02568},
  year   = {2016}
}

Comments

2 parts -- (i) provocative but pedagogical evocation of the establishment and nature of a physical law, (ii) discussion of the rise of a continuous-looking metric from a fractal ----- presented at "Spindel Fest", in honour of Philippe Spindel, Mons, June 2015