A final reflection

We have reasoned the plausibility of an original meter bound to the second through the swing of the pendulum. If our guess is true, then, despite the search for standards taken from nature has been the motivation for so many, long scientific and philosophical researches, at the bases of the system virtually used all over the world there are the throbs of our hearts. May be an original support to the well known statement by Jean Jacques Rousseau ``Nothing is less in our power than the heart, and far from commanding we are forced to obey it.''