Sprinkled iron filling on a flat empty table top and then try to pick up each individual pieces one piece at a time. The task seems almost impossible unless one has all the time in the world and all the patience that is humanly capable. On the other hand, with a simple permanent magnet all the tiny ferromagnetic particles can almost be simultaneously picked up without much of any effort. Moreover, shaping the magnet into a needle and suspending it in a bowl of oil, one can find ways of navigating around the world. These two phenomena were discovered by the ancient navigators but lost to antiquity until rediscovered by others in the 10th century.

The inverse empirical corollary of these magnetic phenomena is the electrical as well as magnetic neutrality of the whole universe in the large. In the small, each atom is made of electrically charged particles, usually protons and electrons, most with certain numbers of neutrons. Although the neutron is electrically neutral it is its magnetism that allowed it to be detected by experiments. Controlling the electric and magnetic properties of charged and neutral particles effected the invention of the now obsolete form of TVs which were replaced by flat screen LED or LCD and other advanced solid states technologies. Although magnetic monopoles still cannot be found it is the proper occasion to ask the question: whether would it be electric or magnetic probe or a combination of both that can quickly pick up the existence of spacetime charges as quanta of the spacetime continuum?