thunderstorms, however, physics has so far been unable to propose a satisfactory
explanation-since it limits its perspective to the conditions of the external process-, neither of rain
formation (in spite of de Luc's observations and the conclusions drawn from them, and, among the
Germans, the arguments made by the clever Lichtenberg against the theory of dissolution, whose
conclusions have at least been retained to some extent) nor of lightning and thunder. It has had just
as little success with other meteorological phenomena, in particular with meteorites, in which the
process progresses as far as the beginning of an earthly core.
The concept of matter, gravity, sets out its moments in elemental nature, initially in the form of