EVERYDAY SCIENCE

Detailed explanation-1: -But, according to Descartes, the vacuum of space was not empty at all, but was filled with matter that swirled around in large and small vortices. His model involved a system of huge swirling whirlpools of ethereal or fine matter, producing what would later be called gravitational effects.

Detailed explanation-2: -The Oscillating Universe Theory is a cosmological model that combines both the Big Bang and the Big Crunch as part of a cyclical event. That is, if this theory holds true, then the Universe in which we live in exists between a Big Bang and a Big Crunch.

Detailed explanation-3: -Descartes, in his Principia philosophiae (1644) proposed that the sun is at the center of a vast vortex of rotating invisible matter, and the swirl of the vortex carries the planets around, rather like leaves in a whirlpool (see first image above).

Detailed explanation-4: -In the early modern period, various philosophers and scholars have proposed the idea of the vortex, i.e., of a fluid in rotational movement around an axis, in particular Descartes, to explain the movement of the planets around the Sun, in the same direction and in approximately the same plane.

Detailed explanation-5: -The vortex theory of the atom was based on the observation that a stable vortex can be created in a fluid by making it into a ring with no ends. Such vortices could be sustained in the luminiferous aether, a hypothetical fluid thought at the time to pervade all of space.