théorie des cordes

The "théorie des cordes" (string theory) suggests that the fundamental building blocks of the universe are not point particles but tiny, vibrating strings. These strings can be open or closed and vibrate at different frequencies, which determine the type of particle they represent, such as electrons or photons. String theory aims to unify all fundamental forces—gravity, electromagnetism, and nuclear forces—into a single framework. It proposes that these strings exist in higher-dimensional spaces beyond our familiar three dimensions, offering a potential path toward a comprehensive "theory of everything."