Mécanique des fluides : accès libre

This paper explores the phenomenon of gravitational waves, predicted by Einstein's Theory of General Relativity a century ago and recently confirmed through groundbreaking experiments. Gravitational waves are ripples in the fabric of spacetime, propagating outward from cataclysmic events such as the merger of black holes or neutron stars. Through a comprehensive analysis of the theoretical foundations, experimental techniques, and astrophysical implications of gravitational waves, this study aims to elucidate their revolutionary impact on our understanding of the universe.

Gravitational lensing, a phenomenon predicted by Einstein's Theory of General Relativity, occurs when massive objects such as galaxies or galaxy clusters bend the path of light from background sources, acting as cosmic lenses. This paper explores the mechanisms and consequences of gravitational lensing, shedding light on its role in unveiling the universe's structure and composition. Through an examination of theoretical principles, observational techniques, and recent discoveries in gravitational lensing, this study elucidates the profound insights offered by this cosmic phenomenon.

This paper explores contemporary perspectives on gravity, moving beyond the classical framework of Newtonian mechanics to delve into modern insights provided by theories such as Einstein's General Theory of Relativity and quantum gravity. By examining recent advancements in gravitational research, including gravitational waves, gravitational lensing, and quantum gravitational phenomena, this study aims to illuminate the multifaceted nature of gravity and its profound implications for our understanding of the universe.