Gravity is the weakest of all the known forces that operate in our universe, being about one trillion trillion trillion times smaller than the electromagnetic force that binds electrons and nuclei into the atoms. And yet, gravity reigns supreme in determining the overall structure and evolution of our universe, going all the way back to the moment of the Big Bang 13.8 billion years ago. Gravity is responsible for the formation of galaxies, stars, and planets and keeping us confined to the Earth. Under extreme conditions, gravity leads to exotic phenomena such as Black Holes, Gravitational Waves, and the bending of light beams. Counterintuitively, the theory of gravity also explains the currently observed accelerated expansion of our universe. Unlike the other known forces in the universe, gravity is unique in that it is the theory of the very fabric of spacetime itself.
In this talk, Dr. Mantry will describe the underlying theory of gravity and its role in the structure and evolution of our universe and various phenomena such as planetary motion, black holes, gravitational lensing, and gravitational waves. He will conclude with a discussion of some of the open questions and current research efforts.
Sonny Mantry is a faculty member at the University of North Georgia in the Department of Physics. He received his B.S. degree in physics at the Rensselaer Polytechnic Institute (RPI) and his Ph.D. at the Massachusetts Institute of Technology (MIT). His research is in the field of theoretical particle physics. Website: https://sites.google.com/site/mantrysite/home