In this lecture entitled, “The Origin and Evolution of Universes,” Prof. John D. Barrow of the University of Cambridge explains how Einstein’s theory of gravitation transformed the way we think about the universe today.
Cosmology Before Einstein's Theory of Gravitation
Before 1915, depictions of the cosmos leaned more toward the subject of art history than science, and descriptions of the universe were often imaginative in nature. This is because, while scientists could study the stars and local celestial motion, there were no known laws that described the universe as a whole.
Einstein's Theory of Gravitation: Cosmology Becomes a Science
However, in 1915, Einstein produced a new theory of gravitation that was able to generate descriptions of entire universes. His theory provided a set of mathematical equations that were consistent with the other known laws of physics at that time. It was this theory that linked the field of cosmology with those of physics, mathematics and astronomy, and placed cosmology firmly in the realm of science.
This lecture is from the 2017 Society of Catholic Scientists Conference.