An ultra-precise measurement of a transition in the hearts of thorium atoms gives physicists a tool to probe the forces that bind the universe.
An ultra-precise measurement of a transition in the hearts of thorium atoms gives physicists a tool to probe the forces that bind the universe.
Yes, but that model is late in the gravity game. We were toying with the two bodies experiment before heliocentrism, let alone higher-dimension curvature of space.