Six Not-So-Easy Pieces: Einstein's Relativity, Symmetry, and Space-Time (Helix Books)
Richard P. Feynmanamazon.com
Six Not-So-Easy Pieces: Einstein's Relativity, Symmetry, and Space-Time (Helix Books)
A workable quantum theory of time – which would also be the quantum theory of gravity – has been a tantalizing and unattained goal of theoretical physics for some decades now.