The book shines in its detailed discussion of classical tests (perihelion precession, light bending, radar echo delay) and modern ones (Gravity Probe B, LIGO basics). It ties theory to measurement better than many competitors.
Long before the LIGO discoveries made gravitational waves a household name, Ohanian provided a clear, linearized treatment of gravitational radiation. His discussion on black holes and Schwarzschild geometry is often cited for its clarity, making complex concepts like event horizons accessible to those with a solid background in undergraduate physics. Key Topics Covered in the Text ohanian gravitation and spacetime pdf
The book does not begin with tensors. It begins with a paradox: the instantaneous action of Newton’s gravity versus the finite speed of light. Ohanian walks the reader through the equivalence principle using thought experiments involving elevators, rockets, and light beams. This section is lauded for its clarity in explaining why time must slow down in a gravitational field. The book shines in its detailed discussion of