General Relativity and Gravitoelectromagnetism are counter-intuitive theories in which weird gravitational effects are present. We review a selected list of the most lesser-known gravitational phenomena and briefly explain them. Which other effects could we expect from a more complete theory of gravity?
Strange and subtle gravitational effects Read More »
Most research within the field of theoretical gravitation looks more like mathematical physics than physics, with proposals about wormholes in extra dimensions under theories of modification of gravity that do not try to resolve the inconsistencies of General Relativity or even address observations not accounted by our theories. We explore why this happens and suggest a better direction for research in gravitation.
Most research in Theoretical Gravitation makes No Sense… Read More »
Why is gravity non-linear? We explore the non-linear consequences of General Relativity such as the perihelion shift of Mercury, and other tests such as light bending, and how they relate to linear Newtonian theory. How can a Machian theory unifying inertia and gravity be relativized? MOND is neccesarily non-linear by observations. What does this tell us about it?
Why Gravity is Non-Linear Read More »
Newtonian cosmology is problematic, as Seeliger’s paradox shows. We summarize Norton’s review on the topic, including Einstein’s forgotten ideas of the divergence of the metric at infinity, its relationship with Mach’s principle and MOND, and Norton’s preferred solution of the relativity of acceleration.
Seeliger’s paradox & Einstein’s forgotten cosmology Read More »