Does Unruh Radiation Take on Einstein's Equivalence Principle?

The perennial question as to whether a charge in a uniform gravitational field would radiate has seen its comeback many times. Looking at gravity as a force from the special relativitic viewpoint it would appear that the answer is "yes", but considering gravity as geometry from a general relativistic perspective one would be or inclined to say "no", which is what Bondi and Gold claimed. 

Deterministic Laws are Not Governed by Statistical Principles: There is no such thing as Entropic Gravity

In a New York Times science article entitled "A scientist takes on gravity"  (July 12th,  2010) Verlinde claims "that gravity is a consequence of the venerable laws of thermodynamics which describe the behavior of heat and gases."  Continuing we read "gravity is simply a byproduct of nature's propensity to maximize disorder." The analogy with 'hair fizzles'  couldn't be more adapt: it actually makes your hair want to stand up straight! 

Mustering the Courage to Cross the Schwarzschild Radius

Even before the appearance of Einstein's definitive paper on the General Theory of Relativity, Schwarzschild solved Einstein's equations on the assumptions that the space was empty, and that light rays could arrive and depart from a central point mass. Furthermore, it was assumed to be differentiable everywhere.

Can Kepler's Third Law be used to Derive the Schwarzschild Metric?

In a recently published book, "Reflections on Relativity",  Kevin Brown (which  has been on the internet for several years) derives the Schwarzschild metric from Kepler's third law without recognizing that it violates  Kepler's second law. In fact, the violation of Kepler's second law is necessary in order to derive the deflection of light about a massive  body and the  precession of elliptical orbits. 

Why Pressure does not fit into General Relativity

In 1934 Milne and McCrea [Quart. J. Math.  5 (1934) 73-80] made a startling discovery that still is not fully resolved. In Harrison's [Cosmology (Cambridge U. P., 2000), 2nd ed. p.326] words: "Why should Newtonian theory and general relativity, when applied to a uniform universe, yield identical results? At best, Newtonian theory is only approximately true, and yet in this most unlikely of all applications it gives the correct result." Milne and McCrea derived the Friedmann-Lemaitre equations for the expansion rate of the universe at zero pressure.

Inflation: Mixing First and Second Order Phase Transitions

Cosmologists confuse first and second order phase transitions. They are, in fact, mutually exclusive. What is even worse is that if the early universe was expanding adiabatically, the product of the radius and temperature is an adiabatic invariant. In the two phase region the volume can be changed without changing the pressure. The pressure is a sole function of the temperature. The adiabatic condition destroys all this, and, hence, there can be no latent heat of condensation or evaporation.