For a list of the incompatibilities between the General Theory of Relativity and Quantum Mechanics see Dr. Mendel Sach's website http://www.compukol.com/mendel/ or his book "Einstein vs. Bohr".
List on website:
A) Principle of complementarity, implying 'pluralism', versus principle of...
History of relativity
In reading this post I was reminded of the Proper Particle Mechanics of D. Hestenes. However, there are some serious problems with the historical exposition given here regarding the development of STR. STR existed before Minkowski got into the picture. For a while Einstein...