Principles of Equivalence: Their Role in Gravitation Physics and Experiments that Test Them

Principles of Equivalence: Their Role in Gravitation Physics and Experiments that Test Them- Article by Mark P. Haugan and Claus Lämmerzahl about the different versions of the equivalence principle (one of the basic assumptions that led to general relativity) and the various experiments that have been performed to test it, as well as those that are planned for the future.