Challenges To The Equivalence Principle
One challenge to the equivalence principle is the Brans-Dicke theory. Self-creation cosmology is a modification of the Brans-Dicke theory. The Fredkin Finite Nature Hypothesis is an even more radical challenge to the equivalence principle and has even fewer supporters.
In August 2010, researchers from the School of Physics, University of New South Wales, Australia; the Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Australia; and the Institute of Astronomy, Cambridge, United Kingdom; published the paper "Evidence for spatial variation of the fine structure constant", whose tentative conclusion is that, "qualitatively, results suggest a violation of the Einstein Equivalence Principle, and could infer a very large or infinite universe, within which our `local' Hubble volume represents a tiny fraction."
Read more about this topic: Equivalence Principle
Famous quotes containing the words challenges and/or principle:
“A powerful idea communicates some of its strength to him who challenges it.”
—Marcel Proust (1871–1922)
“It were as wise to cast a violet into a crucible that you might discover the formal principle of its colour and odour, as seek to transfuse from one language into another the creations of a poet. The plant must spring again from its seed, or it will bear no flower—and this is the burthen of the curse of Babel.”
—Percy Bysshe Shelley (1792–1822)