Essay Abstract
One of the basic postulates of fundamental physics that is ingrained in our thinking is that the photon is an elementary particle that can be represented as a mathematical point, with spin-1, but without radial extension. According to General Relativity, gravity influences the motion of light, not by acting on light itself, but by directly acting on a dynamic four-dimensional space-time continuum through which the point-like photon passively propagates. Here I present an alternative explanation of the effect of gravity on light based on the rotational as well as translational motions of the photon. By taking the mechanics out of the description of space-time, and putting it back into the quantum mechanics of light, I show that the deflection of starlight, the experimentum crucis in favor of General Relativity over Newtonian mechanics, can be explained using Newton's Law of Gravitation, Euclidean space and Newtonian time. This treatment has the advantage over General Relativity in encompassing the dynamical properties of photons that were neither known to Newton nor employed by Einstein. This interpretation, which is also applicable to the understanding of gravitational lensing, the Global Positioning System, the gravitational red shift, and black holes, may lead to a deep or "ultimate" understanding of the nature of reality.
Author Bio
Randy Wayne earned a PhD in Plant Cell Biology at the University of Massachusetts. Wayne is an Associate Professor in the Department of Plant Biology at Cornell University. He is a biophysical plant cell biologist known for his work on membrane biology, cell motility, and how plant cells perceive and respond to light and gravity. More recently, he has been working on the physical nature of light and gravity from the unique perspective of a biophysical plant cell biologist. He is the author of "Light and Video Microscopy" and "Plant Cell Biology: From Astronomy to Zoology," both published by Elsevier.