The Philadelphia Experiment
summer of 1943-- The experiment was allegedly based on an aspect of some unified field theory , a term coined by Albert Einstein to describe a class of potential theories; such theories would aim to describe — mathematically and physically — the interrelated nature of the forces that comprise electromagnetic radiation and gravity , in other words, uniting the fields of electromagnetism and gravity into a single field. According to some accounts, unspecified "researchers" thought that some version of this field would enable using large electrical generators to bend light around an object via refraction , so that the object became completely invisible. The Navy regarded this of military value and it sponsored the experiment. Another unattributed version of the story proposes that researchers were preparing magnetic and gravitational measurements of the seafloor to detect anom...