The idea is to investigate ways to make objects 'invisible' to earthquakes by applying some of the same principles involved in the light-bending cloaking technique used to render objects invisible. The cloaking technique works by bending light of specific frequencies around the object meant to be hidden. I propose the idea of drilling a precisely tuned system of boreholes around an earthquake-prone city (or vital building like a power plant or hospital). In theory, the boreholes...