Abstract: Aspects of the present disclosure relate to generation of a semi-coherent gravitational wave beam and related apparatus, systems, and methods, such as for at least gravitational wave communication. In one or more embodiments, a gravitational wave generator includes a generator frame, and a first rotatable mass mounted to the generator frame. The first rotatable mass is rotatable about a generator axis and rotatable relative to the generator frame to generate one or more gravitational waves. The gravitational wave generator includes one or more wave guide stages that include two or more guide assemblies. The two or more guide assemblies each include a guide frame, and a second rotatable mass mounted to the guide frame. The second rotatable mass is rotatable about a guide axis and rotatable relative to the guide frame to at least partially focus the one or more gravitational waves into one or more collimated beams.

Abstract: Aspects of the present disclosure relate to methods, systems, and apparatus for wireless gravitational wave communication. In one or more embodiments, a method of wireless gravitational wave communication includes generating one or more gravitational wave signals at a first site. The generating of the one or more gravitational wave signals includes rotating and/or angularly accelerating one or more rotatable masses at a plurality of states. The method includes transmitting the one or more gravitational wave signals to a receiver in a wireless manner, and receiving the one or more gravitational wave signals at a second site using the receiver. The method includes determining (such as by decoding) information from the one or more gravitational wave signals.

Abstract: A light switch extension for use with a conventional toggle type wall switch permits ready on and off operation of the switch by children, handicapped individuals and others. The extension includes a flexible component which engages the light switch toggle at least on the upper and lower surfaces thereof and is secured there by a pin passing through the toggle or by alternate devices such as cooperating bosses and recesses. The flexible component is secured to a vertically depending operator assembly by a suitable fastener such as a screw or by other agencies such as an adhesive. A first portion of the operator assembly is a rigid rod and the second portion is a flexible element such as a helical spring which is capable of axially transmitting sufficient force to the flexible component and switch toggle to turn it on and off but which is radially or laterally flexible such that radially or laterally applied forces will harmlessly deflect it.