Abstract: A system 300 for sensing spontaneous or localized changes in an electromagnetic field and generating an indication in response comprises an EMF change sensor 320 configured to sense a momentary and localized change in an ambient electromagnetic field and generate an EMF change detection signal in response. An electromagnetic peripheral adapter or EMF typewriter interface circuit 330 is configured to detect the EMF change detection signal generates a selected plurality of momentary communication state-change signals and a mouse signal encoded for communication with a computer 350 which is programmed to generate momentary communication prompts for playback or display and to receive the EMF typewriter Pointer signal. The computer 350 is also programmed to correlate each momentary communication state-change signal encoded in the EMF typewriter Pointer signal with a momentary communication prompt to identify a sensed indicia or command from the EMF change detection signal and to display a command.

Abstract: A system 300 for sensing spontaneous or localized changes in an electromagnetic field and generating an indication in response comprises an EMF change sensor 320 configured to sense a momentary and localized change in an ambient electromagnetic field and generate an EMF change detection signal in response. An electromagnetic peripheral adapter or EMF typewriter interface circuit 330 is configured to detect the EMF change detection signal generates a selected plurality of momentary communication state-change signals and a mouse signal encoded for communication with a computer 350 which is programmed to generate momentary communication prompts for playback or display and to receive the EMF typewriter Pointer signal. The computer 350 is also programmed to correlate each momentary communication state-change signal encoded in the EMF typewriter Pointer signal with a momentary communication prompt to identify a sensed indicia or command from the EMF change detection signal and to display a command.

Abstract: The fuel air explosive (FAE) device of this invention is equipped with a vity responsive unitary burster-detonator positioned in the liquid fuel, wherein the burster is heavier than the liquid fuel and the cloud detonator is lighter than the liquid fuel to provide for automatic means to orient the burster at the bottom of the fuel container and to simultaneously orient the cloud detonator at the top of the fuel container with hand operated release means on the exterior of the device to activate the burster and cloud detonator.