Abstract: An apparatus comprising the use of at least two or more vertically disposed tubular structures with each tube filled with water, and having a nozzle-like conduit at one end. Inside each tube is a sealed cylinder or float for containing either gas or water. When gas is introduced into the float positioned at the bottom of the tube, the float begins to ascend inside the tube causing the water advancing ahead of the rising float to become increasingly more pressurized due to the buoyancy effect. Maximum or near maximum pressure levels are reached when the water advancing ahead of the rising float reaches the top of the tube and is forced through the narrow conduit and the interconnected flow line. At the top, the gas in the float is replaced with water compelling the float to sink to or near the bottom of the tube where the water is replaced with gas, and the process is repeated.

Abstract: A system and method to monitor the specific location of a person, pet or item of personal property by employing elements that enable the user to pinpoint both the distance and the direction of the person or object being monitored relative to the position of the monitoring or transmission unit (the "source"), comprising a tracking transceiver unit, which tracks and monitors the person or object, and the target transceiver unit, which is worn or affixed to the person or object being monitored. The tracking transceiver unit broadcasts a signal to a target transceiver unit, which, upon receiving the signal, will then broadcast a response signal back to the tracking transceiver unit.