subduction zones in the tectonic plates,,as the plates move material is pushed down and the pressure is released at volcano's Source(s): http://en.wikipedia.org/wiki/Volcanos http://en.wikipedia.org/wiki/Tectonic_pl...
A body cavity search is either a visual search or a manual internal inspection of body cavities for prohibited materials (contraband), such as illegal drugs, money, jewelry, or weapons.Body cavities used for concealment include nostrils, ears, mouth, navel, penis (urethra and foreskin) or vagina, and rectum.n a thorough visual body cavity search, a flashlight is used to illuminate body orifices, including nostrils, ears, mouth, navel, penis (urethra and foreskin) or vagina, and rectum. Generally, the detainee is required to manipulate these body parts so that they can be examined.
An RF resonant cavity thruster is a proposed new type of electromagnetic thruster.Unlike conventional electromagnetic thrusters, they are designed to use no reaction mass, and to emit no directional radiation.he RF resonant cavity was suspended inside a liquid helium-filled dewar. The weight of the cavity was monitored by load cells. Fetta theorized that when the device was activated and produced upward thrust, the load cells would detect the thrust as change in weight.