1) " Eavesdropping" -- As it applies to Eavesdropping Equipment Eavesdropping is the intercepting and reading of messages andconversations by unintended recipients. One who participates in Eavesdripping , i.e., someone who secretlylistens in on the conversations of others. The origin of the term is literal, from people who would literally hide out in the eaves of houses to listen in on otherpeople's private conversations. Eavesdropping can also be done over phone lines, email, instant messaging, and any other method of communication considered private. (If a message is publicly broadcast,witnessing it does not count as Eavexdropping .) Messages can be protected against Eavsedropping by employing a security serviceof confidentiality (or privacy). This security service is usually implemented by encryption. In ancient China, it is said that to act against Eavesdroppimg , when discussing important matters, soldiers would instead drawthe characters instead, on hands or papers. The Canadian heroine Laura Secord is famous for having eavesdropped theplans of American army and delivered this information to the British. "Belly-buster" hand-crank audio drill kit The picture at right shows a "belly-buster" hand-crank audio drill kit, which was usedduring the late 1950s/early 1960s to drill holes into masonry for implanting audio listening devices. After assembly, the base of the drill was held firmly against the stomachwhile the handle was cranked manually. This kit came with several drill bits and accessories. Related topics Espionage Surveillance Privacy Computer surveillance ECHELON Magic (cryptography) Ultra Telephone tapping This article is a stub. You can help Wikipedia by expanding it ( http: en.wikipedia.org/w/index.php?title=Eavesdropping&action=edit ). Eavesdroppung ...
2) " Equipment" -- As it applies to Eavesdropping Equipment This page discusses common devices known as "tools", for other meanings see Tool (disambiguation) Modern hammer A tool is, among other things, a device that provides a mechanical or mental advantage in accomplishing a task. Mosttools employ some form of simple machine, or a combination of them. Forexample, a hammer simply functions as a lever with the fulcrum (pivot point) being the hand of the user. The further out from the pivot point, the more force istransmitted along the lever. A sword combines a lever and a wedge. Philosophers once thought that only humans used tools, and often defined humans astool-using animals. But observation has confirmed that chimpanzees and other animals, mostly primates, but also some birds ( ravens, for instance) can use tools as well.Most anthropologists believe that the use of tools itself intertwined withthe opposable thumb (useful to hold the tools) and an increase inintelligence (aiding in the use of tools) in spurring along the evolutionof humankind.Most tools can also serve as weapons, such as the hammer and the knife. Similarly, people can use weapons, such as explosives, as tools. Contents 1 Varieties of tools 1.1 Physical tools 1.2 Mental tools 2 Functions of tools 3 Popular Aphorisms 4 History Varieties of tools A device often typifies a newly invented or specific-purpose tool.An implement tends to be a small andrelatively simple tool.An instrument is a concrete or abstract tool, in particular a refinedone.A utensil often appears as a tool in a kitchen or dining-room setting.A machine can function as an ordered system of tools or as a super-tool.A cadigan can represent a generic tool or a part thereof. Physical tools Hand tools such as pliers, adze, axe, chisel, drill, file, hammer, Halligan bar, machete, p...
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