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A device that can be used as a sonic weapon will be deployed in London for the Olympics. The American-built long-range acoustic device (LRad) can be used both as a high-powered loud speaker and to emit an ear-piercing beam of sound. The Ministry of Defense confirmed that it was among a "broad range of assets" being used by the Armed Forces to provide security during the Games. A spokesman said it would be used primarily in "loud hailer mode" in order to issue verbal warnings to any boats on the River Thames that were causing concern. London Olympics However, the LRad can emit a highly focused beam of sound at a pain-inducing 150 decibels (dB). In comparison, military jets have a take-off rating of 140 dB while instant perforation of an eardrum can occur at 160 dB.
The US army deployed LRad as a crowd control device during its struggles in post-war Iraq. More recently, it used a vehicle-mounted system against G20 protesters in Pittsburgh in 2009, driving back US demonstrators with the LRad's high-pitched sound. The devices have also been used on cruise liners to ward off Indian Ocean pirate attacks. Some models are now "man portable" backpacks that can blast alarm warnings at 137 dB, and can be used as land-based loud hailers with a range of 1km.
Originally posted by Veritas1
reply to post by Aslpride
thats what I am wondering myself. If it just an auditory cause and effect, wouldn't there be certain procedures one could take in order to protect one's ears? I have read about certain vibrations that could cause one to become paralyzed when aimed at certain parts of the body. I will see if I can find a link to them.
Extremely high-power sound waves can disrupt and/or destroy the eardrums of a target and cause severe pain or disorientation. This is usually sufficient to hit the incapacitate of a person. Less powerful sound waves can cause humans to experience nausea or discomfort. The use of these frequencies to incapacitate persons has occurred both in counter-terrorist and crowd control settings.
The U.S. Department of Defense (DOD) has demonstrated phased arrays of infrasonic emitters. The weapon usually consists of a device that generates sound at about 7 Hz. The output from the device is routed (by pipes) to an array of open emitters. At this frequency, armor and concrete walls and other common building materials allow sound waves to pass through, providing little defense. This presents logistic problems regarding operation of infrasonic weaponry without exposing operating personnel to the potentially damaging effects.
The futuristic weapons – which will attack the central nervous system of their victims – are being developed by the country’s scientists.
They could be used against Russia’s enemies and, perhaps, its own dissidents by the end of the decade.
Mr Putin added: “Such high-tech weapons systems will be comparable in effect to nuclear weapons, but will be more acceptable in terms of political and military ideology.”
Originally posted by Aslpride
I am not sure how it works, but seems sonic weapons are based on sound wave and will hurt people's ears? If yes, then what will happen to deaf people? Will it still hurt deaf people's ears?edit on 10-6-2012 by Aslpride because: (no reason given)