Chinese Scientists Have Developed a Handheld Sonic Weapon for Crowd Control – My Comments


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[In the days of Apartheid in South Africa I heard somewhere – can't remember where any more – that they were working on a helicopter based mechanism to knock people (blacks) unconscious with South. To my knowledge the concept did work. But I have no more details. 

I see however that the USA has had vehicle based sonic weapons since 2009. I don't think this technology is that new. 
I'm curious about the Chinese invention and I wonder if there isn't some deception involved in this. Jan]

China has developed the world’s first portable sonic gun for riot control, the Chinese Academy of Sciences said.

The rifle-shaped instrument, which was jointly developed with military and law enforcement, is designed to disperse crowds using focused waves of low frequency sound, the academy’s Technical Institute of Physics and Chemistry website said on Wednesday.

The device’s “biological effect” would cause extreme discomfort, with vibrations in the eardrums, eyeballs, stomach, liver, and brain, scientists said.

Studies dating to the 1940s found that low frequency sound energy could, depending upon intensity and exposure, cause dizziness, headaches, vomiting, bowel spasms, involuntary defecation, organ damage and heart attacks.

a person sitting in front of a computer: Professor Xie Xiujuan discusses the portable sonic rifle (circled) with the government science panel sent to evaluate it. Photo: CAS© CAS Professor Xie Xiujuan discusses the portable sonic rifle (circled) with the government science panel sent to evaluate it. Photo: CAS

Sonic weapons are typically large and have to be mounted on vehicles. Until the Chinese development, which has no moving parts, they were powered by electricity to drive a magnetic coil to generate energy. This meant they needed a large and stable source of power.

The Chinese government launched the sonic weapon programme in 2017 and its conclusion is unlikely to be related to the months of anti-government protests in Hong Kong.

Professor Xie Xiujuan, lead scientist on the project, said the device was powered by a tube-shape vessel containing an inert gas. When heated, the gas particles vibrate and a deep, monotonous sound is emitted.

The prototype had passed field and third-party tests and the project team has completed its assessment of the device’s effects on the body, the academy said.

On September 4, a panel of scientists and engineers representing the Ministry of Science and Technology met in Beijing and approved a design developed by Xie’s team for mass production.

“The panel suggested that the fruit of the project should be transformed into practical equipment as soon as possible,” the academy said.

In a photograph on the institute’s website, the device could be seen on a meeting room table as the experts deliberated. It looked similar to a rifle, with a stock, trigger and barrel.

a man standing in front of a car: A protester looks at an acoustic crowd dispersal device during a demonstration outside Poland’s ministry of economy building in Warsaw. Photo: Alamy© Alamy A protester looks at an acoustic crowd dispersal device during a demonstration outside Poland’s ministry of economy building in Warsaw. Photo: Alamy

Xie refused to reveal details of the device’s frequency or its effective range. She also declined to comment on its uses without approval from higher authorities.

So far, there have been no reports of Chinese soldiers or law enforcement officers using such equipment.

This article originally appeared on the South China Morning Post (SCMP), the leading news media reporting on China and Asia. For more SCMP stories, please download our mobile app, follow us on Twitter, and like us on Facebook.

Source: https://www.msn.com/en-sg/news/other/chinese-scientists-develop-handheld-sonic-weapon-for-crowd-control/ar-AAHxxDm



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