[Redwood71]

There is already crowd weapons used in violent protests in large areas and it is called sub-sonics. It was used in the 2009 G20 Pittsburgh summit, the 2014 Ferguson unrest, the 2016 Dakota Access Pipeline protest in North Dakota, among others. A long-range acoustic device has been used by the crew of the cruise ship Seabourn Spirit to deter pirates who chased and attacked the ship.

These do not cause fire and explosion but act directly on the people and animals in the blanket sights. And the severity and time of it’s use can cause anything from nausea to brain damage in a large target capacity. A similar system is called a “magnetic acoustic device” “The mosquito”. Mobile sonic devices have been used in the United Kingdom to deter teenagers from lingering around shops in target areas. The device works by emitting an ultra-high frequency blast (around 19–20 kHz) that teenagers or people under approximately 20 are susceptible to and find uncomfortable. If it was increased, it could kill with the destruction of organs and the contraction of muscle tissue, to include the heart. The guidelines for this type of weapon has been under the control of the United States Department of Defense policy on non-lethal weapons and has been in use since the 1990’s. Just no one talks about it. So boom and fire explosions are not completely needed. Invisible sound waves can do it just as well.

rwood

[VanShuyten]

“There is already crowd weapons used in violent protests in large areas and it is called sub-sonics.”

Bring on the “Brown Note” machine!

[Buckeye McFrog]

The device works by emitting an ultra-high frequency blast (around 19–20 kHz) that teenagers or people under approximately 20 are susceptible to and find uncomfortable. If it was increased, it could kill with the destruction of organs and the contraction of muscle tissue, to include the heart.

Sound in that range doesn't stun. It destroys.