Fact Check: Minnesota authorities used LRAD sound weapon on anti-ICE protesters. But that's not the full story

In extreme cases, sonic weapons can cause nausea, dizziness, and even permanent damage. In this case, officials used it to ...
IEEE

Effect of Some Structural Parameters on the Firing Stability of the PKMS Machine Gun when Firing with Complicated Boundary Conditions

Abstract: In this article, a small automatic weapon mounted on the tripod (PKMS machine gun) was taken as the research object to analyze the firing stability in case of burst firing. A rigid-flexible ...
IEEE

Characterization of Underwater Air Gun Sound Propagation Modes in the Shanwei Region

Abstract: This study examines the impact of different seawater and seafloor characteristics on the propagation modes using the fluid-solid coupled modal equation. The dispersion curves show the ...