Anthony Appleyard
Member
See https://news.softpedia.com/news/A-Weapon-of-the-Future-Ultrasound-Using-Gun-81414.shtml for a non-lethal ultrasound gun, for use on land. But from what I have heard, powerful ultrasound underwater can be lethal, as water is a thousand times as dense as atmospheric air, and thus ultrasound underwater could carry much more power than out of water. Have any of you heard of such an underwater weapon?
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