Cavitabow

The cavitabow is a weapon resembling a bow, used primarily by Impendians, which when released creates an intense pressure wave inside progressively smaller chambers, eventually resulting in a region of sustained sonoluminescence that is expelled from the final chamber at high speed.

Super-heated, luminous matter expelled from the bow is capable of traveling through virtually any material without significant resistance until cooled, typically after several seconds. Longer-range cavitabows, 'sono bows,' use a more complex mechanism and can achieve a longer period of sonoluminescence, up to 12 seconds.

Most cavitabows kept as personal weapons are multi-purpose. The limbs of the bow, string, nock (attached to the compression mechanism), and compression chambers can all be concealed, retracted back into the grip, which itself can serve as reinforced knuckles. Other extensions can include revolver and pistol chambers, knife blades, and, in more elaborate instances, a quickforge blade.