Mike Rugnetta and Atlas Obscura‘s Dylan Thuras have a fascinating discussion on the use of sound in war and at what point sound becomes a weapon. Among the topics covered:

- World War I “sound mirrors” (giant concrete parabolas that ineffectively tracked incoming planes)
- Project Disperse
- The Mosquito
- “Tunnel chicken”
- LRAD
- So-called “less than lethal” technology
- Humankind’s unintentional sound war on the animal population