The Long-Range Acoustic Device, or LRAD, was developed for the military for long-range communication at sea. But this ear-splitting device has also been fired on protesters across America, resulting in lawsuits and permanent hearing loss. In this episode, we explore the history, science, and effects of the so-called “sound cannon.” Featuring tech journalist Lynne Peskoe-Yang and activist Michele Lindor.
What is sound, on a fundamental level? How did animals evolve to hear? And what happens when you go faster than sound itself? In this episode, we explore the physics of sound with the legendary Bill Nye.
Synesthesia is a neurological condition where one sensory experience gets combined with another, meaning someone might hear sounds when eat, or see colors when they listen to music. So what exactly is synesthesia? And what’s it like to go through life with these unique sensory connections? Featuring the voices of neuroscientist Dr. Richard Cytowic and five people with synesthesia.
