Since World War I, countries around the world have been broadcasting mysterious numerical messages via shortwave radio. Though concrete evidence is hard to come by, the general consensus is that these coded messages are meant for undercover agents operating abroad. And one particular Russian station may have an even more sinister purpose. Featuring computer engineer Andrus Aaslaid, historian Maris Goldmanis, and documentary photographer Lewis Bush.
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.
We've all heard the iconic recordings from the Apollo missions. But how exactly does NASA manage to run live audio between Earth and the moon? And how might we chat with astronauts on Mars and beyond? Featuring Astronaut Peggy Whitson, NASA Audio Engineer Alexandria Perryman, and Astrophysicist Paul Sutter.
Technology has the power to transform the way our world sounds. It could even give us entirely new ways to experience our surroundings. In this episode, we explore the sounds of the future, and how can we use the tools we already have to build a better sounding world. Featuring Rose Eveleth, Creator and Host of the podcast Flash Forward, Acoustician Andrew Pyzdek, and Architect Chris Downey.
People with perfect or "absolute" pitch hear every single sound as precise musical notes. Is this extraordinary talent a blessing or a curse? In this episode, we dive into the neuroscience, pluses and pitfalls of absolute pitch. Featuring neuroscientist Daniel Levitin and Grammy-winning musician Jacob Collier.
