Presenting: Twenty Thousand Hertz

Presenting: Twenty Thousand Hertz

Author: Pushkin Industries November 18, 2025 Duration: 29:13

When Satanic Panic ripped through America, rock music was in the crosshairs. Could songs contain secret backwards messages urging children to take drugs and worship the devil?

This special episode is from Twenty Thousand Hertz, a podcast all about the rich world of sound.

Follow Twenty Thousand Hertz wherever you get your podcasts. https://www.20k.org/

This episode mentions death by suicide. If you are suffering emotional distress or having suicidal thoughts, support is available - for example, from the 988 Suicide & Crisis Lifeline in the US, or the Samaritans in the UK on 116 123

See omnystudio.com/listener for privacy information.


There’s a reason we share scary stories-not just to entertain, but to learn. Cautionary Tales with Tim Harford applies that same instinct to the real world, digging into history’s most fascinating blunders and disasters to uncover what they can teach us today. Brought to you by Pushkin Industries, each episode feels like a masterfully told story, where Tim Harford-known for his work at the Financial Times, the BBC, and as author of “The Data Detective”-unpacks a single event. You’ll hear about catastrophic business decisions, scientific hubris, and public policy fiascos, all presented with a blend of narrative flair and sharp analysis. This isn’t just a history podcast; it’s a deep dive into human nature, decision-making, and the unexpected consequences that ripple from a single mistake. Listening feels like having a brilliantly insightful guide explain why things went so terribly, or hilariously, wrong. The stories are gripping on their own, but the real value lies in the lessons they make tangible for our own lives and choices. If you’ve ever wondered how a group of smart people could make a disastrous call, or how a seemingly small error snowballed into legend, this is the podcast for you. New episodes arrive every Friday, ready to transform a true tale of error into a lasting piece of wisdom.
Author: Language: en-us Episodes: 219

Cautionary Tales with Tim Harford
Podcast Episodes
Supersonic Nazi Vengeance: V2 Rocket (Part 1) [not-audio_url] [/not-audio_url]

Duration: 36:16
At the height of World War Two, British intelligence began receiving reports that the enemy was developing a rocket weapon. The idea seemed fantastical — resources in Nazi Germany were scarce and a rocket-building progra…
Tenerife: The Most Deadly Air Disaster [not-audio_url] [/not-audio_url]

Duration: 4:02
Teaser: In 1977, two planes collided on the runway at Tenerife Airport. Why did the crash happen? And, given that it took place on the ground, why didn't more people escape? In this new two-parter, Tim Harford explores t…
DANGER: Rocks Ahead! (Classic) [not-audio_url] [/not-audio_url]

Duration: 34:19
Torrey Canyon was one of the biggest and best ships in the world - but its captain and crew still needlessly steered it towards a deadly reef known as the Seven Stones. This course seemed like madness, but the type of th…
When Stalin Killed the Weekend (with The Happiness Lab) [not-audio_url] [/not-audio_url]

Duration: 36:29
What if you could never have the same day off as your family and friends? Would you quit your job? What if it was the murderous dictator Joseph Stalin giving you the order? The Soviet Union wanted its factories to run ev…
How the Radium Girls Fought Back [not-audio_url] [/not-audio_url]

Duration: 40:46
Cautionary Book Club: Mollie Maggia's dentist planned to remove a painful abscess from her mouth. But to his horror, her jawbone disintegrated at his touch, crumbling and splintering until it resembled ash. Like hundreds…
Glowing Peril: The Magical Glitter That Poisoned a City [not-audio_url] [/not-audio_url]

Duration: 35:58
In Goiânia, Brazil, a junk dealer acquires an old medical device from two scrap-metal scavengers. The device itself isn't useful, but it comes with precious lead which will fetch him good money. There's something else in…
George Washington's Beard of Beetles (with The Dollop) [not-audio_url] [/not-audio_url]

Duration: 28:05
Cautionary Conversation: Just before Christmas 1799, President George Washington was riding around his country estate, Mount Vernon, when it began to snow. When he arrived home, guests were waiting for him. Known for his…
Laser Versus Parchment: Doomsday for the Disc [not-audio_url] [/not-audio_url]

Duration: 39:27
William the Conqueror undertook a remarkably modern project. In 1086, he began compiling and storing a detailed record of his realm: of where everyone lived, what they did and where they came from. 900 years later, the B…
Cautionary Tales Presents The Dream [not-audio_url] [/not-audio_url]

Duration: 45:58
On The Dream, host Jane Marie gets to know the life coaches and gurus who claim they know the secret to living our best lives. Is it all in our mindset? Or our privilege? Or are we all under a spell? Tim Harford is joine…