
The Disappearing Spoon: a science history podcast with Sam Kean
A topsy-turvy science-y history podcast by Sam Kean. I examine overlooked stories from our past: the dental superiority of hunter-gatherers, the crooked Nazis who saved thousands of American lives, the American immigrants who developed the most successful cancer screening tool in history, the sex lives of dinosaurs, and much, much more. These are charming little tales that never made the history books, but these small moments can be surprisingly powerful. These are the cases where history gets inverted, where the footnote becomes the real story.
Latest episodes

Oct 18, 2022 • 23min
The Debaucherous Legacy of Johnny Appleseed
The Johnny Appleseed of Disney fame was complete bunk. He brought not wholesome apples to people, but liquor—and lots of it, all thanks to the bizarre biology of this misunderstood fruit...

Oct 11, 2022 • 20min
The Most Evil Molecule
It fueled slavery, as well as the Nazi death machine. It kills millions of people every year through cancer and heart disease. And you almost certainly have some in your home. That’s the legacy of sugar...

Oct 4, 2022 • 23min
The Life-Saving Rat Poison
Warfarin was the best rat poison in history. It’s also, now, one of the most important, life-saving—and freakishly unlikely—drugs in the history of medicine...

Sep 27, 2022 • 20min
The Making of a Lobotomist
Dr. Walter Freeman blamed himself for the death of his favorite son. But instead of reflecting or growing personally, he used that death to become the most notorious lobotomist in the history of medicine...

Jul 12, 2022 • 25min
Icepick Surgeon bonus excerpt on the making of the Unabomber
A bonus excerpt from my book The Icepick Surgeon on the making of the Unabomber, through a cruel, unethical psychology experiment at Harvard University...

May 10, 2022 • 23min
The Murderer Who Made Movies Possible
Like Leonardo and Albrecht Dürer before him, photographer Eadweard Muybridge was a legendary pioneer in both art and science. He was also a cold-blooded murderer.

May 3, 2022 • 20min
Dr. Jekyll, Mr. Hyde, and the Irish Giant
Charles Byrne was an eight-foot Irish giant ️who loved a beer or 3 with the lads. His funeral became a legendary party—as well as one of biggest scandals in science history, when a famous anatomist named John Hunter stole his body for dissection.

Apr 26, 2022 • 22min
The Screwiest—and Perhaps Most Original—Idea of the 20th Century
The New York Times one credited biologist Edward Knipling with “the most original idea of the 20th century.” What was it? A way to fight the screwworm, the vilest parasite on earth—and maybe stop malaria, the deadliest disease in human history, too.

Apr 19, 2022 • 24min
The Bird with Four Sexes
What a strange little sparrow can teach us about love, sex, human biology, and a whole lot more...

Apr 12, 2022 • 21min
When the Brain Deceives Itself
Can we ever truly lie to ourselves? Actually, yes—just ask Woodrow Wilson and William O. Douglas. They’re two famous examples of a bizarrely common neurological disorder. One that you might have fallen victim to yourself...