The Disappearing Spoon: a science history podcast with Sam Kean cover image

The Disappearing Spoon: a science history podcast with Sam Kean

Latest episodes

undefined
Jun 24, 2025 • 28min

Dinner with King Tut audiobook preview

preorder hardcover copies of MY NEW BOOK, Dinner with King Tut, for a 20 percent discount at this link only: bit.ly/dinnerwithkingtut. Use offer code “spoon”.   This offer will EXPIRE SOON, so take advantage today!
undefined
May 27, 2025 • 21min

Why Doctors and Scientists Embraced the Nazis

preorder hardcover copies of MY NEW BOOK, Dinner with King Tut, for a 20 percent discount at this link only: bit.ly/dinnerwithkingtut. Use offer code “spoon”.   This offer will EXPIRE SOON, so take advantage today!   Nazism was a society-wide catastrophe for Germany, but some professions deserve more blame than others. In particular, there was a surprisingly large percentage of doctors and engineers among the Nazis. Sociologists and historians have now worked out why.
undefined
May 20, 2025 • 18min

Hotter than the Dickens

When Charles Dickens published Bleak House in 1852, he included a scene where one character spontaneously combusts. 🔥 🔥 🔥 Readers loved it, but one of Dickens’s good friends—a former scientist—blasted Dickens for his scientific ignorance. It ignited one of the strangest controversies in literary history. preorder hardcover copies of MY NEW BOOK, Dinner with King Tut, for a 20 percent discount at this link only: bit.ly/dinnerwithkingtut. Use offer code “spoon”.   This offer will EXPIRE SOON, so take advantage today!
undefined
May 13, 2025 • 20min

Jake Leg Blues

It was one the largest epidemics in American history: 30,000 people paralyzed over a few months in 1930. A dogged epidemiologist eventually traced the cause to adulterated bottles of an illegal liquor/medicine called “jake.” Yet the epidemic is almost completely forgotten. About the only place it survived was in blues songs... preorder hardcover copies of MY NEW BOOK, Dinner with King Tut, for a 20 percent discount at this link only: bit.ly/dinnerwithkingtut. Use offer code “spoon”.   This offer will EXPIRE SOON, so take advantage today!
undefined
May 6, 2025 • 18min

The Worst of Times, the Asbestos Times

Asbestos was once considered a miracle substance—a wonder of the modern age, due to its role in stopping the fires that once plagued every major city. Unfortunately, it also shreds people’s lungs. Most countries were willing to live with that trade-off, until a crusading doctor named Irving Selikoff made it his life's mission to get asbestos banned. preorder hardcover copies of MY NEW BOOK, Dinner with King Tut, for a 20 percent discount at this link only: bit.ly/dinnerwithkingtut. Use offer code “spoon”.   This offer will EXPIRE SOON, so take advantage today!
undefined
Apr 29, 2025 • 19min

Human Photosynthesis

Rickets was once a devastating disease: up to 90 percent of the children showed symptoms in some cities, including bent spines and bowed legs, and it resulted in many women dying during childbirth. The search for the cause of rickets took decades, and ended with a startling discovery—that much like plants, human beings had the ability to photosynthesize. preorder hardcover copies of MY NEW BOOK, Dinner with King Tut, for a 20 percent discount at this link only: bit.ly/dinnerwithkingtut. Use offer code “spoon”.   This offer will EXPIRE SOON, so take advantage today!
undefined
Apr 22, 2025 • 19min

The Sad Story of Darwin’s Self-Procleimed “Stupidest” Child

Leonard Darwin had a lot to live up to. He was the son of the legendary Charles, and several siblings proved to be brilliant scientists as well. But Leonard never quite measured up as a mediocre military officer and two-bit politician. In his fifties, he pronounced his life a “failure.” But in his sixties, he finally found his calling—the dark pseudoscience of eugenics, a field he embraced in part to prove that he wasn’t the failure he imagined. preorder hardcover copies of MY NEW BOOK, Dinner with King Tut, for a 20 percent discount at this link only: bit.ly/dinnerwithkingtut. Use offer code “spoon”.   This offer will EXPIRE SOON, so take advantage today!
undefined
Apr 15, 2025 • 19min

The Birds and the Bees and the Frogs

A young woman in the mid-1900s couldn’t take an at-home pregnancy test. Instead, she sent a vial of urine to a clinic, where a technician would, of all things, inject it into a frog, and hormones in the urine would cause the frog to lay eggs. This frog-based test was far faster, easier, and cleaner than any pregnancy test before, and it shifted power for family planning from doctors to women themselves. preorder hardcover copies of MY NEW BOOK, Dinner with King Tut, for a 20 percent discount at this link only: bit.ly/dinnerwithkingtut. Use offer code “spoon”.   This offer will EXPIRE SOON, so take advantage today!
undefined
Apr 8, 2025 • 19min

The Would-Be Saint's Battle over Down Syndrome

After scientists had a handle on how many chromosomes humans have, other researchers began exploring whether certain ailments might be caused by chromosomal abnormalities. To this end, a French cardiologist discovered that Down syndrome was caused by the presence of an extra chromosome in humans. But a colleague stole credit for her work, and the battle over their legacies continues to this day, in part because the colleague is on track to become a certified Catholic saint. preorder hardcover copies of MY NEW BOOK, Dinner with King Tut, for a 20 percent discount at this link only: bit.ly/dinnerwithkingtut. Use offer code “spoon”.
undefined
Apr 1, 2025 • 19min

The Battle over Human Chromosomes

It seems like a simple question: how many chromosomes do human beings have? But getting an accurate count proved surprisingly hard for much of last century. In fact, virtually every textbook once cited an incorrect number, until in 1956, a fiery Indonesian scientist finally determined the true count—and had to battle his boss over who would receive credit for this legacy-making discovery. preorder hardcover copies of MY NEW BOOK, Dinner with King Tut, for a 20 percent discount at this link only: bit.ly/dinnerwithkingtut. Use offer code “spoon”.

The AI-powered Podcast Player

Save insights by tapping your headphones, chat with episodes, discover the best highlights - and more!
App store bannerPlay store banner
Get the app