Episodes

  • The Surgeon Who Operated on His Own Reflection

    The Surgeon Who Operated on His Own Reflection
    Jun 19 2026
    In 1929, a young German cardiologist named Werner Forssmann threaded a rubber catheter through his own arm vein and into his beating heart — then walked to the X-ray department to photograph his proof. His colleagues called it madness, his hospital fired him, and the medical establishment buried the idea for a decade. Today, cardiac catheterization saves millions of lives a year, and the story of how it got there is equal parts recklessness, institutional cowardice, and the stubborn physics of blood. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    29 mins
  • The Woman Who Froze Time in a Fern

    The Woman Who Froze Time in a Fern
    Jun 18 2026
    In 1912, a Serbian mathematician named Milutin Milanković set out to calculate the temperature of every planet in the solar system using nothing but pencil, paper, and a theory that nearly everyone ignored for fifty years. Then a geologist cracked open an ice core in the 1970s and found his numbers buried in the ancient sediment — almost exactly right. This is the story of how one man's obsessive arithmetic predicted Earth's ice ages from a prison cell during World War One, and why the climate cycles he described may determine the fate of human civilization. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    31 mins
  • The Man Who Tasted the Age of the Earth

    The Man Who Tasted the Age of the Earth
    Jun 17 2026
    In 1953, a 23-year-old graduate student named Stanley Miller filled a glass flask with methane, ammonia, and water vapor, ran electricity through it for a week, and produced the chemical building blocks of life — in a lab, from scratch. Nobody told him it would work. His advisor Harold Urey almost didn't let him try. This is the story of how a simple, almost reckless experiment cracked open one of science's oldest wounds: where did life actually come from? Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    24 mins
  • The Woman Who Caught Lightning in a Test Tube

    The Woman Who Caught Lightning in a Test Tube
    Jun 15 2026
    In 1938, a physicist named Lise Meitner was taking a winter walk in the Swedish woods when she realized her former colleagues had accidentally split the atom—and didn't even know it. Her insight, scribbled in the snow with a stick, would unlock the nuclear age and change the course of human history. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    12 mins
  • The Magnet That Swallowed Physics

    The Magnet That Swallowed Physics
    Jun 14 2026
    In 1820, a Danish professor's lecture demonstration went sideways when a compass needle twitched near a wire—and suddenly electricity and magnetism weren't separate forces anymore. This accident didn't just unite two phenomena; it revealed that light itself is an electromagnetic wave, setting the stage for everything from radio to quantum mechanics. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    20 mins
  • The Sound of Stars Dying

    The Sound of Stars Dying
    Jun 13 2026
    In 1967, a Cambridge graduate student noticed something odd in her radio telescope data—a signal so regular it seemed artificial. What Jocelyn Bell Burnell discovered wasn't aliens, but something far stranger: the lighthouse beams of collapsed stars spinning 700 times per second, revealing the most extreme physics in the universe. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    19 mins
  • The Fever That Saved Us

    The Fever That Saved Us
    Jun 12 2026
    In 1928, Alexander Fleming left a petri dish uncovered by accident and returned to find something extraordinary: a mold that could kill bacteria. But the real story of penicillin isn't about one eureka moment—it's about a decade of failed experiments, a desperate wartime race, and the unlikely team of scientists who turned Fleming's moldy dish into the drug that would save more lives than any other in human history. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    15 mins
  • The Woman Who Mapped the Stars

    The Woman Who Mapped the Stars
    Jun 11 2026
    In 1925, a young graduate student's careful measurements of starlight revealed that our entire universe was far stranger and more vast than anyone imagined. Henrietta Swan Leavitt's meticulous work with variable stars became the cosmic ruler that would forever change how we measure the heavens—and accidentally opened the door to discovering that everything around us is flying apart. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    18 mins