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Extras

    Video thumbnail: The Mystery of Matter  Joseph Priestley | A Momentous Encounter

    The Mystery of Matter

    Joseph Priestley | A Momentous Encounter

    See how Priestley’s friendship with Benjamin Franklin led to his own career in science.

    Joseph Priestley | A Momentous Encounter

    Video thumbnail: The Mystery of Matter First Look | Priestley & Lavoisier

    The Mystery of Matter

    First Look | Priestley & Lavoisier

    Watch how the discovery of oxygen by this odd couple triggers the search for new elements.

    First Look | Priestley & Lavoisier

    Video thumbnail: The Mystery of Matter Antoine Lavoisier | Lavoisier’s Better Half

    The Mystery of Matter

    Antoine Lavoisier | Lavoisier’s Better Half

    Meet Marie Anne, Antoine Lavoisier’s young wife and most important collaborator.

    Antoine Lavoisier | Lavoisier’s Better Half

    Video thumbnail: The Mystery of Matter Humphry Davy | Davy’s Greatest Failure

    The Mystery of Matter

    Humphry Davy | Davy’s Greatest Failure

    Learn about Humphry Davy's discovery of laughing gas and its painkilling effects.

    Humphry Davy | Davy’s Greatest Failure

    Video thumbnail: The Mystery of Matter Dmitri Mendeleev | The Element Mendeleev Never Accepted

    The Mystery of Matter

    Dmitri Mendeleev | The Element Mendeleev Never Accepted

    Discover why radium was the one element whose properties Dmitri Mendeleev never accepted.

    Dmitri Mendeleev | The Element Mendeleev Never Accepted

    Video thumbnail: The Mystery of Matter Marie Curie | The Radium Craze

    The Mystery of Matter

    Marie Curie | The Radium Craze

    View how radium’s ability to glow in the dark inspired a wave of dubious products.

    Marie Curie | The Radium Craze

    Video thumbnail: The Mystery of Matter First Look | Humphry Davy

    The Mystery of Matter

    First Look | Humphry Davy

    See how Humphry Davy entered the search for new elements with by discovering laughing gas.

    First Look | Humphry Davy

    Video thumbnail: The Mystery of Matter Glenn Seaborg | A Chemist Goes to War

    The Mystery of Matter

    Glenn Seaborg | A Chemist Goes to War

    Explore how a young Berkeley chemistry instructor created the element that ended WWII.

    Glenn Seaborg | A Chemist Goes to War

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