NOVA

Thought Experiment: The Infinite Hilbert's Hotel

In a thought experiment first proposed in the 1920s, the Hilbert’s Hotel has an infinite number of rooms and helps demonstrate some of the strange properties of infinity.

Thought Experiment: The Infinite Hilbert's Hotel

4m 9s

  • Hunt for the Oldest DNA: asset-mezzanine-16x9

    Hunt for the Oldest DNA

    S51 E4 - 53m 10s

    For decades, scientists have tried to unlock the secrets of ancient DNA. Follow the dramatic quest to recover DNA millions of years old and reveal a lost world from before the last Ice Age.

  • Building the Eiffel Tower: asset-mezzanine-16x9

    Building the Eiffel Tower

    S51 E3 - 53m 29s

    Explore the revolutionary engineering behind Paris’s iconic landmark. Completed in 1889, the iron tower smashed the record for the tallest structure on Earth, ushering in a new age of global construction that reached for the skies.

  • Easter Island Origins: asset-mezzanine-16x9

    Easter Island Origins

    S51 E2 - 53m 17s

    The giant stone heads of Easter Island have inspired theories for centuries. Now, new research reveals intriguing evidence of the origins and inspirations of the ancient Rapanui people who created the iconic monoliths.

WETA Passport

Stream tens of thousands of hours of your PBS and local favorites with WETA Passport whenever and wherever you want. Catch up on a single episode or binge-watch full seasons before they air on TV.