Ideas

CBC Discover & Learn

IDEAS is a place for people who like to think. If you value deep conversation and unexpected reveals, this show is for you. From the roots and rise of authoritarianism to near-death experiences to the history of toilets, no topic is off-limits. Hosted by Nahlah Ayed, we’re home to immersive documentaries and fascinating interviews with some of the most consequential thinkers of our time. With an award-winning team, our podcast has proud roots in its 60-year history with CBC Radio, exploring the IDEAS that make us who we are.  New episodes drop Monday through Friday at 5pm ET.

  1. 15時間前

    Could resetting the body's clock help cure jet lag?

    Kritika Vashishtha has been pursuing a cure for jet lag and it's possible she's found the answer. The Canadian aerospace engineer recently invented a variety of light that fools human bodies into switching time zones while aboard an aircraft. She shows two IDEAS producers around her laboratory inside an airplane to explain how the process works. Kritika plans to direct her discoveries towards making space travel easier on astronauts. *This episode is part of our series Ideas from the Trenches, which showcases fascinating new work by Canadian PhD students. It originally aired on April 29, 2024.

    54分

  2. 1日前

    How the invention of the book shaped humanity

    If we weren't so used to having books, we would think of them as a "miracle." That's how historian Irene Vallego views what she says is humankind's greatest and most influential invention: the book. "With their help, humanity has undergone an extraordinary acceleration of history, development, and progress," she tells host Nahlah Ayed. Vallego has traced written texts back to their earliest origins and she's written a book of her own, Papyrus: The Invention of Books in the Ancient World.

    54分

  3. 2日前

    Hallelujah! Let the light of Black gospel shine 101

    When Darren Hamilton began university, he was shocked to find that there were no Black music courses and Black music professors. He grew up singing spirituals every Sunday in church. Now at the University of Toronto, Hamilton teaches Gospel Choir, U of T's first credit course in Black gospel music. Students of all backgrounds and ages come to learn and sing songs rooted in faith, freedom and joy. He says he started the course because he wanted Black music to be valued in music education, and he wanted Black students to have a music class where they "feel they belong." *This episode originally aired Feb. 29, 2024.

    55分

  4. 5日前

    Jazz fan or not, you've probably heard this musician play

    If you think you've never heard Jerry Granelli play drums — you likely have. Think of a comic strip holiday special and an iconic soundtrack: A Charlie Brown Christmas. Jerry was 22 years old when he became a member of the Vince Guaraldi Trio, the jazz band behind the popular 1965 album. His long career was legendary, accompanying many of the greats like Mose Alison, Sly Stone and The Grateful Dead. Producer Mary Lynk was lucky to meet with Jerry on the eve of his 80th birthday for a wide-ranging conversation. The gifted composer and jazz giant died in Halifax in 2021. *This episode originally aired on December 21, 2020.

    54分

  5. 2025/12/24

    Revealing facts about the Christmas song meant for Easter

    Handel’s Messiah is one of the best-loved pieces of Christmas music. Only it was meant for Easter. But it draws on far more from the Old Testament than the New. There are more surprising facts about this 18th-century masterpiece that IDEAS explores with Ivars Taurins, founding director of the Tafelmusik Chamber Choir who has conducted Messiah over 200 times, and veteran CBC Radio broadcaster Robert Harris. In nine movements, they reveal the hidden treasures of Handel’s celebrated work. *This episode originally aired in 2015.

    54分

  6. 2025/12/23

    An apocalyptic retelling of the Christmas story

    The nativity story that Christians believe is that God took the form of a baby named Jesus who was born to save the world and bring about an enduring peace. So what happened? Did we miss it? And what happens next? These are questions Trappist monk Thomas Merton grappled with in his own meditation on the Christmas story. His version "The Time of The End is the Time of No Room" was published in 1966. At the time he called it a sober statement about the climate of our time, a time of finality and fulfillment.

    54分

  7. 2025/12/22

    Where to find 'critical hope' in hard times

    In an era of political polarization and fatigue from ongoing crises, hope is critical. But it's not something you have; it's something you do, argues education scholar Kari Grain. "Critical hope" in action is not just the belief that transformation is possible — it's necessary. In her book, she explores seven principles for practicing hope that confront toxic positivity, social injustices, and gives anger and grief a seat at the table. Kari Grain is a professor at the University of British Columbia in the Faculty of Education, where she leads the Masters program in Adult Learning and Global Change Program. She delivered the University of Prince Edward Island’s 2025 Shannon K Murray Lecture on Hope and the Academy.

    54分

  8. 2025/12/19

    Why spirituality is central to Indigenous mathematics

    Indigenous math isn't just about numbers and equations, it involves culture, spirituality and more. Math professor Edward Doolittle, a Mohawk from Six Nations in Ontario, sees math as something embedded in Creation itself. In his Hagey Lecture at the University of Waterloo, he describes Indigenous mathematics as being grounded in cognition, emotion, the physical world and community. Indigenizing math, Doolittle hopes, will make it more approachable and meaningful to Indigenous students — show them how entwined it is with everyday life and something much bigger than ourselves.

    54分
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番組について

IDEAS is a place for people who like to think. If you value deep conversation and unexpected reveals, this show is for you. From the roots and rise of authoritarianism to near-death experiences to the history of toilets, no topic is off-limits. Hosted by Nahlah Ayed, we’re home to immersive documentaries and fascinating interviews with some of the most consequential thinkers of our time. With an award-winning team, our podcast has proud roots in its 60-year history with CBC Radio, exploring the IDEAS that make us who we are.  New episodes drop Monday through Friday at 5pm ET.

情報

  • チャンネル
    CBC Discover & Learn
  • クリエイター
    CBC
  • 配信期間
    06年 - 25年
  • エピソード
    242
  • 制限指定
    不適切な内容を含む
  • Copyright
    Copyright © CBC 2026
  • 番組のWebサイト
    Ideas

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