CBC Discover & Learn

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頻道・共 21 個節目

社會與文化

社會與文化

每日更新
地球科學

地球科學

每週更新
歷史

歷史

1月16日更新
商業

商業

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社會與文化

社會與文化

每週更新兩次
歷史

歷史

2020/10/22更新
新聞

新聞

每週更新

2 天前

#2: What we can learn from our conversations with strangers

In his second Massey Lecture, Ian Williams explores the power of conversation with strangers. He says humanity comes out when interacting with them. But how do we open ourselves up to connect with strangers while safeguarding our personal sovereignty? *The Massey Lectures originally aired in November of 2024.

2 天前

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54 分鐘
8月14日

How inequality is undermining liberal democracy

With the end of the Cold War, the struggle for peace, equality, and democracy wasn’t settled — it became more complex. As we mark the 60th anniversary of Massey College, IDEAS executive producer Greg Kelly interviews Jennifer Welsh about her 2016 CBC Massey Lectures, The Return of History — and how nine years on, the struggle continues. *This episode originally aired on May 9, 2024.

8月14日

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54 分鐘
6 天前

What a cultural genocide took from Indigenous people in Canada

2018 Massey Lecturer Tanya Talaga reflects on the legacy of cultural genocide, and on how the stories of Indigenous peoples offer lessons for Canada today. *This episode first aired on March 6, 2024, as part of a series of conversations with — and about — former Massey Lecturers to mark the 60th anniversary of Massey College, a partner in the CBC Massey Lectures.

6 天前

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54 分鐘
8月12日

How to think for ourselves — is it even possible?

British novelist and Nobel Prize winner Doris Lessing warned us against groupthink when she delivered her CBC Massey Lectures in 1985. She argues the danger is not about belonging to a group or groups, but in not understanding the social laws that govern groups and govern us. Professor Miglena Todorova reflects on Lessing’s message and puts it into the context of today’s politics. *This episode originally aired on Nov. 7, 2024.

8月12日

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54 分鐘
4 天前

Trump-Putin meeting, The case for shade, Air Canada contract dispute, Canadian parks, Vietnam War legacy

Guest host Saroja Coelho speaks with New York Times White House correspondent Katie Rogers and McGill University political science associate professor Maria Popova about Donald Trump and Vladimir Putin's meeting in Alaska, The Globe and Mail's architecture critic Alex Bozikovic and environmental journalist Sam Bloch make the case for city shade, aviation expert John Gradek discusses the the Air Canada flight attendant contract dispute, Canadian history professor Alan MacEachern reflects on the evolution of Canada's parks, and Canadian author Vinh Nguyen retraces his family’s journey 50 years after the end of the Vietnam War. Discover more at https://www.cbc.ca/sunday

4 天前

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1 小時 39 分鐘
1 天前

#3: How a dispute can lead to unity

Difficult conversations are almost always about something under the surface, and hidden. In his third Massey Lecture, Ian Williams illustrates what we’re listening for isn’t always obvious. He explains how personal conversations aren't about finding answers — it's for communion. *The Massey Lectures originally aired in November of 2024.

1 天前

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54 分鐘
8月13日

Why the power of technology relies on an adaptive mindset

Technology is much more than a tool. Physicist Ursula Franklin argued that it’s a system — one so powerful that it can shape our mindset, our society and our politics. Her observations were prescient when she delivered her Massey Lecture in 1989 and they are all the more relevant today. Ursula Franklin’s friend and collaborator Jane Freeman reflects on the power of Franklin’s message. *This episode originally aired on Oct. 3, 2024.

8月13日

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54 分鐘
5 天前

Artists are leaving Spotify over ethical concerns, but where do they go next?

PLUS: Why 18-year-old soccer phenomenon Lamine Yamal is worth the hype; taking stock of a banner year for summer movies; a documentary chronicles a year in Gaza through the eyes of a young photojournalist; and Riffed from the Headlines, our weekly musical news quiz.

5 天前

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54 分鐘
6月6日

Eradicating plagues forever, and more...

Energy with a grain of salt Researchers have developed a new sodium metal powered fuel cell with up to triple the output for its weight of a lithium-ion battery. The team from MIT, including Yet-Ming Chiang, think these fuel cells could have enormous potential for electric vehicles — including flight. They say sodium can be electrically produced from salt on a large scale to facilitate this technology. The research was published in the journal Joule. Plants hear their pollinators, and produce sweet nectar in response A new study has found that plants can respond to the distinctive vibrations of pollinating insects by activating sugar-producing genes to produce rich nectar. In contrast they respond to the sound of nectar-stealing non-pollinators by cutting back on sugar. Francesca Barbero, from the University of Turin in Italy, presented this work at a recent joint meeting of the Acoustical Society of America and 25th International Congress on Acoustics. Penguin poop helps create the cooling clouds over Antarctica Penguin guano is rich in ammonia, and when it accumulates in penguin rookeries in Antarctica, that ammonia is released into the atmosphere, encouraging cloud production. Those clouds reflect sunlight into space, but can also trap sunlight reflected from the ice, so have complex climate interactions. This connection was discovered by University of Helsinki researcher Matthew Boyer, and was published in the journal Nature. Giant sloth family tree suggests trees are just a recent part of it Sloths used to be giants the size of bears and even elephants before disappearing around 12,000 years ago. An international group of paleontologists including University of Toronto’s Gerry De Iuliis have assembled a comprehensive family tree of the sloth to understand how a group that used to dominate the landscape was winnowed away to only a handful of relatively small, tree dwelling species. The research was published in the journal Science. Eradicating diseases — Can we wipe out ancient and modern plagues forever? In 1980 the World Health Organization declared Smallpox officially eradicated, meaning that for the first time, a plague that killed hundreds of millions of people had been eliminated by human ingenuity. It opened the question of whether we could do this for other lethal threats? We look at efforts to eradicate Polio, an ancient plague, and HIV, a more modern epidemic, to understand how researchers are trying to eradicate these diseases , how close they’ve come, and what’s preventing their final victory. Quirks spoke to Stan Houston, an infectious disease specialist and professor of medicine and public health at the University of Alberta in Edmonton. He’s worked on treating HIV and tuberculosis in places such as Zimbabwe, South Sudan, Ecuador and Alberta. Catherine Hankins was the chief scientific adviser for the Joint United Nations Program on HIV/AIDS in Geneva, Switzerland. And in 2013, she was named to the Order of Canada and in 2023 was inducted in the Canadian Medical Hall of Fame. She is currently an adjunct professor at the School of Population and Global Health at McGill University and a senior fellow at the Amsterdam Institute for Global Health and Development.

6月6日

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54 分鐘
6月13日

Our Listener Question show

Have you ever wondered how particle accelerators work? Or what microwaves really do to food? Have you spent time pondering the mystery of how ice ages changed the Earth’s rotation or why whales haven’t figured out how to breathe underwater? Well you’ll find out all this and more on our Quirks & Quarks listener question show!

6月13日

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54 分鐘

Expand your knowledge and satisfy your curiosity with podcasts exploring the topics affecting us all — from science, climate, and tech news to history and human nature. Award-winning series that enlighten, entertain and inform.