The yellow traffic light is a perfect example of imperfection — with intention. While driving you have to think fast. Do you speed up or stop, whether that means easily or slamming on the brakes? Every driver has their answer and what lies in the middle is a vast perceptual field. A great deal of thought has gone into the engineering of the ambiguous yellow light, as IDEAS producer Seán Foley found out. He had his own encounter with what he was sure was the shortest yellow light in the world. It resulted in a traffic fine, and gave voice to so many questions.Guests featured in this podcast episode:Travis Stocking is a senior traffic analyst for Durham Region, OntarioAlfred Mele is a philosophy professor at Florida State UniversityRon Usher is a retired lawyer and IDEAS listener in Parksville, B.C.
Kultur & GesellschaftPolitik
Ideas Folgen
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.
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Folge vom 20.05.2026Why yellow traffic lights were designed to be ambiguous
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Folge vom 19.05.2026What North Korea’s personality cult has to do with JesusNorth Korea is no place for evangelical Christians today. But when journalist Jonathan Cheng peeled back decades he found out Christianity is at the heart of the Kim family’s rise to power and continuing dynasty. Cheng has spent 15 years and two trips to North Korea to piece this all together. His book is called Korean Messiah.Jonathan Cheng is the China bureau chief for The Wall Street Journal, and was previously the Korea bureau chief, running coverage of the Korean peninsula, including politics and society in both North and South Korea.
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Folge vom 18.05.2026Why laughter is so contagiousIf you want to hear what a laughing rat sounds like this podcast is for you. From why the sound of laughter triggers us to join in, to how a laughing yoga class starts, to the difference between AHA and HAHA in science, IDEAS contributor Peter Brown takes us on a joyride to reveal the mystery of laugher. Will this podcast make you laugh? Most likely. But it's better than catching a cold. *This episode originally aired on Nov. 4, 2020.
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Folge vom 15.05.2026He championed a radical dream — a 'United States of Africa'Africa is a centre of world history — a fact that's been deliberately obscured, says journalist Howard W. French. In this talk based on his book, The Second Emancipation, he explores the surprisingly early seeds of 20th century Pan-African thought, and how Kwame Nkrumah of Ghana went from reluctant student to influential leader of a free Ghana.Howard W. French delivered the Black History Month lecture at University of Toronto's New College. French was is a former New York Times bureau chief based in Shanghai. He now teaches journalism at Columbia University and is also the author of Born in Blackness.