Ted Radio Hour

Why do we react harshly when we listen to recordings of ourselves? Voice expert Rebecca Kleinberger explains the mechanics of how we hear our own voice—and why that elicits mixed feelings.

Every species has its unique vocalizations. Indigenous Siberian musician Snow Raven recreates the intricate sounds of reindeer, owls, wolves and more in this mesmerizing performance.

Refugees or disaster victims often flee their homes, leaving behind all traces of their family history. Technologist Pau Aleikum Garcia uses AI to create dreamlike visuals of their memories.

Amy Kurzweil never met her grandfather Fred. But with the help of AI and an extensive archive of Fred's writings, she was able to "speak" with him in the form of a chatbot... decades after his death.

When relics and landmarks are damaged in war or natural disasters, they're lost forever. Or are they? Google's Chance Coughenour explains how the latest tech can preserve and share that history.

Activist Yifat Susskind's organization, MADRE, is rooted in the idea that in uncertain times, we should 'think like a mother.' To her, this means being determined to ease the suffering of others.

Cynicism is tempting in uncertain times. But Stanford psychologist Jamil Zaki says cynicism makes us more lonely, less trusting and less healthy. He suggests opting for "hopeful skepticism" instead.

Mustafa Suleyman has played a pivotal role in the evolution of AI, as co-founder of DeepMind and now as CEO of Microsoft AI. This hour, he reflects on his career and shares his vision for the future.

We waste about a third of all of our food worldwide. Food waste expert Dana Gunders shares her approach to help us save money and keep groceries out of landfills.

Every year, billions of pounds of food go to waste in the U.S. Social entrepreneur Jasmine Crowe-Houston created a platform to reroute excess food from landfills to people in need.