Ideas Folgen

Physics has been full of astonishing discoveries over the past century. But they open up even bigger mysteries that scientists are working feverishly to explain. What is dark energy? And why is the expansion of the universe accelerating? In public talks at the Perimeter Institute for Theoretical Physics in Waterloo, Ontario, two prominent physicists – Sarah Shandera of Penn State University and Stanford University’s Savas Dimopoulos – discuss the breakthroughs of recent decades and what it will take to solve the most nettlesome mysteries that have deepened in their wake.

The true story of America is that it was built on a caste system comparable to India’s, says Pulitzer-prize-winning American journalist Isabel Wilkerson. The author argues that it's key to recognize the roots of the U.S. caste "structure" as she calls it, to understand why conflicts relating to race and class persist. Wilkerson delivered the 2025 Beatty Lecture at McGill University in Montreal.

There’s a burgeoning genre of fiction coming from Mexico — stories that merge socio-political history and the impact of drug-related violence with fantastical stories of eerie ghosts, zombies, and monstrous cannibals. IDEAS explores dozens of gothic, horror and crime fiction novels. *This episode is part of our ongoing series, IDEAS from the Trenches, about outstanding PhD scholars across the country. It originally aired on June 5, 2023.We'd love to hear from you. Fill out our listener survey here.