Discovering the Jet Stream

The Jet Stream is formed by powerful high-altitude rivers of air which circle the globe and help determine our climate. The existence of these winds was first documented in Japan in the 1920s, but only became more widely known during World War Two, when American airmen encounter high-speed winds on bombing missions over Japan. At the same time, the Japanese military also began to use these powerful transcontinental winds to carry innovative balloon bombs all the way to the West Coast of America. Using archive recordings we tell the story of the discovery and speak to Professor Tim Woollings from Oxford University, the author of Jet Stream: A Journey Through Our Changing Climate. Photo: B-29 bombers passing Mount Fuji on their way to Tokyo, April 1945 (Getty Images)

Om Podcasten

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest, the disastrous D-Day rehearsal, and the death of one of the world’s oldest languages.