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Showing 24 of 569 episodes
Aug 14, 2026·33 minHistory of Tea | Can’t Sleep? Steep Yourself in History
Tea has been part of human culture for thousands of years, growing from ancient traditions into one of the world’s most widely consumed drinks. This episode explores the origins of tea, its spread across Asia and Europe, and the traditions that developed around drinking it. Along
- Aug 12, 2026·34 min
Apartments | Can’t Sleep? Learn About Life Under One Roof
Apartments have housed people in cities for thousands of years. This episode explores the history of apartment living, how apartment buildings developed, and the different forms they have taken around the world. Along the way, you’ll hear about ancient Roman apartments, the rise
- Aug 10, 2026·31 min
Brooks & Dunn | Can’t Sleep? Learn About Country Music’s Hit Duo
For more than three decades, Brooks & Dunn helped define the sound of modern country music. This episode explores how Kix Brooks and Ronnie Dunn came together, the rise of their career, their biggest hits, and the lasting impact they had on country music. Along the way, you’l
- Aug 7, 2026·32 min
Salt | Can’t Sleep? Learn About the Mineral That Built Empires
Salt has shaped human history for thousands of years, serving as a seasoning, a preservative, and one of the world’s most valuable commodities. This episode explores what salt is, where it comes from, how it has been harvested throughout history, and the many ways it has influenc
- Aug 5, 2026·34 min
Dolphins | Can’t Sleep? Learn About Flipper
Dolphins have fascinated people for thousands of years with their intelligence, social behavior, and remarkable lives beneath the waves. This episode explores what dolphins are, where they live, how they communicate, and the adaptations that make them some of the ocean’s most suc
- Aug 3, 2026·32 min
Constellations | Can’t Sleep? Learn About the Night Sky
For thousands of years, people have looked to the night sky and imagined familiar shapes among the stars. This episode explores the stories connected to constellations, how they help map the heavens, and how they are used in modern astronomy. Along the way, you’ll hear about zodi
- Jul 31, 2026·33 min
String Instruments | Can’t Sleep? Learn What Makes Them Sing
String instruments have been part of human culture for thousands of years, producing music through vibrating strings in countless shapes and sizes. This episode explores how string instruments create sound, the families they belong to, their development across different cultures,
- Jul 29, 2026·32 min
Cookies | Can’t Sleep? Learn About Fresh Baked Favorites
Cookies have been enjoyed in countless forms for centuries, evolving from small baked treats into one of the world’s most beloved desserts. This episode explores where cookies came from, how they spread across cultures, and the ingredients and techniques behind their many varieti
- Jul 27, 2026·31 min
Middle-Earth | Can’t Sleep? Learn About Tolkien’s Legendary World
Middle-earth is the legendary setting of J.R.R. Tolkien’s most beloved stories, filled with ancient kingdoms, distant lands, and a history spanning thousands of years. This episode explores the geography of Middle-earth, its peoples, the different ages of its history, and the end
- Jul 24, 2026·36 min
Philosophy | Can’t Sleep? Learn About the Love of Wisdom
Philosophy has shaped the way people think about knowledge, reality, ethics, and existence for thousands of years. This episode explores the origins of philosophy, the major branches of philosophical thought, and some of the enduring questions that have challenged thinkers across
- Jul 22, 2026·27 min
Labyrinth | Can’t Sleep? Learn About the Mythical Maze
Labyrinths have fascinated people for thousands of years, appearing in mythology, religion, art, and architecture across many cultures. This episode explores what labyrinths are, how they differ from mazes, their connection to the legend of the Minotaur, and the many ways they ha
- Jul 20, 2026·32 min
French Fries | Can’t Sleep? Learn About Potato Perfection
French fries are one of the world’s most recognizable foods, enjoyed everywhere from neighborhood diners to restaurants and street vendors around the globe. This episode explores the debated origins of French fries, how potatoes became the ideal ingredient for frying, the many st
- Jul 17, 2026·33 min
The International Space Station | Can’t Sleep? Learn About Life in Orbit
The International Space Station has been continuously inhabited since the year 2000, serving as a laboratory, home, and engineering marvel orbiting hundreds of miles above Earth. This episode explores the station’s purpose, the international partnership behind it, how astronauts
- Jul 15, 2026·30 min
King Tut | Can’t Sleep? Learn About the Famous Pharaoh
Tutankhamun ruled ancient Egypt for only a short time, yet he became one of the most famous pharaohs in history. This episode explores the story of King Tut, from his place in Egypt’s royal dynasty to the remarkable discovery of his nearly intact tomb. Along the way, you’ll hear
- Jul 13, 2026·32 min
Violas | Can’t Sleep? Learn About the Orchestra’s Hidden Gem
Violas have long occupied the middle voice of the string family, bridging the bright sound of the violin and the rich depth of the cello. This episode explores how violas developed, what gives them their distinctive tone, how they differ from violins, and the important role they
- Jul 10, 2026·30 min
Airliners | Can’t Sleep? Learn About Commercial Aviation
Airliners have transformed the way people travel, making it possible to cross continents and oceans in a matter of hours. This episode explores the history of commercial aviation, how airliners evolved, the different types of passenger aircraft, and the engineering that makes mod
- Jul 8, 2026·32 min
Otters | Can’t Sleep? Learn About Nature’s Playful Mammals
Otters are found in rivers, lakes, coastlines, and oceans across much of the world. This episode explores how otters are adapted for life in the water, where they live, how they move through their environments, and the characteristics that distinguish them from other members of t
- Jul 6, 2026·31 min
Flags | Can’t Sleep? Learn About the Symbols of Nations
Flags have served as symbols of identity, communication, and history for thousands of years. This episode explores how flags developed from military standards into national symbols, why they use particular colors and designs, and the traditions and rules surrounding their display
- Jul 3, 2026·36 min
Oregon Trail | Can’t Sleep? Learn About America’s Great Migration
The Oregon Trail was more than a single path across the American West. This episode explores the network of routes that carried hundreds of thousands of emigrants toward Oregon, California, and beyond, and how those trails changed over time. Along the way, you’ll hear about famou
- Jul 1, 2026·30 min
Cereal | Can’t Sleep? Learn About the World’s Most Important Crops
Cereal crops have shaped human civilization for thousands of years. This episode explores the grasses that produce the world’s most important edible grains, how cereals are cultivated and harvested, and why crops like wheat, rice, maize, barley, and oats became the foundation of
- Jun 29, 2026·30 min
Concrete | Can’t Sleep? Learn About the Foundation of Modern Cities
Concrete has shaped the modern world in ways most people rarely notice. This episode explores the history of concrete, how it is made, why it became one of the most widely used building materials on Earth, and how engineers continue to use it to create everything from roads and b
- Jun 26, 2026·34 min
Crop Circles | Can’t Sleep? Learn About One of History’s Strangest Mysteries
Crop circles transformed ordinary farm fields into the setting for one of the modern world’s most persistent mysteries. This episode explores the history of crop circles, where reports originated, how increasingly complex designs appeared across the countryside, and why so many p
- Jun 24, 2026·35 min
Clocks | Can’t Sleep? Learn About the History of Time
Clocks have shaped the way humans understand and organize time for thousands of years. This episode explores the history of timekeeping, from ancient sundials and water clocks to early mechanical devices designed to track the passing hours. Along the way, you’ll hear about invent
- Jun 22, 2026·35 min
Supernova | Can’t Sleep? Learn About Stellar Explosions
Supernovae are among the most powerful events in the universe. This episode explores what happens when stars reach the end of their lives and why these immense explosions can briefly outshine entire galaxies. Along the way, you’ll hear about famous supernovae, distant galaxies, o