Silk | Can't Sleep? Learn About Ancient Fabric and the Silk Road

Cotton has been grown, spun, and woven for thousands of years. This episode explores how cotton plants are cultivated, how their fibers are turned into textiles, and the long history of cotton product...

2 Syys 33min

When winter arrives and food becomes scarce, some animals have a remarkable way of waiting it out. This episode explores how hibernation works, what happens to an animal’s body during long periods of ...

31 Elo 34min

The cosmos contains everything we know, from planets and stars to galaxies stretching across unimaginable distances. This episode explores the structure of the universe, how our understanding of it ha...

28 Elo 32min

Doughnuts have taken many forms across cultures and centuries. This episode explores the history of doughnuts, how they’re made, and the many varieties that have developed around the world. Along the ...

26 Elo 32min

Easter Island is one of the most isolated inhabited islands in the world, famous for the enormous stone statues known as moai. This episode explores the island’s Polynesian settlement, the creation an...

24 Elo 33min

Snow leopards are elusive cats that live among the rugged mountains of Central and South Asia. This episode explores their physical characteristics, mountainous habitat, behavior, and the remarkable a...

21 Elo 28min

Samhain is an ancient Celtic festival marking the end of the harvest season and the beginning of winter. This episode explores the origins of Samhain, how it was traditionally celebrated, and the cust...

19 Elo 29min

For centuries, alchemists searched for ways to transform ordinary materials into something extraordinary. This episode explores the history of alchemy, its roots in ancient cultures, and the ideas and...

17 Elo 32min