Small Thing Big Idea is an original TED series that celebrates the lasting genius of everyday objects. Experts from various disciples explain how these humble designs have indelibly changed the world.

Michael Bierut: The genius of the London Tube Map

Paola Antonelli: The 3000-year history of the hoodie

Caroline Weaver: Why the pencil is perfect

Daniel Engber: How the progress bar keeps you sane

Kyra Gaunt: How the jump rope got its rhythm

Isaac Mizrahi: How the button changed fashion

David Rockwell: The hidden ways stairs shape your life

Margaret Gould Stewart: How the hyperlink changed everything

Paola Antonelli: Why pasta comes in all shapes and sizes

A.J. Jacobs: The evolution of the coffee cup lid

David Biello: How the compass unlocked the world

Debbie Millman: The function and fashion of eyeglasses

Jennifer 8. Lee: Why 1.5 billion people eat with chopsticks

Chip Kidd: Why books are here to stay

Jon Gray: The power of the Afro pick
