Browse Lessons

How do lungs work? - Emma Bryce

How does cancer spread through the body? - Ivan Seah Yu Jun

The mighty mathematics of the lever - Andy Peterson and Zack Patterson

The great brain debate - Ted Altschuler

Why elephants never forget - Alex Gendler

How do scars form? - Sarthak Sinha

How a wound heals itself - Sarthak Sinha

Ideasthesia: How do ideas feel? - Danko Nikolić

How to understand power - Eric Liu

The language of lying — Noah Zandan

The unexpected math behind Van Gogh's "Starry Night" - Natalya St. Clair

Could comets be the source of life on Earth? - Justin Dowd

Is math discovered or invented? - Jeff Dekofsky

Is our climate headed for a mathematical tipping point? - Victor J. Donnay

How do germs spread (and why do they make us sick)? - Yannay Khaikin and Nicole Mideo

A different way to visualize rhythm - John Varney

Einstein's brilliant mistake: Entangled states - Chad Orzel

Schrödinger's cat: A thought experiment in quantum mechanics - Chad Orzel

History vs. Christopher Columbus - Alex Gendler

Light seconds, light years, light centuries: How to measure extreme distances - Yuan-Sen Ting

How do we study the stars? - Yuan-Sen Ting

How do vitamins work? - Ginnie Trinh Nguyen

A brief history of melancholy - Courtney Stephens

Is telekinesis real? - Emma Bryce

If matter falls down, does antimatter fall up? - Chloé Malbrunot

Cloudy climate change: How clouds affect Earth's temperature - Jasper Kirkby

How cosmic rays help us understand the universe - Veronica Bindi

Where do genes come from? - Carl Zimmer

The history of tattoos - Addison Anderson

What is the Heisenberg Uncertainty Principle? - Chad Orzel

Particles and waves: The central mystery of quantum mechanics - Chad Orzel

The chemistry of cold packs - John Pollard

Making a TED-Ed Lesson: Bringing a pop-up book to life

Why do we pass gas? - Purna Kashyap

Corruption, wealth, and beauty: The history of the Venetian gondola - Laura Morelli

Why we love repetition in music - Elizabeth Hellmuth Margulis

What did dogs teach humans about diabetes? - Duncan C. Ferguson

What happens when you remove the hippocampus? - Sam Kean

Feedback loops: How nature gets its rhythms - Anje-Margriet Neutel

What can Schrödinger's cat teach us about quantum mechanics? - Josh Samani

How do tornadoes form? - James Spann

The past, present, and future of the bubonic plague - Sharon N. DeWitte

How do you know you exist? - James Zucker

How optical illusions trick your brain - Nathan S. Jacobs

The secret lives of baby fish - Amy McDermott

What causes antibiotic resistance? - Kevin Wu

What's hidden among the tallest trees on Earth? - Wendell Oshiro

The nurdles' quest for ocean domination - Kim Preshoff