Browse Lessons

The Sun’s surprising movement across the sky - Gordon Williamson

What is depression? - Helen M. Farrell

History through the eyes of the potato - Leo Bear-McGuinness

Why do we dream? - Amy Adkins

The ethical dilemma of self-driving cars - Patrick Lin

How does anesthesia work? - Steven Zheng

Why the octopus brain is so extraordinary - Cláudio L. Guerra

How exposing anonymous companies could cut down on crime - Global Witness

Can you solve "Einstein’s Riddle"? - Dan Van der Vieren

How did clouds get their names? - Richard Hamblyn

Let's make history…by recording it - StoryCorps & TED Prize

What’s the difference between a scientific law and theory? - Matt Anticole

Would you opt for a life with no pain? - Hayley Levitt and Bethany Rickwald

How to write descriptively - Nalo Hopkinson

What would happen if you didn’t sleep? - Claudia Aguirre

The science behind the myth: Homer's "Odyssey" - Matt Kaplan

How stress affects your brain - Madhumita Murgia

How mucus keeps us healthy - Katharina Ribbeck

What makes muscles grow? - Jeffrey Siegel

Group theory 101: How to play a Rubik’s Cube like a piano - Michael Staff

How do hard drives work? - Kanawat Senanan

Who was Confucius? - Bryan W. Van Norden

How computers translate human language - Ioannis Papachimonas

How stress affects your body - Sharon Horesh Bergquist

How a few scientists transformed the way we think about disease - Tien Nguyen

Why do women have periods?

What are the universal human rights? - Benedetta Berti

Where did Russia come from? - Alex Gendler

The race to sequence the human genome - Tien Nguyen

Where does gold come from? - David Lunney

3 tips to boost your confidence - TED-Ed

Can you solve the prisoner hat riddle? - Alex Gendler

What "Orwellian" really means - Noah Tavlin

The incredible collaboration behind the International Space Station - Tien Nguyen

A curable condition that causes blindness - Andrew Bastawrous

How memories form and how we lose them - Catharine Young

The treadmill's dark and twisted past - Conor Heffernan

What happens when your DNA is damaged? - Monica Menesini

What makes the Great Wall of China so extraordinary - Megan Campisi and Pen-Pen Chen

The mathematical secrets of Pascal’s triangle - Wajdi Mohamed Ratemi

When to use "me", "myself" and "I" - Emma Bryce

Do animals have language? - Michele Bishop

How misused modifiers can hurt your writing - Emma Bryce

The ancient origins of the Olympics - Armand D'Angour

Can you solve the bridge riddle? - Alex Gendler

How smart are dolphins? - Lori Marino

How false news can spread - Noah Tavlin

Why do some people go bald? - Sarthak Sinha