TED-Ed

Secrets of the X chromosome – Robin Ball

Can you solve the time traveling car riddle? – Dan Finkel

Learning from smallpox: How to eradicate a disease – Julie Garon and Walter A. Orenstein

How do cancer cells behave differently from healthy ones? – George Zaidan

How do you know you exist? – James Zucker

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

How optical illusions trick your brain – Nathan S. Jacobs

Can you outsmart Fate and break her ancient curse? – Dan Finkel

Bird migration, a perilous journey – Alyssa Klavans

What is consciousness? – Michael S. A. Graziano

Solving the puzzle of the periodic table – Eric Rosado

Can you solve the birthday cake riddle? – Marie Brodsky

How do you know you’re not dreaming? – Daniel Gregory

Einstein’s miracle year – Larry Lagerstrom

Are Elvish, Klingon, Dothraki and Na’vi real languages? – John McWhorter

I listen to color – Neil Harbisson

The myth of Zeus’ test – Iseult Gillespie

What’s the smartest age? – Shannon Odell

What do dumplings look like around the world?- Miranda Brown

The surprisingly long history of electric cars – Daniel Sperling and Gil Tal

The dark history of Mount Rushmore – Ned Blackhawk and Jeffrey D. Means

What you might not know about the Declaration of Independence – Kenneth C. Davis

Why should you read “Fahrenheit 451”? – Iseult Gillespie

Will there ever be a mile-high skyscraper? – Stefan Al

How did Dracula become the world’s most famous vampire? – Stanley Stepanic

The simple story of photosynthesis and food – Amanda Ooten

The strangest summer in recorded history – David Biello

Why do we sweat? – John Murnan

How do vaccines work? – Kelwalin Dhanasarnsombut

Why do you want to squeeze cute things? – Joshua Paul Dale

Why doesn’t the Leaning Tower of Pisa fall over? – Alex Gendler

The most common STI in the world – Emma Bryce

Can you solve the dragon jousting riddle? – Alex Gendler

How mucus keeps us healthy – Katharina Ribbeck

The language of lying — Noah Zandan

What triggers a chemical reaction? – Kareem Jarrah

The history of tea – Shunan Teng

The truth about electroconvulsive therapy (ECT) – Helen M. Farrell

Meet the bluefin tuna, the toughest fish in the sea – Grantly Galland and Raiana McKinney

Should we get rid of standardized testing? – Arlo Kempf