What is a calorie? - Emma Bryce

History vs. Genghis Khan - Alex Gendler

Jimmy Carter: Why I believe the mistreatment of women is the number one human rights abuse

The incredible history of China's terracotta warriors - Megan Campisi and Pen-Pen Chen

Maryn McKenna: What do we do when antibiotics don’t work any more?

The benefits of a bilingual brain - Mia Nacamulli

How X-rays see through your skin - Ge Wang

An 11-year-old prodigy performs old-school jazz | Joey Alexander

Rana el Kaliouby: This app knows how you feel — from the look on your face

How plants tell time - Dasha Savage

How to detect a supernova - Samantha Kuula

This is what it's like to go undercover in North Korea | Suki Kim

The math behind Michael Jordan’s legendary hang time - Andy Peterson and Zack Patterson

The single biggest reason why start-ups succeed | Bill Gross | TED

Debunking the myths of OCD - Natascha M. Santos

The Lady Lifers: A moving song from women in prison for life

Magical houses, made of bamboo | Elora Hardy

Sunlight is way older than you think - Sten Odenwald

The first 21 days of a bee’s life | Anand Varma

The wars that inspired Game of Thrones - Alex Gendler

Dawn Landes: A song for my hero, the woman who rowed into a hurricane

Tal Danino: We can use bacteria to detect cancer (and maybe treat it)

Bill T. Jones: The dancer, the singer, the cellist ... and a moment of creative magic

What causes economic bubbles? - Prateek Singh

Why we laugh | Sophie Scott

How to control someone else's arm with your brain | Greg Gage

What happens when our computers get smarter than we are? | Nick Bostrom

Could your brain repair itself? - Ralitsa Petrova

How to raise a Black son in America | Clint Smith

Jedidah Isler: How I fell in love with quasars, blazars and our incredible universe

What really happens to the plastic you throw away - Emma Bryce

What's the difference between accuracy and precision? - Matt Anticole

Kailash Satyarthi: How to make peace? Get angry

5 ways to kill your dreams | Bel Pesce

The next outbreak? We’re not ready | Bill Gates | TED

Boniface Mwangi: The day I stood up alone

Alison Killing: There’s a better way to die, and architecture can help

The price of shame | Monica Lewinsky | TED

What if 3D printing was 100x faster? | Joseph DeSimone

Plato’s Allegory of the Cave - Alex Gendler

Why it’s so hard to cure HIV/AIDS - Janet Iwasa

The real story behind Archimedes’ Eureka! - Armand D'Angour

Sangu Delle: In praise of macro -- yes, macro -- finance in Africa

Why sitting is bad for you - Murat Dalkilinç

The law of conservation of mass - Todd Ramsey

Did Shakespeare write his plays? - Natalya St. Clair and Aaron Williams

Laura Boushnak: For these women, reading is a daring act

How we think complex cells evolved - Adam Jacobson