How record collectors find lost music and preserve our cultural heritage | Alexis Charpentier

Medical tech designed to meet Africa's needs | Soyapi Mumba

How adaptive clothing empowers people with disabilities | Mindy Scheier

The power of citizen video to create undeniable truths | Yvette Alberdingk Thijm

What happens during a stroke? - Vaibhav Goswami

Inside Africa's thriving art scene | Touria El Glaoui

Why is NASA sending a spacecraft to a metal world? - Linda T. Elkins-Tanton

What we don't teach kids about sex | Sue Jaye Johnson

3 thoughtful ways to conserve water | Lana Mazahreh

Photos of Africa, taken from a flying lawn chair | George Steinmetz

You aren't at the mercy of your emotions -- your brain creates them | Lisa Feldman Barrett

Christopher Ategeka: How adoption worked for me | TED

The next generation of African architects and designers | Christian Benimana

See how the rest of the world lives, organized by income | Anna Rosling Rönnlund

The myth of Oisín and the land of eternal youth - Iseult Gillespie

What are mini brains? - Madeline Lancaster

The tragic myth of Orpheus and Eurydice - Brendan Pelsue

How urban agriculture is transforming Detroit | Devita Davison

What makes something go viral? | Dao Nguyen

How does your immune system work? - Emma Bryce

The brain benefits of deep sleep -- and how to get more of it | Dan Gartenberg

Who's at risk for colon cancer? - Amit H. Sachdev and Frank G. Gress

How fake handbags fund terrorism and organized crime | Alastair Gray

How to manage your time more effectively (according to machines) - Brian Christian

Get comfortable with being uncomfortable | Luvvie Ajayi Jones | TED

How to find the online English tutor for YOU

Why should you read Charles Dickens? - Iseult Gillespie

The future of good food in China | Matilda Ho

Why do animals form swarms? - Maria R. D'Orsogna

How we're using drones to deliver blood and save lives | Keller Rinaudo

An interview with the Queen of Creole Cuisine | Leah Chase and Pat Mitchell

Activism needs introverts | Sarah Corbett

The hidden opportunities of the informal economy | Niti Bhan

How to transform apocalypse fatigue into action on global warming | Per Espen Stoknes

Why do I make art? To build time capsules for my heritage | Kayla Briët

I don't want children -- stop telling me I'll change my mind | Christen Reighter

How my dad's dementia changed my idea of death (and life) | Beth Malone

Can 100% renewable energy power the world? - Federico Rosei and Renzo Rosei

How to talk (and listen) to transgender people | Jackson Bird

How long will human impacts last? - David Biello

We should aim for perfection -- and stop fearing failure | Jon Bowers

History vs. Che Guevara - Alex Gendler

The global learning crisis -- and what to do about it | Amel Karboul

The surprisingly charming science of your gut | Giulia Enders

What is the tragedy of the commons? - Nicholas Amendolare

We're building a dystopia just to make people click on ads | Zeynep Tufekci

The awful logic of land mines -- and an app that helps people avoid them | Carlos Bautista

How we'll earn money in a future without jobs | Martin Ford