Why city flags may be the worst-designed thing you've never noticed | Roman Mars

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)

How in vitro fertilization (IVF) works - Nassim Assefi and Brian A. Levine

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

Abe Davis: New video technology that reveals an object's hidden properties

Why do your knuckles pop? - Eleanor Nelsen

Pamela Ronald: The case for engineering our food

What causes economic bubbles? - Prateek Singh

What is leukemia? - Danilo Allegra and Dania Puggioni

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

Why neutrinos matter - Sílvia Bravo Gallart

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

Could your brain repair itself? - Ralitsa Petrova

Nizar Ibrahim: How we unearthed the spinosaurus

How to raise a Black son in America | Clint Smith

How to unboil an egg - Eleanor Nelsen

Chris Milk: How virtual reality can create the ultimate empathy machine

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

Gary Haugen: The hidden reason for poverty the world needs to address now

Why is biodiversity so important? - Kim Preshoff

Nathalie Cabrol: How Mars might hold the secret to the origin of life

Paul Tudor Jones II: Why we need to rethink capitalism

How to spot a counterfeit bill - Tien Nguyen

The best kindergarten you’ve ever seen | Takaharu Tezuka

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

Why are manhole covers round? - Marc Chamberland

Barat Ali Batoor: My desperate journey with a human smuggler

Fred Jansen: How to land on a comet

The science of static electricity - Anuradha Bhagwat

How equal do we want the world to be? You'd be surprised | Dan Ariely

How brass instruments work - Al Cannon

5 ways to kill your dreams | Bel Pesce

Camera or eye: Which sees better? - Michael Mauser

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

Boniface Mwangi: The day I stood up alone

The effects of underwater pressure on the body - Neosha S Kashef

Are China and the US doomed to conflict? | Kevin Rudd

What causes bad breath? - Mel Rosenberg

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

How do geckos defy gravity? - Eleanor Nelsen

Dame Stephanie Shirley: Why do ambitious women have flat heads?

Earworms: Those songs that get stuck in your head - Elizabeth Hellmuth Margulis

Dave Isay: Everyone around you has a story the world needs to hear