Amanda Burden: How public spaces make cities work

History vs. Vladimir Lenin - Alex Gendler

Lawrence Lessig: The unstoppable walk to political reform

What is Alzheimer's disease? - Ivan Seah Yu Jun

Why giving away our wealth has been the most satisfying thing we've done... | Bill and Melinda Gates

Allan Adams: The discovery that could rewrite physics

TED, the Musical

Nature's smallest factory: The Calvin cycle - Cathy Symington

Why I must come out | Geena Rocero

Sugar: Hiding in plain sight - Robert Lustig

New bionics let us run, climb and dance | Hugh Herr | TED

Del Harvey: The strangeness of scale at Twitter

How many ways can you arrange a deck of cards? - Yannay Khaikin

Ed Yong: Suicidal wasps, zombie roaches and other parasite tales

Pixar: The math behind the movies - Tony DeRose

My Daughter, Malala | Ziauddin Yousafzai | TED Talks

The fundamentals of space-time: Part 1 - Andrew Pontzen and Tom Whyntie

Charmian Gooch: My wish: To launch a new era of openness in business

Dead stuff: The secret ingredient in our food chain - John C. Moore

What I learned from going blind in space | Chris Hadfield | TED

How we take back the internet | Edward Snowden

The neuroscience of restorative justice | Dan Reisel

The case of the vanishing honeybees - Emma Bryce

Grammar's great divide: The Oxford comma - TED-Ed

Toby Shapshak: You don't need an app for that

From the top of the food chain down: Rewilding our world - George Monbiot

The science of spiciness - Rose Eveleth

Manu Prakash: A 50-cent microscope that folds like origami

Gabriel Barcia-Colombo: My DNA vending machine

Is there a difference between art and craft? - Laura Morelli

Christopher Soghoian: Government surveillance — this is just the beginning

Annette Heuser: The 3 agencies with the power to make or break economies

What we can learn from galaxies far, far away - Henry Lin

Why do we cry? The three types of tears - Alex Gendler

What is the universe made of? - Dennis Wildfogel

Siddharthan Chandran: Can the damaged brain repair itself?

Ash Beckham: We're all hiding something. Let's find the courage to open up

What it takes to be a great leader | Roselinde Torres | TED

An athlete uses physics to shatter world records - Asaf Bar-Yosef

Molly Stevens: A new way to grow bone

Rupal Patel: Synthetic voices, as unique as fingerprints

The history of marriage - Alex Gendler

Leyla Acaroglu: Paper beats plastic? How to rethink environmental folklore

David Puttnam: What happens when the media's priority is profit?

Eli the eel: A mysterious migration - James Prosek

Alex Wissner-Gross: A new equation for intelligence

Dan Berkenstock: The world is one big dataset. Now, how to photograph it ...

Why is glass transparent? - Mark Miodownik