How cancer cells communicate -- and how we can slow them down | Hasini Jayatilaka
When cancer cells are closely packed together in a tumor, they're able to communicate with each other and coordinate their movement throughout the body. What if we could interrupt this process? In thi...
16 Aug 201810min
What a scrapyard in Ghana can teach us about innovation | DK Osseo-Asare
In Agbogbloshie, a community in Accra, Ghana, people descend on a scrapyard to mine electronic waste for recyclable materials. Without formal training, these urban miners often teach themselves the wo...
16 Aug 201814min
Why I fight for the education of refugee girls (like me) | Mary Maker
After fleeing war-torn South Sudan as a child, Mary Maker found security and hope in the school at Kenya's Kakuma Refugee Camp. Now as a teacher of young refugees herself, she sees education as an ess...
15 Aug 201816min
The little risks you can take to increase your luck | Tina Seelig
Luck is rarely a lightning strike, isolated and dramatic -- it's much more like the wind, blowing constantly. Catching more of it is easy but not obvious. In this insightful talk, Stanford business sc...
14 Aug 201811min
How teachers can help kids find their political voices | Sydney Chaffee
Social justice belongs in our schools, says educator Sydney Chaffee. In a bold talk, she shows how teaching students to engage in activism helps them build important academic and life skills -- and as...
14 Aug 201817min
Who belongs in a city? | OluTimehin Adegbeye
Underneath every shiny new megacity, there's often a story of communities displaced. In this moving, poetic talk, OluTimehin Adegbeye details how government land grabs are destroying the lives of thou...
10 Aug 201812min
A doctor's case for medical marijuana | David Casarett
Physician David Casarett was tired of hearing hype and half-truths around medical marijuana, so he put on his skeptic's hat and investigated on his own. He comes back with a fascinating report on what...
9 Aug 201815min
Want to be more creative? Go for a walk | Marily Oppezzo
When trying to come up with a new idea, we all have times when we get stuck. But according to research by behavioral and learning scientist Marily Oppezzo, getting up and going for a walk might be all...
8 Aug 20185min
