Murray Gell-Mann Beauty, truth and ... physics?
Armed with a sense of humor and laypeople's terms, Nobel winner Murray Gell-Mann drops some knowledge on TEDsters about particle physics, asking questions like, Are elegant equations more likely to be right than inelegant ones?
Al Gore What comes after An Inconvenient Truth?
At TED2009, Al Gore presents updated slides from around the globe to make the case that worrying climate trends are even worse than scientists predicted, and to make clear his stance on "clean coal."
Marco Tempest The magic of truth and lies (and iPods)
Using three iPods like magical props, Marco Tempest spins a clever, surprisingly heartfelt meditation on truth and lies, art and emotion.
Jonathan Foley The other inconvenient truth
A skyrocketing demand for food means that agriculture has become the largest driver of climate change, biodiversity loss and environmental destruction. Jonathan Foley shows why we desperately need to begin "terraculture" — farming for the whole planet.
Dianna Cohen Tough truths about plastic pollution
Artist Dianna Cohen shares some tough truths about plastic pollution in the ocean and in our lives — and some thoughts on how to free ourselves from the plastic gyre.
Shabana Basij-Rasikh Dare to educate Afghan girls
Imagine a country where girls must sneak out to go to school, with deadly consequences if they get caught learning. This was Afghanistan under the Taliban, and traces of that danger remain today. 22-year-old Shabana Basij-Rasikh runs a school for girls in Afghanistan. She celebrates the power of a family's decision to believe in their daughters — and tells the story of one brave father who stood up to local threats.
Margaret Heffernan Dare to disagree
Most people instinctively avoid conflict, but as Margaret Heffernan shows us, good disagreement is central to progress. She illustrates (sometimes counterintuitively) how the best partners aren’t echo chambers — and how great research teams, relationships and businesses allow people to deeply disagree.
Laura Boushnak For these women, reading is a daring act
In some parts of the world, half of the women lack basic reading and writing skills. The reasons vary, but in many cases, literacy isn't valued by fathers, husbands, even mothers. Photographer and TED Fellow Laura Boushnak traveled to countries including Yemen, Egypt and Tunisia to highlight brave women — schoolgirls, political activists, 60-year-old moms — who are fighting the statistics.
Manal al-Sharif A Saudi woman who dared to drive
There's no actual law against women driving in Saudi Arabia. But it's forbidden. Two years ago, Manal al-Sharif decided to encourage women to drive by doing so — and filming herself for YouTube. Hear her story of what happened next.