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21:01

Larry Brilliant

The case for optimism

Posted Nov 2007
18:10

Juan Enriquez

Using biology to rethink the energy challenge

Posted Nov 2007
15:58

David Keith

A critical look at geoengineering against climate change

Posted Nov 2007
4:59

Paul Rothemund

Playing with DNA that self-assembles

Posted Nov 2007
18:56

Lawrence Lessig

Laws that choke creativity

Posted Nov 2007
20:54

Matthieu Ricard

The habits of happiness

Posted Nov 2007
22:18

Sherwin Nuland

How electroshock therapy changed me

Posted Oct 2007
20:34

Eleni Gabre-Madhin

A commodities exchange for Ethiopia

Posted Oct 2007
23:34

VS Ramachandran

3 clues to understanding your brain

Posted Oct 2007
16:03

Jan Chipchase

The anthropology of mobile phones

Posted Oct 2007
17:30

Maira Kalman

The illustrated woman

Posted Oct 2007
6:18

Hod Lipson

Building "self-aware" robots

Posted Oct 2007
29:51

Richard Branson

Life at 30,000 feet

Posted Oct 2007
3:32

Kenichi Ebina

My magic moves

Posted Oct 2007
17:09

Carolyn Porco

This is Saturn

Posted Oct 2007
21:20

Paul MacCready

A flight on solar wings

Posted Sep 2007
29:42

Stephen Petranek

10 ways the world could end

Posted Sep 2007
15:59

John Maeda

Designing for simplicity

Posted Sep 2007
15:51

Zeresenay Alemseged

The search for humanity's roots

Posted Sep 2007
17:36

Deborah Scranton

An Iraq war movie crowd-sourced from soldiers

Posted Sep 2007
19:15

Steven Pinker

The surprising decline in violence

Posted Sep 2007
17:27

Steven Pinker

What our language habits reveal

Posted Sep 2007
8:13

Theo Jansen

My creations, a new form of life

Posted Sep 2007
17:07

Andrew Mwenda

Aid for Africa? No thanks.

Posted Sep 2007
15:50

Erin McKean

The joy of lexicography

Posted Aug 2007
5:10

Dean Kamen

Luke, a new prosthetic arm for soldiers

Posted Aug 2007
15:31

Jeff Skoll

My journey into movies that matter

Posted Aug 2007
4:59

Vusi Mahlasela

"Woza"

Posted Aug 2007
10:06

Vusi Mahlasela

"Thula Mama"

Posted Aug 2007
18:23

Jacqueline Novogratz

Patient capitalism

Posted Aug 2007
17:36

Chris Abani

Telling stories from Africa

Posted Aug 2007
17:31

Patrick Awuah

How to educate leaders? Liberal arts

Posted Aug 2007
19:01

Euvin Naidoo

Why invest in Africa

Posted Jul 2007
4:12

William Kamkwamba

How I built a windmill

Posted Jul 2007
22:10

Ngozi Okonjo-Iweala

Aid versus trade

Posted Jul 2007
17:50

George Ayittey

Africa's cheetahs versus hippos

Posted Jul 2007