Paul Root Wolpe examines the ethical implications of new science -- genetic modification, neuroscience and other breakthroughs that stretch our current philosophy to the breaking point. He's the chief bioethicist at NASA, among other appointments.
TED Fellow Robert Hakiza is the co-founder of the Young African Refugees for Integral Development (YARID), which empowers refugees and builds community through vocational education, English classes, access to sports and computer literacy skills.
TED Senior Fellow Jae Rhim Lee develops new rituals and objects around death to point us toward a more sustainable future, including a mushroom burial suit that converts our unused bodies efficiently into clean compost.
Cards that fly all over the table, spill onto the floor, and disappear beneath a laser beam. Welcome to the chaotic and flabbergasting magical world of Lennart Green, grand master of close-up card trickery.
Safeena Husain has worked extensively with rural and urban underserved communities in South America, Africa and Asia. After returning to India, she chose the agenda closest to her heart -- girls' education -- and founded Educate Girls.