Each year, the TED Conference hosts some of the world's most fascinating people: Trusted voices and convention-breaking mavericks, icons and geniuses. These podcasts (available also in video) capture the most extraordinary presentations delivered from the TED stage. Each week, we'll release a new talk to inspire, intrigue and stir the imagination. For best effect, plan to listen to at least three, start to finish. (They have a cumulative effect.) If you have a curious soul and an open mind, we think you'll be hooked...

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Episodes:  1-5 of 20

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• TED: Danny Hillis: Back to the future (of 1994) - Danny Hillis (1994) Date: 02/03/12    Listen Now )) Duration: 19 minutes 24 seconds (1 segment)

  From deep in the TED archive, Danny Hillis outlines an intriguing theory of how and why technological change seems to be accelerating, by linking it to the very evolution of life itself. The presentation techniques he uses may look dated, but the ideas are as relevant as ever. share Talkbacks and Comments: Episode Comment

• TED: Erica Frenkel: The universal anesthesia machine - Erica Frenkel (2011) Date: 02/02/12    Listen Now )) Duration: 11 minutes 42 seconds (1 segment)

  What if you're in surgery and the power goes out? No lights, no oxygen -- and your anesthesia stops flowing. It happens constantly in hospitals throughout the world, turning routine procedures into tragedies. Erica Frenkel demos one solution: the universal anesthesia machine. share Talkbacks and Comments: Episode Comment

• TED: Lisa Harouni: A primer on 3D printing - Lisa Harouni (2011) Date: 01/23/12    Listen Now )) Duration: 15 minutes 6 seconds (1 segment)

  2012 may be the year of 3D printing, when this three-decade-old technology finally becomes accessible and even commonplace. Lisa Harouni gives a useful introduction to this fascinating way of making things -- including intricate objects once impossible to create. share Talkbacks and Comments: Episode Comment

• TED: Alain de Botton: Atheism 2.0 - Alain de Botton (2011) Date: 01/17/12    Listen Now )) Duration: 19 minutes 31 seconds (1 segment)

  What aspects of religion should atheists (respectfully) adopt? Alain de Botton suggests a "religion for atheists" -- call it Atheism 2.0 -- that incorporates religious forms and traditions to satisfy our human need for connection, ritual and transcendence. share Talkbacks and Comments: Episode Comment

• TED: Sonaar Luthra: Meet the Water Canary - Sonaar Luthra (2011) Date: 01/16/12    Listen Now )) Duration: 3 minutes 53 seconds (1 segment)

  After a crisis, how can we tell if water is safe to drink? Current tests are slow and complex, and the delay can be deadly, as in the cholera outbreak after Haiti's earthquake in 2010. TED Fellow Sonaar Luthra previews his design for a simple tool that quickly tests water for safety -- the Water Canary. share Talkbacks and Comments: Episode Comment

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