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Brian Greene: Making sense of string theory

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In clear, nontechnical language, string theorist Brian Greene explains how our understanding of the universe has evolved from Einstein's notions of gravity and space-time to superstring theory, where minuscule strands...

Marco Tempest: The augmented reality of techno-magic

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Using sleight-of-hand techniques and charming storytelling, illusionist Marco Tempest brings a jaunty stick figure to life onstage at TEDGlobal.

Cameron Russell: Looks aren’t everything. Believe me, I’m a model.

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Cameron Russell admits she won "a genetic lottery": she's tall, pretty and an underwear model. But don't judge her by her looks. In this fearless talk, she takes a wry look at the industry that had her looking highly ...

Dan Gilbert: Why are we happy? Why aren’t we happy?

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Dan Gilbert, author of Stumbling on Happiness, challenges the idea that we'll be miserable if we don't get what we want. Our "psychological immune system" let's us feel truly happy even when things don't go as planned.

JJ Abrams: the mystery box

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J.J. Abrams traces his love for the unseen mystery - a passion that's evident in his films and TV shows, including Cloverfield, Lost and Alias -- back to its magical beginnings.

Barry Schwartz: The paradox of choice

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Psychologist Barry Schwartz takes aim at a central tenet of western societies: freedom of choice. In Schwartz's estimation, choice has made us not freer but more paralyzed, not happier but more dissatisfied.

Johnny Lee: Wii Remote hacks

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Johnny Lee demos his amazing Wii Remote hacks, which transform the $40 game piece into a digital whiteboard, a touchscreen and a head-mounted 3-D viewer. A multi-ovation demo from TED2008.

Michael Specter: The danger of science denial

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Vaccine-autism claims, "Frankenfood" bans, the herbal cure craze: All point to the public's growing fear (and, often, outright denial) of science and reason, says Michael Specter. He warns the trend spells disaster fo...

Amy Cuddy: Your body language shapes who you are

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Body language affects how others see us, but it may also change how we see ourselves. Social psychologist Amy Cuddy shows how "power posing" -- standing in a posture of confidence, even when we don't feel confident --...

Alain de Botton: A kinder, gentler philosophy of success

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Alain de Botton examines our ideas of success and failure -- and questions the assumptions underlying these two judgments. Is success always earned? Is failure? He makes an eloquent, witty case to move beyond snobbery...

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