Pepper spray and tasers are in increasing use by both police and military, and more exotic non-lethal weapons such as heat rays are in the works. At TEDxCanberra, ethicist Stephen Coleman explores the unexpected consequences of their introduction and asks some challenging questions.
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How do you remember where you parked your car? How do you know if you're moving in the right direction? Neuroscientist Neil Burgess studies the neural mechanisms that map the space around us, and how they link to memory and imagination.
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Underwater filmmaker Mike deGruy has spent decades looking intimately at the ocean. A consummate storyteller, he takes the stage at Mission Blue to share his awe and excitement -- and his fears -- about the blue heart of our planet.
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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.
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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.
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We believe that we should work to be happy, but could that be backwards? In this fast-moving and entertaining talk from TEDxBloomington, psychologist Shawn Achor argues that actually happiness inspires productivity.
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Surgery, chemotherapy and radiation are the best-known methods for treating cancer. At TEDMED, Bill Doyle presents a new approach, called Tumor Treating Fields, which uses electric fields to interrupt cancer cell division. Still in its infancy -- and approved for only certain types of cancer -- the treatment comes with one big benefit: quality of life.
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Peter van Uhm is the Netherlands’ chief of defense, but that does not mean he is pro-war. At TEDxAmsterdam he explains how his career is one shaped by a love of peace, not a desire for bloodshed -- and why we need armies if we want peace.
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Women aren’t micro--so why do they only get micro-loans? At TEDxWomen reporter Gayle Tzemach Lemmon argues that women running all types of firms-- from home businesses to major factories-- are the overlooked key to economic development.
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Imagine playing a video game controlled by your mind. Now imagine that game also teaches you about your own patterns of stress, relaxation and focus. At TEDxToronto Ariel Garten shows how looking at our own brain activity gives new meaning to the ancient dictum "know thyself."
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Every doctor makes mistakes. But, says physician Brian Goldman, medicine's culture of denial (and shame) keeps doctors from ever talking about those mistakes, or using them to learn and improve. Telling stories from his own long practice, he calls on doctors to start talking about being wrong.
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In the 1970s, Diana Nyad set long-distance swim records that are still unbroken. Thirty years later, at 60, she attempted her longest swim yet, from Cuba to Florida. In this funny, powerful talk at TEDMED, she talks about how to prepare mentally to achieve an extreme dream, and asks: What will YOU do with your wild, precious life?
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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.
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We all want customized experiences and products -- but when faced with 700 options, consumers freeze up. With fascinating new research, Sheena Iyengar demonstrates how businesses (and others) can improve the experience of choosing.
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What does a bill like PIPA/SOPA mean to our shareable world? At the TED offices, Clay Shirky delivers a proper manifesto -- a call to defend our freedom to create, discuss, link and share, rather than passively consume.
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Cybercrime expert Mikko Hypponen talks us through three types of online attack on our privacy and data -- and only two are considered crimes. "Do we blindly trust any future government? Because any right we give away, we give away for good."
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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.
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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.
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Inspired by Aung San Suu Kyi’s call to action, “If you’re feeling helpless, help someone,” Morley composed this song. She sings it at TEDxWomen in her gorgeous, warm voice.
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We have no ways to directly observe molecules and what they do -- Drew Berry wants to change that. At TEDxSydney he shows his scientifically accurate (and entertaining!) animations that help researchers see unseeable processes within our own cells.
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In politics, it seems counterintuitive to engage in dialogue with violent groups, with radicals and terrorists, and with the states that support them. But Jonas Gahr Støre, the foreign minister of Norway, makes a compelling case for open discussion, even when values diverge, in an attempt to build greater security for all.
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In 2011 three young women swept the top prizes of the first Google Science Fair. At TEDxWomen Lauren Hodge, Shree Bose and Naomi Shah described their extraordinary projects-- and their route to a passion for science.
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Sebastian Wernicke thinks every TEDTalk can be summarized in six words. At TEDxZurich, he shows how to do just that -- and less.
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Paddy Ashdown claims that we are living in a moment in history where power is changing in ways it never has before. In a spellbinding talk at TEDxBrussels he outlines the three major global shifts that he sees coming.
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Within this generation, an extra 30 years have been added to our life expectancy -- and these years aren’t just a footnote or a pathology. At TEDxWomen, Jane Fonda asks how we can think about this new phase of our lives.
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