What hallucination reveals about our minds | Oliver Sacks

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Neurologist and author Oliver Sacks brings our attention to Charles Bonnett syndrome — when visually impaired people experience lucid hallucinations. He describes the experiences of his patients in heartwarming detail and walks us through the biology of this under-reported phenomenon.

TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the “Sixth Sense” wearable tech, and “Lost” producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at http://www.ted.com/translate. Watch a highlight reel of the Top 10 TEDTalks at http://www.ted.com/index.php/talks/top10

John Lloyd inventories the invisible

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http://www.ted.com Nature’s mysteries meet tack-sharp wit in this hilarious, 10-minute mix of quips and fun lessons, as comedian, writer and TV man John Lloyd plucks at the substance of several things not seen.

TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the “Sixth Sense” wearable tech, and “Lost” producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at http://www.ted.com/translate. Watch a highlight reel of the Top 10 TEDTalks at http://www.ted.com/index.php/talks/top10

We Are Here – Torchwood: Children of Earth – BBC

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The children of Earth have stopped once more and all around the world their fingers point to the sky. In London, the clouds are pierced open by a huge pillar of fire…the 456 have arrived. Dramatic clip from the third season Torchwood. Watch more high quality videos on the new BBC America YouTube channel here: http://www.youtube.com/bbcamericatv Find out more about Torchwood on the BBC America website here:http://www.bbcamerica.com/content/262/index.jsp. You can also BUY this season through the BBC America Shop here: http://www.bbcamericashop.com/search-results.html?kword=Torchwood&cat_id=

Captain Jack rescue – Torchwood: Children of Earth – BBC

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Having overpowered a security guard in the secret government prison, Gwen and Rhys frantically search the cells for Captain Jack. But when Gwen is spotted on CCTV they are very quickly overpowered by an army of guards. With seemingly no way out, can Ianto come to the rescue? Dramatic clip taken from the third season of Torchwood. Watch more high quality videos on the new BBC America YouTube channel here: http://www.youtube.com/bbcamericatv Find out more about Torchwood on the BBC America website here:http://www.bbcamerica.com/content/262/index.jsp. You can also BUY this season through the BBC America Shop here: http://www.bbcamericashop.com/search-results.html?kword=Torchwood&cat_id=